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 2)

Name
Julia Cornish
Behavior Technician
Jennifer Cuellar
Behavior Technician
Edith Daniels
Attendant Care Provider
Charles Davidson, DC
Chiropractor
Elizabeth Davis, BSN
Home Health Registered Nurse
Leocarlo De Castro
Nurse Practitioner
Elmer De Leon, DDS
Dentist
Phinnillipa Degruy
Counselor
Gilad Dekel, R.PH.
Pharmacist
Thomas Desimio, RN
Infusion Therapy Registered Nurse
Fran Didomenicis, PH.D.
Psychologist
Heather Divine
Behavior Technician
Manuel Dizon, D.C.
Chiropractor
Amrit Dosanjh
Behavior Analyst
McWayne Enad
Registered Respiratory Therapist
Gary Eng
Occupational Therapist
Geraldine Enriquez-Louie, RRT
Registered Respiratory Therapist
Jose Enz, MD
Pediatrics Physician
Trina Erby, LMFT
Counselor
Angala Erickson-Wernhardt
Behavior Technician
Maria Escalada, M.D.
Family Medicine Physician
Maria Escobedo
Behavior Analyst
Melany Esperanza
Behavior Technician
Leona Rei Fernandez
Behavior Analyst
Andres Fidel-Emmanuel, CMT
Massage Therapist
Sabrina Figueroa
Behavior Analyst
John Firkus, PHD
Psychologist
Emily Fong, L.AC
Acupuncturist
Loraine Franks, M.D.
Pediatric Hematology & Oncology Physician
Lizette Garcia Barboza
Behavior Technician
Wayne Garrett, DO
Anatomic Pathology Physician
Esther Gaskin
Registered Nurse
Loretta George
Behavior Technician
Marquis Gillette
Behavior Technician
Katherine Giron
Behavior Technician
Samantha Giron Medina
Behavior Technician
Josselin Gomez
Behavior Technician
Valerie Gomez
Behavior Analyst
Mario Gonzales, OD
Optometrist
Cynthia Gonzalez
Behavior Technician
Daiana Gonzalez
Behavior Technician
Daniela Gonzalez
Behavior Technician
Laura Greene, DPT
Physical Therapist
Bohan Gu, PHARMD
Pharmacist
Natalia Guerrero
Behavior Technician
Katylynn Guglielmo
Behavior Analyst
Shanice Guidry
Student in an Organized Health Care Education/Training Program
Daniela Guzman
Behavior Analyst
Stephanie Guzman Alvarez
Mental Health Counselor
Jerena Hammad
Continence Care 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 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.