NPPES file of Aug 9, 2026

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.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

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

  1. Cynthia GonzalezBehavior Technician1447131271
  2. Daiana GonzalezBehavior Technician1205673688
  3. Daniela GonzalezBehavior Technician1467176479
  4. Laura Greene, DPTPhysical Therapist1578132916
  5. Bohan Gu, PHARMDPharmacist1891245783
  6. Natalia GuerreroBehavior Technician1154108298
  7. Katylynn GuglielmoBehavior Analyst1912324799
  8. Shanice GuidryStudent in an Organized Health Care Education/Training Program1699451997
  9. Daniela GuzmanBehavior Analyst1174909238
  10. Stephanie Guzman AlvarezProfessional Counselor1467150581
  11. Jerena HammadRegistered Nurse1861058422
  12. Sarah HamptonCase Manager/Care Coordinator1114130655
  13. Nicholas HanleyBehavior Technician1801742390
  14. Jason Hataye, M.D.Student in an Organized Health Care Education/Training Program1962654517
  15. Terry Hatcher, PHDMental Health Counselor1760686992
  16. Justin HayesMental Health Counselor1306216916
  17. Deadra HeardMassage Therapist1821608365
  18. Salma HernandezBehavior Technician1306560313
  19. Alexis HillCounselor1063285831
  20. Ashley Ho, D.M.DOral and Maxillofacial Surgery (Dentist)1023145273
  21. Aj Huang, L.AC.Acupuncturist1457416927
  22. Tuong-Van HylandDentist1275654394
  23. Tawhid Islam, RNEmergency Registered Nurse1568304319
  24. Regina JacksonBehavior Technician1750216180
  25. Marlin Jacob, CRTTCritical Care Certified Respiratory Therapist1417047812
  26. Mikel Java, MD, PHDStudent in an Organized Health Care Education/Training Program1124724430
  27. Crystal JensenBehavior Technician1427730431
  28. Kasarah JensenBehavior Technician1336061845
  29. Glendy JimenezBehavior Technician1982398574
  30. Amalisa JohnsonBehavior Technician1851023089
  31. Renee Johnson, CNMT, R.T.(N)(ARRT)Technician1528571213
  32. Gatimu KariithiMedical-Surgical Registered Nurse1952175556
  33. Alma KaufmannBehavior Technician1275333726
  34. Victor Kerenyi, D.C.Chiropractor1083643696
  35. Farrah Khabagnote, PSYDClinical Psychologist1972777498
  36. Yeun Joo Kim, D.D.S.Dentist1396171526
  37. Shanise KingBehavior Technician1487421939
  38. Cole KnowldenBehavior Technician1174417257
  39. Richard Ko, PHARMDPharmacist1003692740
  40. Kevin Koo, MA, BCBABehavior Analyst1316340086
  41. Jennifer Krasnoff, MDSpecialist1548342934
  42. Lisa Kunkel, MSWClinical Social Worker1710114244
  43. Tina LeBehavior Technician1588472708
  44. Bunny Lee, PHARM DPharmacist1306167465
  45. Natalie LeeClinical Social Worker1922494772
  46. Jennifer LeivaBehavior Technician1235916370
  47. Albert LemaireBehavior Technician1831871854
  48. Justine LiAthletic Trainer1447647292
  49. Rosie Lim, MDPediatrics Physician1174057459
  50. Douglas Lin, D.D.S.General Practice Dentistry1861588691

The largest California cities

  1. Los Angeles69,537
  2. San Diego52,937
  3. San Francisco38,143
  4. Sacramento33,083
  5. San Jose20,925

All of California →

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.