Doctors and health care providers in Montclair, CA
1,301 individual NPPES records list a practice address in Montclair, 164th of 812 California cities. The largest group is behavior technician: 868, 67% of the city's records, against 18% across California. Page 18 of 27.
The 8 largest groups in Montclair
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Montclair in California
- Rank in California164th of 812 cities by records
- Share of the state0.1% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups72.5% of all records
Compared with California as a whole, Montclair has 10.4× the state's share of health & wellness coach records and 0.16× its share of marriage & family therapist records.
Providers in Montclair, alphabetically
- Corazon Navarro, MDObstetrics & Gynecology Physician1821139650
- Jonathan NavarroHealth & Wellness Coach1003617465
- Kathryn NavorBehavior Technician1659845287
- Ruth Neigut, MA CCC-SLPSpeech-Language Pathologist1821764234
- Danielle NewmanBehavior Technician1063266450
- Madison NewmanBehavior Technician1043917735
- Amanda NguyenBehavior Technician1407406424
- David Nguyen, DOFamily Medicine Physician1669961801
- John Nguyen, D.D.S.Dentist1548512205
- Jucy NguyenBehavior Technician1285214312
- Trang Nguyen, DDSDentist1639060288
- Monique NieblaBehavior Technician1144921396
- Jeimy NolascoBehavior Technician1922850874
- Brianna NunoBehavior Technician1023798865
- Mary O'BrienBehavior Technician1578262606
- Mandel O'NeilHealth & Wellness Coach1750260527
- Edgar ObandoBehavior Technician1306554852
- Celestine ObinnaBehavior Technician1528690880
- Evelyn OcampoSocial Worker1851649024
- Nayive OcampoBehavior Technician1558187591
- Kristine OcanaBehavior Technician1366165151
- Rosa Ocegueda, ASW73155Clinical Social Worker1336890516
- Stavros OfeidisBehavior Technician1316611148
- Joy Ofo, PAPhysician Assistant1396960357
- Anthony Oh, MDSurgery Physician1154401354
- Camiar Ohadi, M.DDiagnostic Radiology Physician1063582112
- Andrew OjedaHealth & Wellness Coach1497632434
- Egheosa OkontaBehavior Technician1528786845
- Natalie OlivasBehavior Technician1144953407
- Valerie OlivasBehavior Technician1245001825
- Shelsey OlivoBehavior Technician1700508363
- Gabriela OlmosBehavior Technician1831732569
- Viridiana OlveraBehavior Technician1659014322
- Breanna OntiverosBehavior Technician1669131934
- Renee OntiverosBehavior Technician1023884160
- Stephanie Ordaz ZepedaBehavior Technician1285315945
- Brenda OrellanaStudent in an Organized Health Care Education/Training Program1710597893
- Juan OrozcoBehavior Technician1356041511
- Yesenia OrozcoBehavior Technician1437983459
- Oscar OrtaHealth & Wellness Coach1396622361
- Arlen OrtegaBehavior Technician1801435805
- Julio Ortega, D.D.S.Dentist1174816870
- Selena OrtegaBehavior Technician1982328993
- Alejandro OrtizOccupational Therapist1245837798
- Gloria OrtizBehavior Technician1942832217
- Kimberly OrtizBehavior Technician1497471957
- Raeanna OrtizBehavior Technician1467088112
- Victoria OrtizBehavior Technician1851015853
- Zamire OsbyBehavior Technician1871211185
- Mia OsegueraBehavior Technician1467167254
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Montclair, California appears in the CMS National Plan and Provider Enumeration System with 1,301 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 Montclair - 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 Montclair 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 Montclair is weighted toward Behavior Technician (868 clinicians, followed by Student in an Organized Health Care Education/Training Program with 47 and Health & Wellness Coach with 28). 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, Montclair reports roughly 3.3 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, Mental Health Counselor is the most prominent one with no provider currently listing a Montclair practice address, a coverage gap Montclair patients typically fill by traveling to a larger nearby hub.
For Montclair 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 Montclair, CA?
There are 1,301 registered healthcare providers in Montclair, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Montclair?
The most common specialties in Montclair are Behavior Technician, Student in an Organized Health Care Education/Training Program, Health & Wellness Coach, Pharmacist, Case Manager/Care Coordinator. Behavior Technician has the most providers with 868.
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.