Doctors and health care providers in Napa, CA
3,583 individual NPPES records list a practice address in Napa, 63rd of 812 California cities. The largest group is behavior technician: 990, 28% of the city's records, against 18% across California. Page 40 of 72.
The 8 largest groups in Napa
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Napa in California
- Rank in California63rd of 812 cities by records
- Share of the state0.4% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups37% of all records
Compared with California as a whole, Napa has 4.4× the state's share of licensed psychiatric technician records and 0.28× its share of student in an organized health care education/training program records.
Providers in Napa, alphabetically
- Dareyus MarananBehavior Technician1275212367
- Kathleen Rae Marcelo, DDSGeneral Practice Dentistry1164951075
- Karla Marchbanks Onofre, PSYDForensic Psychologist1457643868
- Claudia MaresMental Health Counselor1487729927
- Armida Mares RamosMechanotherapist1770320640
- Pamela Marietti, O.T.Occupational Therapist1245903178
- Adrienne Marilla, MSW, OTD, OTR/LOccupational Therapist1568715266
- Guadalupe Marin Giraldo, R.N.Registered Nurse1699008292
- Maria Marin-ChavezCase Manager/Care Coordinator1487360491
- Carolina MariposaMarriage & Family Therapist1679776322
- Sharon Marks, L.C.S.W.Clinical Social Worker1972585172
- Mindy Marquez, MDUrology Physician1841239928
- Nadia MarquezBehavior Technician1205668365
- Nancy MarquezMental Health Counselor1538234067
- Marquita Marquis, R.N.Administrator Registered Nurse1770638611
- Melissa Marrapese, PHDPsychologist1164755674
- Monaye MarshallBehavior Technician1275383390
- Toni Martello, M.D.Psychiatry Physician1801157920
- Jacqueline MartinPhysical Therapist1093685976
- James MartinAddiction (Substance Use Disorder) Counselor1497026710
- Jennifer Martin, MS, ATCAthletic Trainer1235874231
- Michelle Martin, MDPsychiatry Physician1164474938
- Robert Martin, DDSGeneral Practice Dentistry1821190943
- Ronishia MartinCase Manager/Care Coordinator1578147468
- Ariana MartinezRegistered Nurse1407431737
- Ashley MartinezCommunity Health Worker1851133839
- Berenice MartinezBehavior Technician1467226118
- Briana MartinezDay Training/Habilitation Specialist1053155259
- Carlos MartinezBehavior Technician1396518445
- Daniel Martinez, PT, DPTPhysical Therapist1134725617
- David Martinez, DOFamily Medicine Physician1023105178
- Jason MartinezCase Manager/Care Coordinator1669251591
- Jose MartinezAddiction (Substance Use Disorder) Counselor1174806541
- Jossilyn MartinezBehavior Technician1578409637
- Karen MartinezLicensed Vocational Nurse1245018316
- Lizeth MartinezMarriage & Family Therapist1811232325
- Lnira MartinezBehavior Technician1295495893
- Maribel MartinezAddiction (Substance Use Disorder) Counselor1316377344
- Marla MartinezBehavior Technician1154188175
- Mary Ann Martinez, OTR/L, CHTOccupational Therapist1265623029
- Selina Martinez, DOFamily Medicine Physician1003565185
- Yelena MartinezBehavior Technician1538868039
- Yelena Martinez, PHARMDPharmacist1376374819
- Yesiedid MartinezBehavior Technician1043964265
- Angel Martinez De La CruzBehavior Technician1942982491
- Adriana Martinez-ChavezClinical Social Worker1386794238
- Douglass Marum, PHD MARRIAGE AND FAMMarriage & Family Therapist1598948523
- Timberlin MarziBehavior Technician1083481790
- Maris Maslow-ShieldsBehavior Technician1801601539
- Daniel Masluk, M.D.Anesthesiology Physician1619906708
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Napa, California appears in the CMS National Plan and Provider Enumeration System with 3,583 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 Napa - 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 Napa 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 Napa is weighted toward Behavior Technician (990 clinicians, followed by Marriage & Family Therapist with 187 and Clinical Social Worker with 147). 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, Napa reports roughly 9.2 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, Behavior Analyst is the most prominent one with no provider currently listing a Napa practice address, a coverage gap Napa patients typically fill by traveling to a larger nearby hub.
For Napa 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 Napa, CA?
There are 3,583 registered healthcare providers in Napa, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Napa?
The most common specialties in Napa are Behavior Technician, Marriage & Family Therapist, Clinical Social Worker, Case Manager/Care Coordinator, Clinical Psychologist. Behavior Technician has the most providers with 990.
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.