NPPES file of Aug 9, 2026

Doctors and health care providers in Merced, CA

2,836 individual NPPES records list a practice address in Merced, 80th of 812 California cities. The largest group is behavior technician: 332, 12% of the city's records, against 18% across California. Page 32 of 57.

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

Merced 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 groups27.3% of all records

Compared with California as a whole, Merced has 5.2× the state's share of licensed vocational nurse records and 0.42× its share of marriage & family therapist records.

Providers in Merced, alphabetically

  1. Sergio Martinez-CasillasProfessional Counselor1033980842
  2. Stephanie Martinez-PiuserSchool Psychologist1487373882
  3. Thalia Martinez-SantoyoBehavior Technician1659869584
  4. Brian Maruyama, PH.D.Psychologist1063708451
  5. Michael Maruyama, AMFTMarriage & Family Therapist1447567896
  6. Anthony Masadey, LPTLicensed Psychiatric Technician1558411900
  7. Paula MasonCase Manager/Care Coordinator1447699988
  8. Juan MataCase Manager/Care Coordinator1063741783
  9. Kristen Mata, LMFTMarriage & Family Therapist1831771195
  10. Laurie Mata, WHNPWomen's Health Nurse Practitioner1528383411
  11. Roxanne MataCase Manager/Care Coordinator1144762022
  12. Jessica Matlock-JimenezLicensed Vocational Nurse1740145010
  13. Carrie Mattmiller, LVNLicensed Vocational Nurse1063068955
  14. Lyssabeth Mattoon, PH.D.Clinical Psychologist1366632747
  15. Gwen Mattox, LVNLicensed Vocational Nurse1649564121
  16. Adrian MayfieldLicensed Vocational Nurse1184336547
  17. Crystal MayoBehavior Technician1164306957
  18. Katelyn MayoMarriage & Family Therapist1255871505
  19. Rene MayoRehabilitation Practitioner1386453306
  20. Belsy Mayoral SalcidoCommunity Health Worker1801751672
  21. Terry Mays, SUDDCCase Manager/Care Coordinator1609612258
  22. Deirdre Mazzetto, NP, AGACNP-BCAcute Care Nurse Practitioner1023580446
  23. Erica McAfee, FNPFamily Nurse Practitioner1609547553
  24. Vanessa McAfeePharmacist1750251526
  25. Cathy McAuley, M.S.Professional Counselor1164737359
  26. James McCabe, FNPFamily Nurse Practitioner1821642968
  27. Anne McCarthyAddiction (Substance Use Disorder) Counselor1093965790
  28. Anthony McCarthyMental Health Counselor1366955320
  29. Zachary McComb, DMDDentist1245882455
  30. Elizabeth McCoySocial Worker1285288837
  31. Keyana McCoyLicensed Vocational Nurse1114490463
  32. Nicholas McCrayCommunity Health Worker1467176677
  33. Priscilla McCrea, RDRegistered Dietitian1679172878
  34. Kimberly McDanielRehabilitation Practitioner1447097035
  35. Jennifer McEvoy, MDSurgery Physician1275673766
  36. Imani McFarlandBehavior Technician1255213229
  37. Daryl McGuirePhysician Assistant1114581519
  38. Kirk McKelvey, PSY.D.Clinical Psychologist1134313984
  39. Brianna McKinneyBehavior Technician1417458027
  40. Jill McLeod, PASurgical Physician Assistant1306031406
  41. Kathleen McLoughlin, MDFamily Medicine Physician1295846715
  42. Rebecca McMullenProfessional Counselor1871895607
  43. John McNeil, M.D.Emergency Medicine Physician1003340126
  44. Kathleen McPhail, RNRegistered Nurse1730524141
  45. Dalila McRoyCase Manager/Care Coordinator1316538747
  46. Joshua McWealthLicensed Psychiatric Technician1659763142
  47. Grant Medefind, M.D.Family Medicine Physician1437366069
  48. Anahy MedinaBehavior Technician1083544100
  49. Cassandra Medina TorresCase Manager/Care Coordinator1720878275
  50. Beleen Medina-YepezRehabilitation Practitioner1366160970

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

Merced, 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 Merced - 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 Merced 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 Merced is weighted toward Behavior Technician (332 clinicians, followed by Case Manager/Care Coordinator with 258 and Rehabilitation Practitioner with 185). 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, Merced 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, Internal Medicine Physician is the most prominent one with no provider currently listing a Merced practice address, a coverage gap Merced patients typically fill by traveling to a larger nearby hub.

For Merced 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 Merced, CA?

There are 2,836 registered healthcare providers in Merced, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Merced?

The most common specialties in Merced are Behavior Technician, Case Manager/Care Coordinator, Rehabilitation Practitioner, Licensed Vocational Nurse, Mental Health Counselor. Behavior Technician has the most providers with 332.

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.