Doctors and health care providers in Union City, CA
1,006 individual NPPES records list a practice address in Union City, 187th of 812 California cities. The largest group is behavior technician: 117, 12% of the city's records, against 18% across California. Page 11 of 21.
The 8 largest groups in Union City
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Union City in California
- Rank in California187th of 812 cities by records
- Share of the state0.1% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups25.4% of all records
Compared with California as a whole, Union City has 8.4× the state's share of speech-language assistant records and 0.32× its share of marriage & family therapist records.
Providers in Union City, alphabetically
- Joy Leong, RCP, RRTRegistered Respiratory Therapist1801402805
- Michelle LeuPharmacist1073865432
- Kara Levine, LCSWClinical Social Worker1831245109
- Bo LiAcupuncturist1942924030
- Marcia Li, M.D.Internal Medicine Physician1144308909
- Margaret Li, MDRheumatology Physician1215025317
- Juancho Libiran, M.D.Internal Medicine Physician1114004074
- Daphne LibreroPhysical Therapist1760061519
- Laudimir Limqueco, AGPCNPNurse Practitioner1053962597
- Marcus Lin, DDSDentist1972885002
- Sally Lin, MDOphthalmology Physician1023252855
- Suzanne Lin, MSSpeech-Language Pathologist1255142824
- Yun LinPharmacist1043628407
- Deja LinarezBehavior Analyst1639832280
- Huihui Ling, M.S.Speech-Language Pathologist1215851241
- Lucy Liu, MDDermatology Physician1568951838
- Viola LiuMental Health Counselor1871732362
- Agnes LoSpecialist1013139831
- Noela LofrancoBehavior Technician1407630775
- Laura Lopez FerreyCase Manager/Care Coordinator1336727015
- Kimberly Lopez LaraBehavior Technician1093683435
- Gary Louie, ODOptometrist1033253067
- Jessica Louie, RN, NPPsychiatric/Mental Health Nurse Practitioner1316762008
- Delma Louis-Rubin, LMFTMarriage & Family Therapist1326100744
- Chelsea Loveall, PT, DPT, CMTPhysical Therapist1336524644
- Xiu Lowe, M.D.Psychiatry Physician1043398894
- Mary Ellen Luca, P.T.Physical Therapist1457429565
- Joyce Luk, PHARM.D.Pharmacist1861777534
- Ladyleen LukbanRegistered Nurse1659036721
- Maria LundagCounselor1871792895
- Ann Lung, PH.D.Clinical Psychologist1396804233
- Anhthi Luong, AU.D.Audiologist1700409273
- Ngoc Quyen Luong, PHARMDAmbulatory Care Pharmacist1467933150
- Stephanie LutzOccupational Therapist1801721303
- Amy Luu, PHARMDAmbulatory Care Pharmacist1225875180
- Anh Nguyet Luu, MPAC, MPHPhysician Assistant1174932800
- Binh Luu, M.D.Physical Medicine & Rehabilitation Physician1295904092
- Long Luu, DDSOrthodontics and Dentofacial Orthopedics Dentistry1770776213
- Sandra Lyn, RNRegistered Nurse1134899743
- Justyce LynchBehavior Technician1316722648
- Renee MabonBehavior Analyst1780560524
- Brian Allan Macapinlac, PHARMDAmbulatory Care Pharmacist1336625193
- Kelly Magee-O'Dea, LCSWClinical Social Worker1225184591
- Olivia Magno, DDSGeneral Practice Dentistry1144093113
- Jacqueline Magno Lagasca, M.D.Psychiatry Physician1972675726
- Michael Magtoto, DMD, MMSC, DDSDentist1053446245
- Veronica MaharajOccupational Therapist1649781782
- Mary Mahood, M.F.T.Addiction (Substance Use Disorder) Counselor1619030608
- Daniel Mai, PSYDPsychologist1558850123
- Kirsty Maksel, M.S., CCC-SLPSpeech-Language Pathologist1437670320
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Union City, California appears in the CMS National Plan and Provider Enumeration System with 1,006 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 Union City - 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 Union City 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 Union City is weighted toward Behavior Technician (117 clinicians, followed by Pharmacist with 75 and Speech-Language Pathologist with 64). 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, Union City reports roughly 2.6 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, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Union City practice address, a coverage gap Union City patients typically fill by traveling to a larger nearby hub.
For Union City 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 Union City, CA?
There are 1,006 registered healthcare providers in Union City, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Union City?
The most common specialties in Union City are Behavior Technician, Pharmacist, Speech-Language Pathologist, Physical Therapist, General Practice Dentistry. Behavior Technician has the most providers with 117.
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.