2026 data CMS NPPES NUCC Taxonomy

Doctors in Napa, CA

Active healthcare providers in Napa sourced from the CMS NPPES weekly file, no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.

3,475
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Behavior Technician
Top specialty
911 providers
California
State
CA

3,475 healthcare providers across 20 specialties

Napa, California appears in the CMS National Plan and Provider Enumeration System with 3,475 registered healthcare providers spanning 20 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 2023 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 (911 clinicians, followed by Marriage & Family Therapist with 163 and Mental Health Counselor with 136). 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 8.9 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.

Within California, Napa ranks #60 of 805 cities tracked by provider count, accounting for 0.4% of the state's registered providers. 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, searching by specialty narrows the 690-taxonomy roster to clinicians with the relevant training, and each provider page links to NPI, state licensing boards, and the NPPES registry for credential verification. 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, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients. Nothing on this page substitutes for consulting a licensed clinician about your personal health decisions.

3,475
Providers
20
Specialties
#60
of 805 CA cities
0.4%
of CA providers
8.9
Per 100K (state)

Which specialties are most common in Napa

Behavior Technician 911
Marriage & Family Therapist 163
Mental Health Counselor 136
Clinical Social Worker 134
Case Manager/Care Coordinator 128
Clinical Psychologist 110
Registered Nurse 106
Addiction (Substance Use Disorder) Counselor 99
Psychiatry Physician 89
Community Health Worker 86
Licensed Vocational Nurse 74
Physical Therapist 67
Student in an Organized Health Care Education/Training Program 64
Pharmacist 62
Internal Medicine Physician 59
Family Medicine Physician 58
General Practice Dentistry 51
Counselor 51
Psychologist 49
Rehabilitation Practitioner 43

Healthcare Providers (Page 25)

Name
William Grippo, D.D.S.
Periodontics
Laurie Grisham
Case Manager/Care Coordinator
Robert Grisham, D.D.S.
General Practice Dentistry
Samantha Grist
Behavior Technician
Lindsay Groff, HEARING AID DISP
Hearing Instrument Specialist
Jennifer Grogg
Case Manager/Care Coordinator
Jonathan Groschel, R.N., R.N.F.A.
Registered Nurse
Kristina Grossman, FNP
Family Nurse Practitioner
Gaye Grove, OTR/L
Occupational Therapist
Mary Groves Rossi, BC-DMT
Counselor
Demilynn Monic Grueso
Licensed Psychiatric Technician
Anthony Grybinas
Behavior Technician
Angela Guadagni, FNP
Nurse Practitioner
Myla Guadiz
Psychiatric/Mental Health Registered Nurse
Gwendolyn Guck, B.S.N
Registered Nurse
Jessica Guerra
Behavior Technician
Giovanna Guerra Ramirez
Behavior Technician
Camila Guevara
Behavior Technician
Stephen Gugenheim, M.D.
Plastic Surgery within the Head & Neck (Otolaryngology) Physician
Anthony Gugliemo
Behavior Technician
Ariana Guillory
Case Manager/Care Coordinator
Nicholas Gularte, DO
Physical Medicine & Rehabilitation Physician
Manuela Gurrola
Behavior Technician
Adriana Gutierrez, NP
Registered Nurse
Alicia Gutierrez
Mental Health Counselor
Anita Gutierrez, LCSW
Clinical Social Worker
Frida Gutierrez
Behavior Technician
Gabryel Gutierrez
Marriage & Family Therapist
Joanna Gutierrez
Student in an Organized Health Care Education/Training Program
Mariam Gutierrez, LVN
Licensed Vocational Nurse
Sylvia Gutierrez
Behavior Technician
Iksayana Gutierrez Barajas
Behavior Technician
Perla Gutierrez Pulido
Behavior Technician
Aliana Gutierrez Roman
Behavior Technician
Delia Gutierrez-Villagomez
Case Manager/Care Coordinator
Daniel Gutkind, PH.D.
Clinical Psychologist
Lori Guy
Mental Health Counselor
Brian Guzman
Behavior Technician
Citlali Guzman
Behavior Technician
Dalia Guzman
Behavior Technician
David Guzman, D.P.M.
Podiatrist
Esmeralda Guzman
Social Worker
Luis Guzman, DMD
Dentist
Randa Guzman
Behavior Technician
Rosa Guzman
Case Manager/Care Coordinator
Alan Ha, PHARMD
Pharmacist
Ferdinand Haber
Rehabilitation Practitioner
Donna Hacker
Counselor
Michael Haddad
General Practice Dentistry
Lesley Haddock
Counselor

Nearby Cities in California

Other California cities with provider coverage in the CMS NPPES registry.

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Napa, CA?
There are 3,475 registered healthcare providers in Napa, CA, covering 20 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, Mental Health Counselor, Clinical Social Worker, Case Manager/Care Coordinator. Behavior Technician has the most providers with 911.

Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-20.