Doctors and health care providers in Hercules, CA
277 individual NPPES records list a practice address in Hercules, 353rd of 812 California cities. The largest group is behavior technician: 111, 40% of the city's records, against 18% across California. Page 3 of 6.
The 8 largest groups in Hercules
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Hercules in California
- Rank in California353rd of 812 cities by records
- Share of the state<0.1% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups49.8% of all records
Compared with California as a whole, Hercules has 2.3× the state's share of behavior technician records.
Providers in Hercules, alphabetically
- Cynthia GonzalezBehavior Technician1447131271
- Daiana GonzalezBehavior Technician1205673688
- Daniela GonzalezBehavior Technician1467176479
- Laura Greene, DPTPhysical Therapist1578132916
- Bohan Gu, PHARMDPharmacist1891245783
- Natalia GuerreroBehavior Technician1154108298
- Katylynn GuglielmoBehavior Analyst1912324799
- Shanice GuidryStudent in an Organized Health Care Education/Training Program1699451997
- Daniela GuzmanBehavior Analyst1174909238
- Stephanie Guzman AlvarezProfessional Counselor1467150581
- Jerena HammadRegistered Nurse1861058422
- Sarah HamptonCase Manager/Care Coordinator1114130655
- Nicholas HanleyBehavior Technician1801742390
- Jason Hataye, M.D.Student in an Organized Health Care Education/Training Program1962654517
- Terry Hatcher, PHDMental Health Counselor1760686992
- Justin HayesMental Health Counselor1306216916
- Deadra HeardMassage Therapist1821608365
- Salma HernandezBehavior Technician1306560313
- Alexis HillCounselor1063285831
- Ashley Ho, D.M.DOral and Maxillofacial Surgery (Dentist)1023145273
- Aj Huang, L.AC.Acupuncturist1457416927
- Tuong-Van HylandDentist1275654394
- Tawhid Islam, RNEmergency Registered Nurse1568304319
- Regina JacksonBehavior Technician1750216180
- Marlin Jacob, CRTTCritical Care Certified Respiratory Therapist1417047812
- Mikel Java, MD, PHDStudent in an Organized Health Care Education/Training Program1124724430
- Crystal JensenBehavior Technician1427730431
- Kasarah JensenBehavior Technician1336061845
- Glendy JimenezBehavior Technician1982398574
- Amalisa JohnsonBehavior Technician1851023089
- Renee Johnson, CNMT, R.T.(N)(ARRT)Technician1528571213
- Gatimu KariithiMedical-Surgical Registered Nurse1952175556
- Alma KaufmannBehavior Technician1275333726
- Victor Kerenyi, D.C.Chiropractor1083643696
- Farrah Khabagnote, PSYDClinical Psychologist1972777498
- Yeun Joo Kim, D.D.S.Dentist1396171526
- Shanise KingBehavior Technician1487421939
- Cole KnowldenBehavior Technician1174417257
- Richard Ko, PHARMDPharmacist1003692740
- Kevin Koo, MA, BCBABehavior Analyst1316340086
- Jennifer Krasnoff, MDSpecialist1548342934
- Lisa Kunkel, MSWClinical Social Worker1710114244
- Tina LeBehavior Technician1588472708
- Bunny Lee, PHARM DPharmacist1306167465
- Natalie LeeClinical Social Worker1922494772
- Jennifer LeivaBehavior Technician1235916370
- Albert LemaireBehavior Technician1831871854
- Justine LiAthletic Trainer1447647292
- Rosie Lim, MDPediatrics Physician1174057459
- Douglas Lin, D.D.S.General Practice Dentistry1861588691
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Hercules, California appears in the CMS National Plan and Provider Enumeration System with 277 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 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 2024 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 (111 clinicians, followed by Pharmacist with 14 and Behavior Analyst with 13). 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 0.7 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, Case Manager/Care Coordinator 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. 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 Hercules, CA?
There are 277 registered healthcare providers in Hercules, CA, covering 25 or more 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, Dentist. Behavior Technician has the most providers with 111.
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.