NPPES file of Aug 9, 2026

Doctors and health care providers in Martinez, CA

1,816 individual NPPES records list a practice address in Martinez, 127th of 812 California cities. The largest group is family medicine physician: 191, 11% of the city's records, against 2% across California. Page 32 of 37.

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

Martinez in California

  • Rank in California127th of 812 cities by records
  • Share of the state0.2% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups23.8% of all records

Compared with California as a whole, Martinez has 32.9× the state's share of case management registered nurse records and 0.19× its share of behavior technician records.

Providers in Martinez, alphabetically

  1. Jennifer Stanziale, MDHospitalist Physician1215467543
  2. Maranda Starczewski, MFTMarriage & Family Therapist1245504372
  3. Robert Starkey, PSY.D.Clinical Psychologist1336336387
  4. Jenni Stein, PHARM.DPharmacist1861729717
  5. Angela Steinhart, OTR/LOccupational Therapist1790218006
  6. Cathy SteirnFamily Nurse Practitioner1356428015
  7. Christina Stelly, RN, DNP, PMHNPPsychiatric/Mental Health Nurse Practitioner1033767207
  8. Laura Stephens, PHNCase Management Registered Nurse1043535875
  9. Raul Stephens, CAADAC IIAddiction (Substance Use Disorder) Counselor1487076139
  10. Rhonda Stephens, RDRegistered Dietitian1750440160
  11. Linda StephensonFamily Nurse Practitioner1356493266
  12. Glen StewartClinical Pathology/Laboratory Medicine Physician1417016742
  13. Jill Stewart, LMFTMarriage & Family Therapist1205352325
  14. David Stone, MDFamily Medicine Physician1114152857
  15. Laylonnie Stone, CNANurse's Aide1619381282
  16. Sian Stone, SLPASpeech-Language Assistant1619681350
  17. Deborah Strych, NPFamily Medicine Physician1881754752
  18. Anna Stubbs, DO, MPHStudent in an Organized Health Care Education/Training Program1518800366
  19. Stacy Studebaker, LCSWClinical Social Worker1033182621
  20. David Suchow, MDEmergency Medicine Physician1558457531
  21. Eduardo SudanoStudent in an Organized Health Care Education/Training Program1659102119
  22. Eleanor Sullivan, MDFamily Medicine Physician1710503925
  23. Gabriela Sullivan, MDInternal Medicine Physician1275620023
  24. Kathleen SullivanRegistered Nurse1295915627
  25. Chloe Sun, PHARMDPharmacist1316315492
  26. Joanne Supersad, MDPediatric Adolescent Medicine Physician1013096148
  27. Blesilda Surio, R.N.Administrator Registered Nurse1578924114
  28. Sonia SutherlandInternal Medicine Physician1770785867
  29. Valentine Sviatocha, DDSEndodontics1972881068
  30. Camille Swain, LESpecialist1801611199
  31. Emma Swan, MDInternal Medicine Physician1386904100
  32. George Swanson, DDSGeneral Practice Dentistry1235158502
  33. Barbara SwarzenskiPsychiatry Physician1497823066
  34. Elaine Swenson, RN, PHNCase Management Registered Nurse1073794558
  35. William Swenson, RN, PHNCase Management Registered Nurse1376711069
  36. Arthur Swislocki, M.D.Endocrinology, Diabetes & Metabolism Physician1043294705
  37. Magdalena Tadlock, RN, PHNCase Management Registered Nurse1356522015
  38. Fred TaguiranPeer Specialist1205082294
  39. Denice TaiFamily Medicine Physician1164603064
  40. Caitlin Takeda, MDStudent in an Organized Health Care Education/Training Program1407696453
  41. Kiki TaliaferroMarriage & Family Therapist1740707009
  42. Nitin Tallam, MDPain Medicine (Physical Medicine & Rehabilitation) Physician1689170516
  43. Lance TambotPsychiatric/Mental Health Registered Nurse1982443552
  44. Tom TamuraMarriage & Family Therapist1780754051
  45. Lorelei Tan, MDFamily Medicine Physician1508914532
  46. Edward Tang, M.D.Orthopaedic Surgery Physician1114124369
  47. Joyce Tang, MDFamily Medicine Physician1689903171
  48. Yasamin Tarassoli, DMDDentist1245565159
  49. Ernest Tark, MDOphthalmology Physician1841268547
  50. Shahla TavanaOrthodontics and Dentofacial Orthopedics Dentistry1558424721

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

Martinez, California appears in the CMS National Plan and Provider Enumeration System with 1,816 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 Martinez - 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 Martinez 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 Martinez is weighted toward Family Medicine Physician (191 clinicians, followed by Pharmacist with 149 and Marriage & Family Therapist with 93). 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, Martinez reports roughly 4.7 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, Behavior Analyst is the most prominent one with no provider currently listing a Martinez practice address, a coverage gap Martinez patients typically fill by traveling to a larger nearby hub.

For Martinez 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 Martinez, CA?

There are 1,816 registered healthcare providers in Martinez, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Martinez?

The most common specialties in Martinez are Family Medicine Physician, Pharmacist, Marriage & Family Therapist, Student in an Organized Health Care Education/Training Program, Case Management Registered Nurse. Family Medicine Physician has the most providers with 191.

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.