NPPES file of Aug 9, 2026

Doctors and health care providers in Tarzana, CA

2,122 individual NPPES records list a practice address in Tarzana, 105th of 812 California cities. The largest group is addiction (substance use disorder) counselor: 222, 10% of the city's records, against 3% across California. Page 29 of 43.

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

Tarzana in California

  • Rank in California105th of 812 cities by records
  • Share of the state0.2% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups25% of all records

Compared with California as a whole, Tarzana has 8.8× the state's share of peer specialist records and 0.40× its share of mental health counselor records.

Providers in Tarzana, alphabetically

  1. James Ong, M.D.Specialist1912955980
  2. Alexandra Ontiveros, L.ACAcupuncturist1659739464
  3. Jessica OntiverosBehavior Technician1942938436
  4. Ashley OppenbergStudent in an Organized Health Care Education/Training Program1154870822
  5. Vincent Oriente, M.D.Specialist1730411216
  6. Carla Orieta, LCSWClinical Social Worker1205366184
  7. Joanna OrozcoAddiction (Substance Use Disorder) Counselor1326721325
  8. Josefina OrozcoCommunity Health Worker1750012936
  9. Vickie OsborneCounselor1053684068
  10. Felipe Osorio, PSSPeer Specialist1326967662
  11. Jason Oster, CCAPPAddiction (Substance Use Disorder) Counselor1265032932
  12. Gina Ostermann, M.D.Child & Adolescent Psychiatry Physician1255597878
  13. Jessie OstroveDoula1386587319
  14. Jacalyn Ostrove-Greenberg, LMFTMental Health Counselor1326064841
  15. Hibaa OunisFamily Medicine Physician1033678164
  16. Garo Ourfalian, DDSGeneral Practice Dentistry1952506503
  17. Tye Ouzounian, MDOrthopaedic Surgery Physician1902876709
  18. Derick OwensBehavior Technician1821942483
  19. Alison Owens-HillMarriage & Family Therapist1851142988
  20. Jordan PaceBehavior Technician1144910068
  21. Gabrielle Pacheco, M.AStudent in an Organized Health Care Education/Training Program1487229993
  22. Luis PadillaPeer Specialist1376328286
  23. Rogelio PahuaPeer Specialist1043085970
  24. Oscar Pakier, M.D.Psychiatry Physician1447320304
  25. Crystal Palacios, MED., BCBABehavior Analyst1730542655
  26. Monica PalomoAddiction (Substance Use Disorder) Counselor1174821656
  27. Nicholas Panagiotis, M.D.Specialist1255313458
  28. Victoria Panahpour, BEHAVIORAL THERAPISTBehavior Analyst1124757778
  29. Shayna ParikhAddiction (Substance Use Disorder) Counselor1275492449
  30. Kenneth Parker, PH.D.Psychologist1407942030
  31. Matthew PartidaPeer Specialist1720850977
  32. Dwight Partner, NURSE PRACTIONERFamily Nurse Practitioner1528299229
  33. Armine PashyanFamily Nurse Practitioner1619397171
  34. Ketan Patel, MDPlastic Surgery Physician1033344817
  35. Mayank Patel, M.D.Urology Physician1669637013
  36. Sachi PatelPhysical Therapist1659010536
  37. Shreya PatelBehavior Technician1821782848
  38. Robert Patterson, D.C.Sports Physician Chiropractor1063418259
  39. Shirley PattonAddiction (Substance Use Disorder) Counselor1366649329
  40. Tanya Paul, PA-CPhysician Assistant1164564746
  41. Branden Paulson, RADTAddiction (Substance Use Disorder) Counselor1720855869
  42. April PaulusPeer Specialist1386419075
  43. Lucia Paxton, D.D.S.Dentist1710107487
  44. Adrian PayneAddiction (Substance Use Disorder) Counselor1043349392
  45. Daniela Paz AlfaroBehavior Technician1710739925
  46. Marie-Therese Pean, M.D.Specialist1912936683
  47. Christopher Pearson, AMFTBehavior Technician1962710889
  48. Corey PearsonPsychologist1760055909
  49. Jamie Peglow, LVNLicensed Vocational Nurse1972987295
  50. Miriam Peguero Vega, MSN, RNRegistered Nurse1821955311

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

Tarzana, California appears in the CMS National Plan and Provider Enumeration System with 2,122 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 Tarzana - 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 Tarzana 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 Tarzana is weighted toward Addiction (Substance Use Disorder) Counselor (222 clinicians, followed by Behavior Technician with 178 and Marriage & Family Therapist with 131). 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, Tarzana reports roughly 5.4 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.

For Tarzana 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 Tarzana, CA?

There are 2,122 registered healthcare providers in Tarzana, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Tarzana?

The most common specialties in Tarzana are Addiction (Substance Use Disorder) Counselor, Behavior Technician, Marriage & Family Therapist, Behavior Analyst, Student in an Organized Health Care Education/Training Program. Addiction (Substance Use Disorder) Counselor has the most providers with 222.

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.