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 4 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. Mike Lin, MDSpecialist1871027136
  2. Jay-Ling LiraBehavior Technician1962116368
  3. Lilia Lizano, M.D.Obstetrics & Gynecology Physician1588622146
  4. Juliette LopezBehavior Technician1447128319
  5. Kasandra LopezBehavior Technician1427629096
  6. Rosa LopezBehavior Technician1437071024
  7. Destiny Lopez EsperanzaBehavior Technician1508659665
  8. Nathan Louie, O.D.Optometrist1548679269
  9. Sulema LozaBehavior Technician1972348712
  10. Calvin Ly, DOEmergency Medicine Physician1376761767
  11. Aryah MajidzadahBehavior Technician1497431225
  12. Maria Theresa Malasan, NPFamily Nurse Practitioner1639555691
  13. Philip MalgapoPhysical Therapist1982863379
  14. Lovely Manlapaz, DDSDentist1649454802
  15. Alma MartinezTechnician/Technologist1649004714
  16. Magdalena MartinezBehavior Technician1528935137
  17. Michael MartinezBehavior Technician1881455277
  18. Ellen Marzan, D.C.Chiropractor1316159049
  19. Mencita Masangkay, DMDGeneral Practice Dentistry1851465769
  20. Gerald MasonBehavior Technician1346160561
  21. Lita Matibag, LVNLicensed Vocational Nurse1831558576
  22. Wendy Mazursky, PA-C, MSPhysician Assistant1255425583
  23. Kale McSpaddenBehavior Technician1821924069
  24. Cristian MedalStudent in an Organized Health Care Education/Training Program1629899935
  25. Christian MedinaBehavior Analyst1275273039
  26. Asha Mehta-KhanBehavior Technician1306764808
  27. Laylah Melgoza-RojasBehavior Technician1912865510
  28. Michelle MendlerDoula1467934430
  29. Sthefanny MenesesBehavior Technician1821943010
  30. Amanda Messina-Godfrey, BCBA 1-18-29787Behavior Analyst1659876902
  31. Michael Messina-GodfreyBehavior Technician1316742752
  32. Antonia MillerBehavior Technician1164148961
  33. Colin MillerMental Health Counselor1922970425
  34. Garrett Milner, O.D.Optometrist1073742219
  35. Imelda Milo, PTPhysical Therapist1982114583
  36. Mariah MinjaresBehavior Technician1982568820
  37. Karina MonroyBehavior Technician1518693407
  38. Chrystale MonzonBehavior Technician1669338182
  39. Elizabeth Mora, D.D.S.General Practice Dentistry1427223379
  40. Myleyby MoraBehavior Technician1093679680
  41. Pilar MorenoBehavior Technician1053171215
  42. Devyn MorrisBehavior Technician1477235497
  43. Shawntanea MotenBehavior Technician1255108700
  44. Kayley MunozBehavior Technician1144906975
  45. Dawn MurrayCounselor1619171147
  46. Hasib MustamandiBehavior Technician1720964117
  47. Erika Nelson, MS PPSCounselor1437081585
  48. Leonard Newman, MDOphthalmology Physician1902950132
  49. Ronald Newman, D.C.Chiropractor1700893468
  50. Darren Ng, O.D.Optometrist1164612156

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.