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 31 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. Ajay Shenoy, RDNRegistered Dietitian1134098056
  2. Neal SheranFamily Medicine Physician1386074524
  3. Chiyo Shidara, D.D.S.Dentist1558510156
  4. Marie Shimoniak, MS, RD, CNSDRegistered Dietitian1306058367
  5. Jill Shinn, LMFTMarriage & Family Therapist1154848208
  6. Jennifer Shrestha, MDFamily Medicine Physician1427439967
  7. Alan Siegel, M.D.Family Medicine Physician1063579860
  8. Lorenzo SierraMarriage & Family Therapist1881245306
  9. Luz SierraCase Manager/Care Coordinator1588846992
  10. Daniel Silva, PSY.D.Clinical Psychologist1932842853
  11. Stacy Silva, D.D.S.Orthodontics and Dentofacial Orthopedics Dentistry1073856522
  12. Joanna Silverman, RCPRegistered Respiratory Therapist1144784091
  13. Lisa Simms, RNRegistered Nurse1407092356
  14. Ari Simon, DOFamily Medicine Physician1659865897
  15. Anissa SimsMarriage & Family Therapist1841729464
  16. Amandeep Singh, PHARMDPharmacist1962357251
  17. Brandy Singh, NPFamily Nurse Practitioner1871934109
  18. Joycelin SinghCertified Respiratory Therapist1992269989
  19. Rubina SinghRegistered Nurse1073483244
  20. Nanda SinhaSurgery Physician1659441749
  21. Eliyah SipsyBehavior Technician1336720333
  22. Debra Sisson, RNRegistered Nurse1881088920
  23. Alex SiuPharmacist1306305966
  24. Ann Skradski, GNPGerontology Nurse Practitioner1285696542
  25. Dana SlausonFamily Medicine Physician1700930658
  26. Jane Sliheet, AU.D.Audiologist1700804390
  27. Khyiana Slone, LVNLicensed Vocational Nurse1831867050
  28. Hayley Smart, MS, RDRegistered Dietitian1750683009
  29. Caitlin SmithPsychiatry Physician1821670159
  30. Carlton Smith, LCSWSocial Worker1598944951
  31. Chelsea SmithDay Training/Habilitation Specialist1578218848
  32. Jeffrey SmithSurgery Physician1861575896
  33. Kaitlin SmithAddiction (Substance Use Disorder) Counselor1487480091
  34. Ocie SmithBehavior Technician1225595374
  35. Shayna SmithAddiction (Substance Use Disorder) Counselor1992420061
  36. Terrell Smith, RNChild & Adolescent Psychiatric/Mental Health Registered Nurse1144714304
  37. Thomas Smith, MDFamily Medicine Physician1396820379
  38. Daniel SobelFamily Medicine Physician1588957831
  39. Marina Soler, RAS, BAAddiction (Substance Use Disorder) Counselor1972715993
  40. Jack SongFamily Medicine Physician1538342043
  41. Donna Sorensen, PHD.Clinical Neuropsychologist1760461891
  42. Nina SottoMassage Therapist1841898582
  43. Donald Spaugy, RASAddiction (Substance Use Disorder) Counselor1558486530
  44. Jane Spence, LMFTMarriage & Family Therapist1194747626
  45. Lesley SplivaloNurse Practitioner1174772941
  46. Sonia SpohrerCase Manager/Care Coordinator1851573919
  47. Charlotte StandeferFamily Medicine Physician1003973769
  48. Jessica Standish, M.D.Family Medicine Physician1790128320
  49. R Stanger, MDEmergency Medicine Physician1124118278
  50. Maria Fatima StantonMarriage & Family Therapist1649139940

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.