NPPES file of Aug 9, 2026

Doctors and health care providers in Royal Oaks, CA

21 individual NPPES records list a practice address in Royal Oaks, 693rd of 812 California cities. The largest group is behavior technician: 4, 19% of the city's records, against 18% across California.

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

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Royal Oaks in California

  • Rank in California693rd of 812 cities by records
  • Share of the state<0.1% of California's records
  • Specialties present16 taxonomy codes
  • Top three groups38.1% of all records
  • Behavior Technician rank11th of the 10 California cities with the most

Providers in Royal Oaks, alphabetically

  1. Fabian Alvarado, FNPFamily Nurse Practitioner1578891859
  2. Barry Balch, PH. D.Clinical Psychologist1811161573
  3. Yazell HerreraCase Manager/Care Coordinator1265133938
  4. Betsaida LopezBehavior Technician1114891504
  5. Pablo MarchevskyFamily Medicine Physician1396155685
  6. Claudia Martin, RDH22149Dental Hygienist1598291726
  7. Rosario MelgozaHealth & Wellness Coach1083580583
  8. Jorge MendezClinical Psychologist1487919627
  9. Jose MorelosSchool Counselor1750244778
  10. Diane Myers, RN, MSNPsychiatric/Mental Health Clinical Nurse Specialist1093814592
  11. Vanessa OrtizBehavior Analyst1639669740
  12. Samantha PatinoAddiction (Substance Use Disorder) Counselor1104460047
  13. Yesenia RenteriaDoula1790513133
  14. Ernesto RochaLicensed Vocational Nurse1811820673
  15. Janet RochaBehavior Technician1497385769
  16. Ana RodriguezStudent in an Organized Health Care Education/Training Program1558259572
  17. Maira RuizBehavior Technician1144895996
  18. Tiffany SchofieldAddiction (Substance Use Disorder) Counselor1295483519
  19. Emily Valdivia, CLC CHWCommunity Health Worker1952109332
  20. Lisa Zee, MS,CCC-SLPSpeech-Language Pathologist1265380174
  21. Crystal ZepedaBehavior Technician1396317954

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

Royal Oaks, California appears in the CMS National Plan and Provider Enumeration System with 21 registered healthcare providers spanning 16 distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Royal Oaks - 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 Royal Oaks 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 Royal Oaks is weighted toward Behavior Technician (4 clinicians, followed by Clinical Psychologist with 2 and Addiction (Substance Use Disorder) Counselor with 2). 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, Royal Oaks reports roughly 0.1 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, Marriage & Family Therapist is the most prominent one with no provider currently listing a Royal Oaks practice address, a coverage gap Royal Oaks patients typically fill by traveling to a larger nearby hub.

For Royal Oaks 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 Royal Oaks, CA?

There are 21 registered healthcare providers in Royal Oaks, CA, covering 16 specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Royal Oaks?

The most common specialties in Royal Oaks are Behavior Technician, Clinical Psychologist, Addiction (Substance Use Disorder) Counselor, Student in an Organized Health Care Education/Training Program, Doula. Behavior Technician has the most providers with 4.

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.