2026 data CMS NPPES NUCC Taxonomy

Doctors in Hercules, CA

Compiled from official public sources by the PlainDoctor editorial team.

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

252
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Behavior Technician
Top specialty
93 providers
California
State
CA

252 healthcare providers across 20 specialties

Hercules, California appears in the CMS National Plan and Provider Enumeration System with 252 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 Hercules - 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 Hercules 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 Hercules is weighted toward Behavior Technician (93 clinicians, followed by Pharmacist with 14 and Behavior Analyst with 14). 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, Hercules reports roughly 0.6 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.

Within California, Hercules ranks #366 of 805 cities tracked by provider count, accounting for <0.1% of the state's registered providers. Of California's most common specialties, Addiction (Substance Use Disorder) Counselor is the most prominent one with no provider currently listing a Hercules practice address, a coverage gap Hercules patients typically fill by traveling to a larger nearby hub.

For Hercules 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.

252
Providers
20
Specialties
#366
of 805 CA cities
<0.1%
of CA providers
0.6
Per 100K (state)

Which specialties are most common in Hercules

Behavior Technician 93
Pharmacist 14
Behavior Analyst 14
Optometrist 8
General Practice Dentistry 8
Dentist 8
Student in an Organized Health Care Education/Training Program 6
Mental Health Counselor 6
Counselor 6
Physical Therapist 5
Registered Nurse 5
Chiropractor 5
Acupuncturist 4
Clinical Social Worker 4
Doula 3
Massage Therapist 3
Pediatrics Physician 3
Specialist 3
Marriage & Family Therapist 3
Attendant Care Provider 2

Healthcare Providers (Page 4)

Name
Magdalena Martinez
Behavior Technician
Michael Martinez
Behavior Technician
Ellen Marzan, D.C.
Chiropractor
Mencita Masangkay, DMD
General Practice Dentistry
Lita Matibag, LVN
Licensed Vocational Nurse
Wendy Mazursky, PA-C, MS
Surgical Physician Assistant
Cristian Medal
Student in an Organized Health Care Education/Training Program
Christian Medina
Behavior Analyst
Laylah Melgoza-Rojas
Behavior Technician
Michelle Mendler
Behavior Analyst
Sthefanny Meneses
Behavior Technician
Amanda Messina-Godfrey, BCBA 1-18-29787
Behavior Analyst
Michael Messina-Godfrey
Behavior Technician
Antonia Miller
Behavior Technician
Colin Miller
Mental Health Counselor
Garrett Milner, O.D.
Optometrist
Imelda Milo, PT
Physical Therapist
Mariah Minjares
Behavior Technician
Karina Monroy
Behavior Technician
Chrystale Monzon
Behavior Technician
Elizabeth Mora, D.D.S.
General Practice Dentistry
Myleyby Mora
Behavior Technician
Pilar Moreno
Behavior Technician
Devyn Morris
Behavior Technician
Shawntanea Moten
Behavior Technician
Kayley Munoz
Behavior Technician
Dawn Murray
Counselor
Hasib Mustamandi
Behavior Technician
Leonard Newman, MD
Ophthalmology Physician
Ronald Newman, D.C.
Chiropractor
Darren Ng, O.D.
Optometrist
Thang Nguyen, DDS
General Practice Dentistry
Johnathan Nilsen, RPH
Pharmacist
Kristine Nishi
Social Worker
Jessalyn Nothnagel
Behavior Technician
Ogochukwu Nwosu, DNP, FNP-BC,PMHNP-BC
Psychiatric/Mental Health Nurse Practitioner
Jonathan Okman, M.D.
Dermatology Physician
Evelina Olson
Adult Medicine Physician
Edna Opong-Mensah, RN
Case Management Registered Nurse
Juliana Orellana
Behavior Technician
Manuella Orsi
Doula
Helen Paek, O.D.
Optometrist
Franz Panganiban
Attendant Care Provider
Iraselma Paniagua
Behavior Technician
Joyce Penalver
Marriage & Family Therapist
Natalie Perez
Behavior Technician
Andrea Perez Portillo
Counselor
Oksana Peters, PA
Physician Assistant
Helaine Pleet, MD MPH
Pediatrics Physician
Ramesha Powell
Behavior Technician

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 Hercules, CA?
There are 252 registered healthcare providers in Hercules, CA, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Hercules?
The most common specialties in Hercules are Behavior Technician, Pharmacist, Behavior Analyst, Optometrist, General Practice Dentistry. Behavior Technician has the most providers with 93.

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 PlainDoctor editorial team.

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.