Los Angeles, CA: Lumbar Posterior Spinal Fusion Surgery Cost Comparison

Lumbar Posterior Spinal Fusion Surgery Cost Report - Los Angeles, CA


$38,400
$62,400
$105,600
Get a Free Price Quote >>

Lumbar Posterior Spinal Fusion Surgery Cost Report in Los Angeles, CA Summary

A Lumbar Posterior Spinal Fusion Surgery costs $62,360 in Los Angeles when you take the median price of the 330 medical providers who perform Lumbar Posterior Spinal Fusion Surgery procedures in the Los Angeles, CA area. As a healthcare consumer you should understand that prices of medical procedures vary and if you shop from the Los Angeles providers below you may be able to save money. Shop around by requesting a free quote from New Choice Health and start saving!

Certified Provider NewChoiceHealth Certified Providers
Partner Logo
Patient Assist - Medical Procedure Assistance
Certified Provider
NewChoiceHealth
Accredited Provider
NewChoiceHealth
2 facilities in Los Angeles. Request a Free Quote!

Price Range:
$24,000 - $75,200

Compare Lumbar Posterior Spinal Fusion Surgery Providers in Los Angeles, CA

Facility Name City Price Range
Barranca Surgical Center Irvine $24,000 - $75,200
Arcadia Outpatient Surgery Center Arcadia $24,000 - $75,200
20th Street Surgery Center Santa Monica $24,000 - $75,200
University of California Irvine Medical Center Orange $46,000 - $144,300
Pasadena Ambulatory Surgery Center Pasadena $24,000 - $75,200
The Beverly Hills Center for Special Surgery Los Angeles $24,000 - $75,200
Birch Outpatient Surgery Center Newport Beach $24,000 - $75,200
Westwood Surgery Center Los Angeles $24,000 - $75,200
Newport Crest Surgical Center Newport Beach $24,000 - $75,200
Santa Monica - Ucla Med Ctr and Orthopaedic Hospital Santa Monica $46,000 - $144,300
Huntington Beach Hospital Huntington Beach $46,000 - $144,300
Century Surgery Los Angeles $24,000 - $75,200
Peninsula Outpatient Surgery Center San Pedro $24,000 - $75,200
Providence Holy Cross Medical Center Mission Hills $46,000 - $144,300
Huntington Hospital Pasadena $46,000 - $144,300
North Orange County Surgery Center Anaheim $24,000 - $75,200
Oakpark Surgery Center Pasadena $24,000 - $75,200
Sunset Ambulatory Surgical Center Los Angeles $24,000 - $75,200
Southern California Hospital at Hollywood Hollywood $46,000 - $144,300
Memorialcare Long Beach Medical Center Long Beach $46,000 - $144,300
Hoag Outpatient Surgery Center Newport Beach $24,000 - $75,200
South Bay Surgical and Spine Institute Long Beach $24,000 - $75,200
Hallmark Surgical Center of Northridge Northridge $24,000 - $75,200
Mission Surgery Center Mission Viejo $24,000 - $75,200
Anaheim Surgicenter Anaheim $24,000 - $75,200
City of Hope National Medical Center Duarte $46,000 - $144,300
Vista Surgical Center Orange $24,000 - $75,200
Pih Health Hospital - Whittier Whittier $46,000 - $144,300
Newport Bay Surgery Center Newport Beach $24,000 - $75,200
Suburban Medical Center Paramount $46,000 - $144,300
Msnbz Surgical Center Beverly Hills $24,000 - $75,200
Specialty Surgical Center, Arcadia Arcadia $24,000 - $75,200
California Surgical Institute Brea $24,000 - $75,200
Avanguard Surgery Center Tarzana $24,000 - $75,200
Ocean Park Health Surgery Center Los Angeles $24,000 - $75,200
Saddleback Memorial Medical Center - San Clemente San Clemente $46,000 - $144,300
Pacific Ambulatory Surgery Center Alhambra $24,000 - $75,200
Buena Vista Surgery Center Burbank $24,000 - $75,200
Main Street Specialty Surgery Center Orange $24,000 - $75,200
Memorial Hospital of Gardena Gardena $46,000 - $144,300
Newport Bluffs Surgery Center Newport Beach $24,000 - $75,200
Saint Francis Medical Center Lynwood $46,000 - $144,300
Glendale Outpatient Surgery Center Glendale $24,000 - $75,200
Sunflower Surgical Institute Costa Mesa $24,000 - $75,200
Sharp Surgery Center Torrance $24,000 - $75,200
Pacific Hospital of Long Beach Long Beach $46,000 - $144,300
Crown Valley Surgery Center Mission Viejo $24,000 - $75,200
Tarzana Surgery Center Tarzana $24,000 - $75,200
LE Surgical Los Angeles $24,000 - $75,200
Del Rey Surgery Center Marina Del Rey $24,000 - $75,200
Time Surgical Facility Santa Ana $24,000 - $75,200
East Los Angeles Doctors Hospital Los Angeles $46,000 - $144,300
Serra Community Medical Clinic Surgery Center Sun Valley $24,000 - $75,200
Four Seasons Surgery Centers of Huntington Beach Huntington Beach $24,000 - $75,200
Top Surgeons West Hills $24,000 - $75,200
Ocean Park Surgical Center Venice $24,000 - $75,200
Sunset Surgicenter Los Angeles $24,000 - $75,200
Wilshire Surgicenter Beverly Hills $24,000 - $75,200
Third Street Surgery Center Los Angeles $24,000 - $75,200
Magnolia Surgery Center Westminster $24,000 - $75,200
Boulevard Surgicenter Encino $24,000 - $75,200
Doctors Surgery Center Fountain Valley $24,000 - $75,200
Torrance Surgery Center Torrance $24,000 - $75,200
Specialty Surgical Center of Irvine Irvine $24,000 - $75,200
Centinela Hospital Medical Center Inglewood $46,000 - $144,300
Sunset Surgical Center West Covina $24,000 - $75,200
Los Angeles General Medical Center Los Angeles $46,000 - $144,300
La/oc Surgical Center Redondo Beach $24,000 - $75,200
Sherman Oaks Surgery Center Sherman Oaks $24,000 - $75,200
Sph Irvine Irvine $24,000 - $75,200
Fullerton Surgical Center Fullerton $24,000 - $75,200
Memorialcare Saddleback Medical Center Laguna Hills $46,000 - $144,300
Chapman Global Medical Center Orange $46,000 - $144,300
Diamond Bar Surgery Center Diamond Bar $24,000 - $75,200
Rinaldi Surgery Center Mission Hills $24,000 - $75,200
Venice Beach Surgical Center Los Angeles $24,000 - $75,200
Community Hospital of Gardena Gardena $46,000 - $144,300
Antelope Valley Surgical Institute Lancaster $24,000 - $75,200
Ronald Reagan Ucla Medical Center Los Angeles $46,000 - $144,300
Euclid Outpatient Surgery Center Fountain Valley $24,000 - $75,200
Aalpha Surgical Center Culver City $24,000 - $75,200
Hoag Hospital Newport Beach $24,000 - $75,200
Westminster Surgery Center Westminster $24,000 - $75,200
Tri-city Regional Medical Center Hawaiian Gardens $46,000 - $144,300
Global Care Surgery Center Westminster $24,000 - $75,200
Brea Surgical Center Brea $24,000 - $75,200
MD Surgical Solutions Sherman Oaks $24,000 - $75,200
Olympia Medical Center Los Angeles $46,000 - $144,300
Alhambra Hospital Medical Center Alhambra $46,000 - $144,300
2121 Surgery Center Santa Monica $24,000 - $75,200
Beverly Hills Canter for Arthroscopic and Outpatient Surgery Los Angeles $24,000 - $75,200
Los Alamitos Surgery Center Los Alamitos $24,000 - $75,200
Comprehensive Outpatient Surgery Center Beverly Hills $24,000 - $75,200
Ahmc Anaheim Regional Medical Center Anaheim $46,000 - $144,300
Beverly Hospital Montebello $46,000 - $144,300
Chevy Chase Ambulatory Center Glendale $24,000 - $75,200
WMG Procedure Center Los Angeles $24,000 - $75,200
Reagan Street Surgery Center Los Alamitos $24,000 - $75,200
Coastal Surgery Center Huntington Beach $24,000 - $75,200
San Gabriel Ambulatory Surgery Center San Gabriel $24,000 - $75,200
Sherman Oaks Hospital Sherman Oaks $46,000 - $144,300
Procedure Center of Irvine Irvine $24,000 - $75,200
The Advanced Surgical Institute Huntington Beach $24,000 - $75,200
Parkside Surgical Institute Santa Monica $24,000 - $75,200
Downey Surgical Clinic Downey $24,000 - $75,200
Usc Arcadia Hospital Arcadia $46,000 - $144,300
Pacific Coast Surgical Center Torrance $24,000 - $75,200
Providence Little CO of Mary Med Ctr San Pedro San Pedro $46,000 - $144,300
Orange County Global Medical Center Santa Ana $46,000 - $144,300
Santa Monica Surgical Center Santa Monica $24,000 - $75,200
Encino Hospital Medical Center Encino $46,000 - $144,300
Oak Tree ASC Pasadena $24,000 - $75,200
Newport Centre Outpatient Surgery Facilities Newport Beach $24,000 - $75,200
Ocean Surgey Center Torrance $24,000 - $75,200
Robertson Surgical Center Beverly Hills $24,000 - $75,200
Kaiser Foundation Hospital - Orange County - Anaheim Anaheim $46,000 - $144,300
Pasadena Advanced Surgery Institute Pasadena $24,000 - $75,200
Downey Surgery Center Downey $24,000 - $75,200
Cedar - Sinai Marina Del Rey Hospital Marina Del Rey $46,000 - $144,300
Downtown La Ambulatory Surgical Center Los Angeles $24,000 - $75,200
Lac/Olive View - Ucla Medical Center Sylmar $46,000 - $144,300
South Coast Medical Center Laguna Beach $46,000 - $144,300
Lido Surgical Institute Newport Beach $24,000 - $75,200
North Anaheim Surgicenter Anaheim $24,000 - $75,200
California Specialty Surgery Cneter Mission Viejo $24,000 - $75,200
Memorialcare Orange Coast Medical Center Fountain Valley $46,000 - $144,300
Los Angeles Surgical Center Los Angeles $24,000 - $75,200
Beverly Hills Surgery and Medical Center Lynwood $24,000 - $75,200
Lac/Harbor - Ucla Med Center Torrance $46,000 - $144,300
Garden Grove Outpatient Surgery Center Garden Grove $24,000 - $75,200
Hollywood Presbyterian Medical Center Los Angeles $46,000 - $144,300
Huntington Surgery Center Huntington Beach $24,000 - $75,200
M/S Surgery Center Lynwood $24,000 - $75,200
Northridge Hospital Medical Center Northridge $46,000 - $144,300
USA Advanced Care Surgical Center Los Angeles $24,000 - $75,200
Roxbury Surgery Center Beverly Hills $24,000 - $75,200
Surgery Center of the Pacific Santa Monica $24,000 - $75,200
Garfield Medical Center Monterey Park $46,000 - $144,300
Orangewood Surgical Center Orange $24,000 - $75,200
Kaiser Foundation Hospital - Baldwin Park Baldwin Park $46,000 - $144,300
Santa Ana Outpatient Surgery Center Santa Ana $24,000 - $75,200
Laguna Hills Surgery Center Laguna Woods $24,000 - $75,200
West Hills Hospital and Medical Center West Hills $46,000 - $144,300
Antelope Valley Hospital Lancaster $46,000 - $144,300
Irvine Regional Hospital and Medical Center Irvine $46,000 - $144,300
Pacifica Hospital of the Valley Sun Valley $46,000 - $144,300
Ocean Surgicenter Santa Monica $24,000 - $75,200
Kaiser Foundation Hospital - Downey Bellflower $46,000 - $144,300
2001 Surgery Center Santa Monica $24,000 - $75,200
Westside Medical Center Los Angeles $24,000 - $75,200
Pih Health Good Samaritan Hospital Los Angeles $46,000 - $144,300
Providence Saint Joseph Medical Ctr Burbank $46,000 - $144,300
Specialty Surgical Center of Thousand Oaks Beverly Hills $24,000 - $75,200
Surgery Center of South Bay Torrance $24,000 - $75,200
Comprehensive Ambulatory Surgical Medical Center El Monte $24,000 - $75,200
Foothill Ranch Surgi-center Foothill Ranch $24,000 - $75,200
Surgery Center of Long Beach Long Beach $24,000 - $75,200
Burbank Outpatient Surgery Center Burbank $24,000 - $75,200
State of the Art Surgery Center Los Angeles $24,000 - $75,200
Glendale Adventist Medical Center Glendale $46,000 - $144,300
Anaheim General Hospital Anaheim $46,000 - $144,300
Spalding Outpatient Surgery Center Beverly Hills $24,000 - $75,200
Palmdale Regional Medical Center Lancaster $46,000 - $144,300
Sampson Medical Corporation Montebello $24,000 - $75,200
Emanate Health Inter - Community Hospital Covina $46,000 - $144,300
Foothill Ranch Surgery and Medical Center Foothill Ranch $24,000 - $75,200
Orthopaedic Hospital Los Angeles $46,000 - $144,300
Summit Surgical Center Beverly Hills $24,000 - $75,200
Brand Surgical Institute Glendale $24,000 - $75,200
Pomona Valley Hospital Medical Center Pomona $46,000 - $144,300
Pacific Hills Surgery Center Laguna Hills $24,000 - $75,200
Motion Picture and Television Hospital Woodland Hills $46,000 - $144,300
West Wilshire Medical Surgical Center Los Angeles $24,000 - $75,200
Providence Little Company of Mary Med Ctr Torrance Torrance $46,000 - $144,300
Garden Grove Hospital and Medical Center Garden Grove $46,000 - $144,300
Surgicare of La Veta Orange $24,000 - $75,200
Coastal Communities Hospital Santa Ana $46,000 - $144,300
Long Beach Surgical Institute Long Beach $24,000 - $75,200
College Hospital Costa Mesa Costa Mesa $46,000 - $144,300
Beach District Surgery Center Redondo Beach $24,000 - $75,200
Newport Plaza Surgery Center Costa Mesa $24,000 - $75,200
Monterey Park Hospital Monterey Park $46,000 - $144,300
Antelope Valley Surgery Center Lancaster $24,000 - $75,200
Marina Outpatient Surgery Center Marina Del Rey $24,000 - $75,200
Greater El Monte Community Hospital South El Monte $46,000 - $144,300
South Gate Ambulatory Surgical Center South Gate $24,000 - $75,200
Tower Outpatient Surgey Center Los Angeles $24,000 - $75,200
Oasis Surgery Center Palmdale $24,000 - $75,200
Four Seasons Surgery Centers of Encino Encino $24,000 - $75,200
Eden Surgical Center Calabasas $24,000 - $75,200
Westside Multispecialty Surgery Center Los Angeles $24,000 - $75,200
California Surgery Center West Hills $24,000 - $75,200
Torrance Outpatient Surgery Center Torrance $24,000 - $75,200
Imagebased Surgicenter Corporation Santa Monica $24,000 - $75,200
Surgical Suite of Southern California Long Beach $24,000 - $75,200
Valley Presbyterian Hospital Van Nuys $46,000 - $144,300
Irvine Multi Specialty Surgical Care Irvine $24,000 - $75,200
Four Seasons Surgery Centers of Anaheim Anaheim $24,000 - $75,200
Encino-tarzana Regional Medical Center - Tarzana Tarzana $46,000 - $144,300
Valencia Outpatient Surgical Center Santa Clarita $24,000 - $75,200
Kaiser Foundation Hospital - South Bay Harbor City $46,000 - $144,300
Madison 101 Pasadena Surgery Center Pasadena $24,000 - $75,200
Los Angeles Community Hospital Los Angeles $46,000 - $144,300
Pacific Coast Ambulatory Surgicenter San Clemente $24,000 - $75,200
Mosaics Surgery Center Huntington Beach $24,000 - $75,200
Brotman Medical Center Culver City $46,000 - $144,300
West Coast Center for Surgeries San Clemente $24,000 - $75,200
Directed Interventional Surgery Center Santa Monica $24,000 - $75,200
Lasky Clinic Surgical Center Beverly Hills $24,000 - $75,200
West Anaheim Medical Center Anaheim $46,000 - $144,300
Advanced Diagnostic and Surgical Center Alhambra $24,000 - $75,200
Advanced Surgical Partners Costa Mesa $24,000 - $75,200
Manchester Surgical Pavillion Orange $24,000 - $75,200
Northridge Advanced Surgery Center Northridge $24,000 - $75,200
The Oc Surgery Center Santa Ana $24,000 - $75,200
Kaiser Foundation Hospital - Panorama City Panorama City $46,000 - $144,300
Azusa Surgery Center Azusa $24,000 - $75,200
West Coast Surgery Center Los Alamitos $24,000 - $75,200
Providence Mission Hospital Mission Viejo $46,000 - $144,300
Bolsa Outpatient Surgery Westminster $24,000 - $75,200
Century City Doctors Hospital Los Angeles $46,000 - $144,300
Kaiser Foundation Hospital - Woodland Hills Woodland Hills $46,000 - $144,300
Brentwood Surgery Center Los Angeles $24,000 - $75,200
Broadway Surgical Institute Santa Monica $24,000 - $75,200
Cedars - Sinai Medical Center Los Angeles $46,000 - $144,300
Lakewood Regional Medical Center Lakewood $46,000 - $144,300
International Surgical Institute Beverly Hills $24,000 - $75,200
Orange Coast Surgical Center Newport Beach $24,000 - $75,200
Regional Valley Surgery Center Lancaster $24,000 - $75,200
Regency Surgery Center Encino $24,000 - $75,200
Pasadena Surgery Center Pasadena $24,000 - $75,200
Pih Health Downey Hospital Downey $46,000 - $144,300
Center for Outpatient Surgery Whittier $24,000 - $75,200
Mission Community Hospital Panorama City $46,000 - $144,300
Whittier Outpatient Surgery Center Whittier $24,000 - $75,200
Nova Surgicenter Beverly Hills $24,000 - $75,200
Foothill Gateway Surgery Center Lake Forest $24,000 - $75,200
Southern California Minimal Invasive Endoscopy and Surgery Long Beach $24,000 - $75,200
Kerlan-jobe Surgery Center Los Angeles $24,000 - $75,200
Saint John's Health Center Santa Monica $46,000 - $144,300
Pacific Endoscopy and Surgery Center Fountain Valley $24,000 - $75,200
Whittier Hospital Medical Center Whittier $46,000 - $144,300
University of Southern California/Norris Comprehensize Care Los Angeles $46,000 - $144,300
Valencia Surgical Center Valencia $24,000 - $75,200
Congress Medical Surgery Center Pasadena $24,000 - $75,200
Studio City Surgical Center Studio City $24,000 - $75,200
Newport Center Surgical Newport Beach $24,000 - $75,200
City of Angels Medical Center - Downtown Campus Los Angeles $46,000 - $144,300
Mazzocco Ambulatory Surgical Center Van Nuys $24,000 - $75,200
Mile Square Surgery Center Fountain Valley $24,000 - $75,200
Fountain Valley Regional Hospital and Medical Center Fountain Valley $46,000 - $144,300
Pacific Surgery Center Burbank $24,000 - $75,200
Providence St. Jude Medical Center Fullerton $46,000 - $144,300
Kaiser Foundation Hospital - West LA Los Angeles $46,000 - $144,300
San Gabriel Valley Medical Center San Gabriel $46,000 - $144,300
Hoag Memorial Hospital Presbyterian Newport Beach $46,000 - $144,300
Oc Regional Surgical Center Orange $24,000 - $75,200
Glendale Mem Hospital and Hlth Center Glendale $46,000 - $144,300
Mesa Surgicenter Fullerton $24,000 - $75,200
Surgical Institute of Garden Grove Garden Grove $24,000 - $75,200
Pacific Surgery Center of Santa Monica Santa Monica $24,000 - $75,200
Placentia Linda Hospital Placentia $46,000 - $144,300
Usc Verdugo Hills Hospital Glendale $46,000 - $144,300
Palmdale Lancaster Surgery Center Lancaster $24,000 - $75,200
Providence St. Joseph Hospital Orange $46,000 - $144,300
Southern California Surgery Center Huntington Park $24,000 - $75,200
La Peer Surgery Center Beverly Hills $24,000 - $75,200
West Covina Medical Center West Covina $46,000 - $144,300
Pasadena Surgery Center Pasadena $24,000 - $75,200
Anaheim Global Medical Center Anaheim $46,000 - $144,300
Citrus Valley Medical Center - Queen of the Valley West Covina $46,000 - $144,300
Coast Plaza Doctors Hospital Norwalk $46,000 - $144,300
Kaiser Foundation Hospital - Los Angeles Los Angeles $46,000 - $144,300
Valley Surgicenter Northridge $24,000 - $75,200
Tustin Hospital and Medical Center Tustin $46,000 - $144,300
Providence Holy Cross Surgery Center Mission Hills $24,000 - $75,200
Newport Beach Surgery Center Newport Beach $24,000 - $75,200
Huntington Pointe Surgery Center Huntington Beach $24,000 - $75,200
Newport Avenue Surgery Institute Tustin $24,000 - $75,200
West Coast Outpatient Surgery Center Garden Grove $24,000 - $75,200
Valley Ambulatory Surgery Center Van Nuys $24,000 - $75,200
Mid-wilshire Surgery Center Los Angeles $24,000 - $75,200
Linden Crest Surgery Center Beverly Hills $24,000 - $75,200
Emanate Health Foothill Presbyterian Hospital Glendora $46,000 - $144,300
South Bay Surgery Center Hermosa Beach $24,000 - $75,200
Plaza Surgical Medical Center Monterey Park $24,000 - $75,200
Charleville Surgicenter, A Medical Corp. Beverly Hills $24,000 - $75,200
Almont Ambulatory Surgery Center Beverly Hills $24,000 - $75,200
Los Alamitos Medical Center Los Alamitos $46,000 - $144,300
Encino Place Surgery Center Encino $24,000 - $75,200
Valley Multi Specialty Surgery Center Reseda $24,000 - $75,200
San Dimas Community Hospital San Dimas $46,000 - $144,300
Coast Surgery Center Torrance $24,000 - $75,200
Sherman Way Surgical Center Reseda $24,000 - $75,200
Miracle Mile Medical Center Los Angeles $46,000 - $144,300
St Mary Medical Center Long Beach $46,000 - $144,300
Huntington Outpatient Surgery Center Pasadena $24,000 - $75,200
Daniel Freeman Memorial Hospital Inglewood $46,000 - $144,300
Starpoint Health Irvine $24,000 - $75,200
Camden Surgery Center Beverly Hills $24,000 - $75,200
Pacific Ambulatory Surgical Center Encino $24,000 - $75,200
Glendora Surgery Center Glendora $24,000 - $75,200
Torrance Memorial Medical Center Torrance $46,000 - $144,300
Foothill Surgery Center Arcadia $24,000 - $75,200
Encino Surgical Medical Center Encino $24,000 - $75,200
Wardlow Surgery Center Long Beach $24,000 - $75,200
Temple Community Hospital Los Angeles $46,000 - $144,300
California Hospital Medical Center LA Los Angeles $46,000 - $144,300
Culver City Surgical Center Culver City $24,000 - $75,200
Newport Center for Special Surgery Newport Beach $24,000 - $75,200
Lakeside Surgery Center Glendale $24,000 - $75,200
Laguna Niguel Surgery Center Laguna Niguel $24,000 - $75,200
Henry Mayo Newhall Hospital Valencia $46,000 - $144,300
Community Hospital of Long Beach Long Beach $46,000 - $144,300
Saint Vincent Medical Center Los Angeles $46,000 - $144,300
Monterey Park Outpatient Surgery Center Monterey Park $24,000 - $75,200
United Surgery Medical Center Montebello $24,000 - $75,200
Community Hospital of Huntington Park Huntington Park $46,000 - $144,300
West Hills Surgical Center West Hills $24,000 - $75,200
LA Palma Intercommunity Hospital La Palma $46,000 - $144,300
Keck Hospital of Usc Los Angeles $46,000 - $144,300
Casa Colina Surgery Center Pomona $24,000 - $75,200
Newport Coast Surgery Center Newport Beach $24,000 - $75,200
San Gabriel Valley Surgical Center West Covina $24,000 - $75,200
Oceanview Ambulatory Surgery Center Laguna Beach $24,000 - $75,200
East Valley Hospital Medical Center Glendora $46,000 - $144,300
The Center for Ambulatory Surgical Treatment Los Angeles $24,000 - $75,200
Memorialcare Surgical Center at Saddleback Laguna Hills $24,000 - $75,200
Pacifica Outpatient Surgery Center Huntington Beach $24,000 - $75,200
Pacific Alliance Medical Center Los Angeles $46,000 - $144,300
Map

In the news

CNN Health The Seattle Times NPR