Doctors and health care providers in Whittier, CA
2,836 individual NPPES records list a practice address in Whittier, 80th of 812 California cities. The largest group is behavior technician: 272, 10% of the city's records, against 18% across California. Page 49 of 57.
The 8 largest groups in Whittier
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Whittier in California
- Rank in California80th of 812 cities by records
- Share of the state0.3% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups19.8% of all records
Compared with California as a whole, Whittier has 19.1× the state's share of speech-language assistant records and 0.50× its share of mental health counselor records.
Providers in Whittier, alphabetically
- Frederick Shum, MDNeonatal-Perinatal Medicine Physician1124166095
- Merrill Shum, M.D.Hematology & Oncology Physician1982819702
- Mubina Siddiqui, N.PFamily Nurse Practitioner1386049237
- Gregory Siegel, DCChiropractor1801800297
- Esmeralda Sifuentes, M.S. CCC-SLPSpeech-Language Pathologist1457916058
- Frank SigalaMassage Therapist1497447783
- Karin Siguenza, MDEmergency Medicine Physician1457989394
- Rob Silkensen, OT/LOccupational Therapist1619337540
- Eva Sillas, LVNLicensed Vocational Nurse1871971143
- Jocelyn Sillas, BISpeech-Language Assistant1932798774
- Aneissa SilvaBehavior Technician1952232597
- Geraldy SilvaSpeech-Language Pathologist1023765161
- Rachel Silva, SLPASpeech-Language Assistant1073388625
- Beth Silvey, LCSWClinical Social Worker1346853983
- Lea SimerStudent in an Organized Health Care Education/Training Program1548124001
- Leo Simi, LMFTMarriage & Family Therapist1144490228
- Samantha Simon, SLPASpeech-Language Assistant1689316358
- Sharon SinPediatric Occupational Therapist1194382705
- Alexander Sinclair, M.D.Plastic and Reconstructive Surgery Physician1407063951
- Jaskaran Singh, MDEmergency Medicine Physician1205218278
- Rashi SinghSurgery Physician1598328692
- Willy Singh, D.O.Nephrology Physician1265587075
- Usman Singidas, MDHospitalist Physician1811457559
- Valerie Sinkus, PTPhysical Therapist1477504629
- Harold Sintov, MDEmergency Medicine Physician1255378147
- Alina Skwarcan, CPOOrthotist1851990402
- Douglas Slabaugh, DOEmergency Medicine Physician1053359711
- Matthew SlaterBehavior Technician1447883806
- Robert Slough, M.D.Emergency Medicine Physician1932547809
- Alma Smith, MFTIMarriage & Family Therapist1760627608
- Amber Smith, PTA PHYSICAL THERAPIPhysical Therapy Assistant1164751814
- Barbara SmithCommunity Health Registered Nurse1801287826
- Brad Smith, DCChiropractor1437223047
- Celine SmithPhysician Assistant1699499657
- Kerrigan SmithStudent in an Organized Health Care Education/Training Program1972467447
- Benjamin Snow, AMFTMarriage & Family Therapist1033834098
- Chad SnyderClinical Social Worker1790172328
- Carla SoberanesMassage Therapist1124896519
- Teresa Sokol, PA CPhysician Assistant1144213067
- Beatriz Sola, PHLEBOTOMISTPhlebotomy Technician1649941378
- Robert Solis, RPHPharmacist1982815015
- Robert SolisLicensed Psychiatric Technician1245894260
- Isabel SollenderBehavior Technician1710840954
- Marilyn Sologuren, RNAmbulatory Women's Health Care Registered Nurse1245120930
- Claudia SolorioRehabilitation Practitioner1134438641
- Gene Soloway, M.D.Obstetrics & Gynecology Physician1134283088
- Steven Soltani, DOStudent in an Organized Health Care Education/Training Program1851093975
- Pedram Soltanzadeh, DMDGeneral Practice Dentistry1205900438
- Rebecca SomaOccupational Therapy Assistant1053072215
- Maria Nicole Carmela Sombillo, OTR/LOccupational Therapist1396561239
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Whittier, California appears in the CMS National Plan and Provider Enumeration System with 2,836 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Whittier - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Whittier practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.
The provider mix in Whittier is weighted toward Behavior Technician (272 clinicians, followed by Clinical Social Worker with 149 and Speech-Language Assistant with 141). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to California's population, Whittier reports roughly 7.3 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.
Of California's most common specialties, Case Manager/Care Coordinator is the most prominent one with no provider currently listing a Whittier practice address, a coverage gap Whittier patients typically fill by traveling to a larger nearby hub.
For Whittier patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.
For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.
Common questions
How many doctors are in Whittier, CA?
There are 2,836 registered healthcare providers in Whittier, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Whittier?
The most common specialties in Whittier are Behavior Technician, Clinical Social Worker, Speech-Language Assistant, Marriage & Family Therapist, Pharmacist. Behavior Technician has the most providers with 272.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.