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 8 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. Michelle Anne Healy, PHARM.D.Ambulatory Care Pharmacist1194186601
  2. Robin Heller, LCSWClinical Social Worker1568538577
  3. Nina Helmer, M.D.Child & Adolescent Psychiatry Physician1013095512
  4. Vidya Hemmad, PTPhysical Medicine & Rehabilitation Physician1629249289
  5. Cassandra HernandezBehavior Technician1912869629
  6. Vianey Hernandez ArellanoBehavior Technician1598632267
  7. Monique HighbaughBehavior Technician1811679715
  8. Melody HillSpeech-Language Assistant1073437950
  9. Sabine Hill, D.O.Internal Medicine Physician1477631968
  10. Vanessa Ho, B.SC. IN PHARMACYPharmacist1205155694
  11. Catherine HoangOccupational Therapist1003741000
  12. Emily HoangBehavior Technician1508799420
  13. Gette Hoji ShabirBehavior Analyst1386287167
  14. Dawn HolderfieldBehavior Analyst1023531779
  15. Hang Holoyda, PA.CSurgical Physician Assistant1982750212
  16. Shalan HooksBehavior Technician1871378778
  17. Matthew Hooper, P.T.Physical Therapist1649567793
  18. Shoko HoriuchiClinical Psychologist1467884205
  19. Anela HornBehavior Analyst1558107003
  20. Connie HsuSpeech-Language Pathologist1710803937
  21. Nicole Hsu, PHARMDPharmacist1417668641
  22. Yan HuAcupuncturist1487979316
  23. Cecilia Huang, DPTPhysical Therapist1316551971
  24. Elaine Huang, O.D.Optometrist1811152705
  25. Herman Huang, PT, DPTOrthopedic Physical Therapist1265957682
  26. John HuangDentist1922847763
  27. Vicki Hughes, O.D.Optometrist1639220585
  28. Danny Hum, O.D.Optometrist1700930294
  29. Sara HumphreysSpeech-Language Assistant1053952754
  30. Joshua Hutchison, COTAOccupational Therapy Assistant1467017863
  31. Loc Huynh, DMDDentist1861588725
  32. Irene HwangPharmacist1396254777
  33. Jonathan ImPharmacist1730846882
  34. Keith Imazumi, RPHPharmacist1053502443
  35. Dawn Ingram, PSY.D.Clinical Psychologist1619044146
  36. Tyler IntrieriAssistant Health Information Record Technician1811663057
  37. Jennifer Isaacs, M.D.Obstetrics & Gynecology Physician1972653798
  38. Tyrone Isquirdo, D.C., Q.M.E.Chiropractor1902946098
  39. Jeongsim Izadi, RNNurse Practitioner1639776933
  40. Jeremy Jackson, MDFamily Medicine Physician1780262246
  41. Sue Jacobs, CNMAdvanced Practice Midwife1295724458
  42. Shuja Jafar-Ali, M.D.Psychiatry Physician1548348394
  43. Jotika JagasiaCounselor1396341889
  44. Laurie Jaghab, PSY.D.Clinical Psychologist1811121429
  45. Kyle Jahangiri, D.C.Neurology Chiropractor1386991396
  46. Pratiti Jain, PHARMDPharmacist1336304617
  47. Fotima Jaludi, DDSGeneral Practice Dentistry1184459117
  48. Johnny Jang, O.D.Optometrist1932266798
  49. Anthony Jannetti, PHDClinical Psychologist1902957772
  50. Jessica JattanBehavior Technician1770260515

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.