NPPES file of Aug 9, 2026

Doctors and health care providers in Petaluma, CA

1,856 individual NPPES records list a practice address in Petaluma, 122nd of 812 California cities. The largest group is behavior technician: 549, 30% of the city's records, against 18% across California. Page 7 of 38.

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

The 8 largest groups in Petaluma

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Petaluma in California

  • Rank in California122nd of 812 cities by records
  • Share of the state0.2% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups42.5% of all records

Compared with California as a whole, Petaluma has 12.6× the state's share of other technician records and 0.26× its share of student in an organized health care education/training program records.

Providers in Petaluma, alphabetically

  1. Julie ChojnackiBehavior Technician1972261766
  2. Ralph Christensen, DENTIST DDSDentist1811003197
  3. Karen ChristiansonBehavior Technician1932679511
  4. Nataliya ChulBehavior Technician1043787666
  5. Elene Chung, L.AC.Acupuncturist1982057295
  6. Michelle Ciaravella, L.P.N.Licensed Vocational Nurse1215288477
  7. Ashley ClarkBehavior Technician1265908545
  8. Jennifer Clark, LCSWClinical Social Worker1770893786
  9. Julie Clark, MDObstetrics & Gynecology Physician1346216389
  10. Margaret Liberty ClarkMarriage & Family Therapist1538563978
  11. Robert Clark, PTPhysical Therapist1376627885
  12. Amanda ClayStudent in an Organized Health Care Education/Training Program1952060501
  13. Renisha ClayBehavior Technician1225696313
  14. Jerome ClelandMarriage & Family Therapist1255260170
  15. Pilar Cobas-WinterBehavior Analyst1407535255
  16. Erin CochrunPhysical Therapy Assistant1215641444
  17. Erin CoeCommunity Health Worker1548911969
  18. Chelsea CoffeyBehavior Technician1093529596
  19. Jeffrey Colaizzi, D.C.Chiropractor1508897430
  20. Judit Colbert, MSMarriage & Family Therapist1629421227
  21. Denicia ColemanBehavior Technician1356842728
  22. Sharmaine Collier, RNRegistered Nurse1427662584
  23. Alyssa Collins, BCBABehavior Analyst1194116400
  24. Erin Collins, LMFTMarriage & Family Therapist1033082284
  25. Karen Collins, LMFTMarriage & Family Therapist1639471741
  26. Nancy Colvin, LCSWClinical Social Worker1891028163
  27. John ConantMarriage & Family Therapist1194134890
  28. Patrick Connor JrBehavior Technician1528892163
  29. Natalie Conrad, PSYCHOLOGISTPsychologist1053748632
  30. Samantha ContrerasClinical Social Worker1679145841
  31. Morgan Conway-O'Neill, LM, CPMMidwife1063066504
  32. Martha Coogan, LMFTMarriage & Family Therapist1033003371
  33. Kellie Corcoran, MDObstetrics & Gynecology Physician1760817258
  34. Alek CordeiroBehavior Technician1255997607
  35. Timothy CorderBehavior Technician1013474709
  36. Ruby CordingleyBehavior Technician1578120192
  37. Kelly CorleyClinical Social Worker1265988893
  38. Julie Corralejo, PTAPhysical Therapy Assistant1740994524
  39. Elizabeth Correll, LMHCMental Health Counselor1235444985
  40. Brandon CortesBehavior Technician1336903814
  41. Emily Cosin, PSYDClinical Psychologist1801145099
  42. Colin Coughenour, CPTKinesiotherapist1659605574
  43. Laura Coulter, RNRegistered Nurse1447538376
  44. Tyjanique CovinBehavior Technician1659924850
  45. Brent Cox, M.D.Prescribing (Medical) Psychologist1043424237
  46. Janet Coyne, MDPediatrics Physician1710061700
  47. Scott Cozza, LCSWClinical Social Worker1750326971
  48. Miranda CraigBehavior Technician1386139475
  49. Sam CramerRehabilitation Practitioner1902370737
  50. Brooke CrawfordBehavior Technician1366360125

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

Petaluma, California appears in the CMS National Plan and Provider Enumeration System with 1,856 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 Petaluma - 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 Petaluma 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 Petaluma is weighted toward Behavior Technician (549 clinicians, followed by Marriage & Family Therapist with 185 and Counselor with 54). 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, Petaluma reports roughly 4.8 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, Addiction (Substance Use Disorder) Counselor is the most prominent one with no provider currently listing a Petaluma practice address, a coverage gap Petaluma patients typically fill by traveling to a larger nearby hub.

For Petaluma 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 Petaluma, CA?

There are 1,856 registered healthcare providers in Petaluma, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Petaluma?

The most common specialties in Petaluma are Behavior Technician, Marriage & Family Therapist, Counselor, Family Nurse Practitioner, Other Technician. Behavior Technician has the most providers with 549.

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.