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.
The 8 largest groups in Tarzana
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
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
- James Ong, M.D.Specialist1912955980
- Alexandra Ontiveros, L.ACAcupuncturist1659739464
- Jessica OntiverosBehavior Technician1942938436
- Ashley OppenbergStudent in an Organized Health Care Education/Training Program1154870822
- Vincent Oriente, M.D.Specialist1730411216
- Carla Orieta, LCSWClinical Social Worker1205366184
- Joanna OrozcoAddiction (Substance Use Disorder) Counselor1326721325
- Josefina OrozcoCommunity Health Worker1750012936
- Vickie OsborneCounselor1053684068
- Felipe Osorio, PSSPeer Specialist1326967662
- Jason Oster, CCAPPAddiction (Substance Use Disorder) Counselor1265032932
- Gina Ostermann, M.D.Child & Adolescent Psychiatry Physician1255597878
- Jessie OstroveDoula1386587319
- Jacalyn Ostrove-Greenberg, LMFTMental Health Counselor1326064841
- Hibaa OunisFamily Medicine Physician1033678164
- Garo Ourfalian, DDSGeneral Practice Dentistry1952506503
- Tye Ouzounian, MDOrthopaedic Surgery Physician1902876709
- Derick OwensBehavior Technician1821942483
- Alison Owens-HillMarriage & Family Therapist1851142988
- Jordan PaceBehavior Technician1144910068
- Gabrielle Pacheco, M.AStudent in an Organized Health Care Education/Training Program1487229993
- Luis PadillaPeer Specialist1376328286
- Rogelio PahuaPeer Specialist1043085970
- Oscar Pakier, M.D.Psychiatry Physician1447320304
- Crystal Palacios, MED., BCBABehavior Analyst1730542655
- Monica PalomoAddiction (Substance Use Disorder) Counselor1174821656
- Nicholas Panagiotis, M.D.Specialist1255313458
- Victoria Panahpour, BEHAVIORAL THERAPISTBehavior Analyst1124757778
- Shayna ParikhAddiction (Substance Use Disorder) Counselor1275492449
- Kenneth Parker, PH.D.Psychologist1407942030
- Matthew PartidaPeer Specialist1720850977
- Dwight Partner, NURSE PRACTIONERFamily Nurse Practitioner1528299229
- Armine PashyanFamily Nurse Practitioner1619397171
- Ketan Patel, MDPlastic Surgery Physician1033344817
- Mayank Patel, M.D.Urology Physician1669637013
- Sachi PatelPhysical Therapist1659010536
- Shreya PatelBehavior Technician1821782848
- Robert Patterson, D.C.Sports Physician Chiropractor1063418259
- Shirley PattonAddiction (Substance Use Disorder) Counselor1366649329
- Tanya Paul, PA-CPhysician Assistant1164564746
- Branden Paulson, RADTAddiction (Substance Use Disorder) Counselor1720855869
- April PaulusPeer Specialist1386419075
- Lucia Paxton, D.D.S.Dentist1710107487
- Adrian PayneAddiction (Substance Use Disorder) Counselor1043349392
- Daniela Paz AlfaroBehavior Technician1710739925
- Marie-Therese Pean, M.D.Specialist1912936683
- Christopher Pearson, AMFTBehavior Technician1962710889
- Corey PearsonPsychologist1760055909
- Jamie Peglow, LVNLicensed Vocational Nurse1972987295
- Miriam Peguero Vega, MSN, RNRegistered Nurse1821955311
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
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.