NPPES file of Aug 9, 2026

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.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

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

  1. Joy Leong, RCP, RRTRegistered Respiratory Therapist1801402805
  2. Michelle LeuPharmacist1073865432
  3. Kara Levine, LCSWClinical Social Worker1831245109
  4. Bo LiAcupuncturist1942924030
  5. Marcia Li, M.D.Internal Medicine Physician1144308909
  6. Margaret Li, MDRheumatology Physician1215025317
  7. Juancho Libiran, M.D.Internal Medicine Physician1114004074
  8. Daphne LibreroPhysical Therapist1760061519
  9. Laudimir Limqueco, AGPCNPNurse Practitioner1053962597
  10. Marcus Lin, DDSDentist1972885002
  11. Sally Lin, MDOphthalmology Physician1023252855
  12. Suzanne Lin, MSSpeech-Language Pathologist1255142824
  13. Yun LinPharmacist1043628407
  14. Deja LinarezBehavior Analyst1639832280
  15. Huihui Ling, M.S.Speech-Language Pathologist1215851241
  16. Lucy Liu, MDDermatology Physician1568951838
  17. Viola LiuMental Health Counselor1871732362
  18. Agnes LoSpecialist1013139831
  19. Noela LofrancoBehavior Technician1407630775
  20. Laura Lopez FerreyCase Manager/Care Coordinator1336727015
  21. Kimberly Lopez LaraBehavior Technician1093683435
  22. Gary Louie, ODOptometrist1033253067
  23. Jessica Louie, RN, NPPsychiatric/Mental Health Nurse Practitioner1316762008
  24. Delma Louis-Rubin, LMFTMarriage & Family Therapist1326100744
  25. Chelsea Loveall, PT, DPT, CMTPhysical Therapist1336524644
  26. Xiu Lowe, M.D.Psychiatry Physician1043398894
  27. Mary Ellen Luca, P.T.Physical Therapist1457429565
  28. Joyce Luk, PHARM.D.Pharmacist1861777534
  29. Ladyleen LukbanRegistered Nurse1659036721
  30. Maria LundagCounselor1871792895
  31. Ann Lung, PH.D.Clinical Psychologist1396804233
  32. Anhthi Luong, AU.D.Audiologist1700409273
  33. Ngoc Quyen Luong, PHARMDAmbulatory Care Pharmacist1467933150
  34. Stephanie LutzOccupational Therapist1801721303
  35. Amy Luu, PHARMDAmbulatory Care Pharmacist1225875180
  36. Anh Nguyet Luu, MPAC, MPHPhysician Assistant1174932800
  37. Binh Luu, M.D.Physical Medicine & Rehabilitation Physician1295904092
  38. Long Luu, DDSOrthodontics and Dentofacial Orthopedics Dentistry1770776213
  39. Sandra Lyn, RNRegistered Nurse1134899743
  40. Justyce LynchBehavior Technician1316722648
  41. Renee MabonBehavior Analyst1780560524
  42. Brian Allan Macapinlac, PHARMDAmbulatory Care Pharmacist1336625193
  43. Kelly Magee-O'Dea, LCSWClinical Social Worker1225184591
  44. Olivia Magno, DDSGeneral Practice Dentistry1144093113
  45. Jacqueline Magno Lagasca, M.D.Psychiatry Physician1972675726
  46. Michael Magtoto, DMD, MMSC, DDSDentist1053446245
  47. Veronica MaharajOccupational Therapist1649781782
  48. Mary Mahood, M.F.T.Addiction (Substance Use Disorder) Counselor1619030608
  49. Daniel Mai, PSYDPsychologist1558850123
  50. Kirsty Maksel, M.S., CCC-SLPSpeech-Language Pathologist1437670320

The largest California cities

  1. Los Angeles69,537
  2. San Diego52,937
  3. San Francisco38,143
  4. Sacramento33,083
  5. San Jose20,925

All of California →

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.