2026 data CMS NPPES NUCC Taxonomy

Doctors in Martinez, CA

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

1,781
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Family Medicine Physician
Top specialty
175 providers
California
State
CA

1,781 healthcare providers across 20 specialties

Martinez, California appears in the CMS National Plan and Provider Enumeration System with 1,781 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 Martinez — 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 Martinez practice location on file.

The provider mix in Martinez is weighted toward Family Medicine Physician (175 clinicians, followed by Pharmacist with 155 and Student in an Organized Health Care Education/Training Program with 77). 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, Martinez reports roughly 4.6 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 Martinez 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 NPPES data is self-reported and refreshed monthly, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.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.

1,781
Providers
20
Specialties
4.6
Per 100K (state)

Which specialties are most common in Martinez

Family Medicine Physician 175
Pharmacist 155
Student in an Organized Health Care Education/Training Program 77
Marriage & Family Therapist 75
Registered Nurse 70
Behavior Technician 61
Case Management Registered Nurse 60
Clinical Social Worker 56
Mental Health Counselor 51
Physical Therapist 48
Addiction (Substance Use Disorder) Counselor 47
Internal Medicine Physician 45
Community Health Worker 45
Family Nurse Practitioner 44
Day Training/Habilitation Specialist 40
Psychiatry Physician 32
Licensed Vocational Nurse 27
Occupational Therapist 26
Dentist 25
Social Worker 24

Healthcare Providers (Page 24)

Name
JULIE NEFKENS, MD
Occupational Medicine Physician
JEANENE NEHIRA, PHARMD
Pharmacist
EVELYN NELSON
Case Manager/Care Coordinator
JOHN NELSON, M.D.
Family Medicine Physician
KAAREN NELSON-MUNSON, MD
Family Medicine Physician
PATRICE NEWELL
Registered Nurse
EMILY NEWFIELD, MD
Obstetrics & Gynecology Physician
LINDSAY NEWSOM
Pharmacist
CYNTHIA NG, RD
Registered Dietitian
NHU NG, PHARMD
Pharmacist
ANDREW NGUYEN, MD
Physical Medicine & Rehabilitation Physician
CASSANDRA NGUYEN
Mental Health Counselor
CECILIA NGUYEN, R.PH.
Pharmacist
DAI NGUYEN, PHARM. D
Pharmacist
ISABEL NGUYEN
Pharmacist
KHAI NGUYEN, PHARMD
Pharmacist
KHANG NGUYEN
Student in an Organized Health Care Education/Training Program
STEVEN NGUYEN, PHARMD
Pharmacist
THUY TRANG NGUYEN
Pharmacist
TUNG NGUYEN, O.D
Optometrist
UT NGUYEN
Pharmacist
VI NGUYEN
Registered Nurse
CONSTANTINE NICHOLAS, MD
Orthopaedic Surgery Physician
ZACHARY NICHOLAS, M.D.
Family Medicine Physician
MARIANNE NICHOLSON
Physical Therapist
JOELLE NITTA
Pharmacist
LISA NORIEGA
Community Health Worker
JOSHUA NORRIS
Day Training/Habilitation Specialist
DAHLIA NORRY, MD
Family Medicine Physician
JABARI NURSE STERLING
Psychiatric/Mental Health Registered Nurse
SUSAN NYSER, LVN
Licensed Vocational Nurse
TIFFANY O'CONNELL, LPN
Licensed Practical Nurse
ANNA O'CONNOR, MSW, LCSW
Clinical Social Worker
LARRY O'CONNOR, MD
Diagnostic Radiology Physician
KELCEE O'DANIEL, ASW
Social Worker
NANA O'DONNELL
Clinical Neuropsychologist
BRIAN O'NEILL, M.D.
Internal Medicine Physician
AMY OCHENDUSZKO
Student in an Organized Health Care Education/Training Program
MARIA JENNIFER OCULAR
Registered Nurse
GARY ODA, O.D.
Optometrist
WILLIAM OFSTAD, PHARMD
Pharmacist
JENNIFER OGAR, M.S.
Speech-Language Pathologist
PETER OH, PHARM.D
Pharmacist
AYLA OHANLON
Addiction (Substance Use Disorder) Counselor
JOON-HA OK, M.D.
Urology Physician
SHELLEY OKEY
Marriage & Family Therapist
CHIKE OKOLO, PHARM.D
Pharmacotherapy Pharmacist
MORAYO OLATUNBOSUN, NP
Family Nurse Practitioner
MICHAEL OLAVIDES
Physical Therapist
NANCY OLIVEROS
Case Management Registered Nurse

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 Martinez, CA?
There are 1,781 registered healthcare providers in Martinez, CA, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Martinez?
The most common specialties in Martinez are Family Medicine Physician, Pharmacist, Student in an Organized Health Care Education/Training Program, Marriage & Family Therapist, Registered Nurse. Family Medicine Physician has the most providers with 175.

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.