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 19 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. Lisa Laidlaw, FNPFamily Nurse Practitioner1922513548
  2. Adamane Lalith Mohan, M.D.Cardiovascular Disease Physician1982893582
  3. Justin Lalonde, PTPhysical Therapist1629584263
  4. Amanda Lam, MDBehavior Technician1861981946
  5. Kiely LamBehavior Technician1578366506
  6. Liana Lam, O.D.Optometrist1437291028
  7. Mary Lamb, RDRegistered Dietitian1841352473
  8. Kathie LanattiMarriage & Family Therapist1265594360
  9. Melissa LandermanBehavior Technician1922567981
  10. Jennifer Lane, MS, RDNRegistered Dietitian1124792957
  11. Meliea Lane, FNPFamily Nurse Practitioner1700993334
  12. Richard Lane, DDSGeneral Practice Dentistry1740311406
  13. Stephanie LanfairBehavior Technician1992695191
  14. Suzanne Lange, RPHPharmacist1790158442
  15. Kayla LangoBehavior Technician1073349718
  16. Jasmine LappinBehavior Technician1083492417
  17. Jonathan LapsleyBehavior Technician1831046960
  18. Jeffrey Larsen, HS3Other Technician1598830655
  19. Jim Larsen, D.C.Chiropractor1518943489
  20. Steven Laska, MFTMarriage & Family Therapist1962280354
  21. Nicholas LauPharmacist1679909196
  22. Ronald Lavigna, DPMPodiatrist1114092046
  23. Shane LavinOccupational Medicine Physician1538584982
  24. Tanoya LawBehavior Technician1881249159
  25. Colleen LawrenceCounselor1851708952
  26. Suzanne Lawrence, RN, MSN, FNPFamily Nurse Practitioner1841331758
  27. Nicole LeaMental Health Counselor1750966560
  28. Delia Leannan, L.AC., R.N.Acupuncturist1851681126
  29. Jason Lechner, LMFT 51079Marriage & Family Therapist1073640314
  30. Chaemin LeeSpeech-Language Pathologist1841998887
  31. Diana LeeAdult Reconstructive Orthopaedic Surgery Physician1568993004
  32. Harine LeePharmacist1649983172
  33. Austin LegerBehavior Technician1831991850
  34. Cassandra LeggBehavior Technician1902307994
  35. Kacey Legnitto, MS, RD, CEDRDRegistered Dietitian1689104606
  36. Susanna LegorretaBehavior Technician1780140004
  37. Audra Lehman, M.D.Family Medicine Physician1063404762
  38. Kenneth Lehrman, M.D.Cardiovascular Disease Physician1518965490
  39. Susan LeidySpeech-Language Pathologist1245647270
  40. Brian Lemesh, D.C.Chiropractor1164569927
  41. Michael Lennon, MDInternal Medicine Physician1093893596
  42. Veronika Lenzi, CMLDT, CMTMassage Therapist1871131656
  43. Michelle LeonardHealth Information Technician1023425295
  44. James Leoni, M.D.Family Medicine Physician1205936861
  45. Peter Leoni, M.D.Surgery Physician1316907082
  46. Douglas Lerch, MFTMarriage & Family Therapist1851830293
  47. Katherine Leroy, LMFTMental Health Counselor1649801010
  48. Richard Lesch, PHDClinical Psychologist1649210691
  49. Anastasia Lester, DDSGeneral Practice Dentistry1659835643
  50. Amanda LeungBehavior Technician1649737164

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.