NPPES file of Aug 9, 2026

Doctors and health care providers in Concord, CA

9,328 individual NPPES records list a practice address in Concord, 15th of 812 California cities. The largest group is behavior technician: 6,287, 67% of the city's records, against 18% across California. Page 125 of 187.

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

Concord in California

  • Rank in California15th of 812 cities by records
  • Share of the state1% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups74% of all records
  • Behavior Technician rank4th of the 10 California cities with the most

Compared with California as a whole, Concord has 3.8× the state's share of behavior technician records and 0.27× its share of pharmacist records.

Providers in Concord, alphabetically

  1. Alexis OntiverosBehavior Technician1881469633
  2. Jechol OntiverosBehavior Technician1174224190
  3. Roxanne OntiverosBehavior Technician1184349698
  4. Precilla Ontiveros ValenciaBehavior Technician1679255368
  5. Nkechi Onuoha, RPHPharmacist1306000781
  6. Obioma OnuohaBehavior Technician1174272918
  7. Samuel Onyewumbu, LICDC,PMC, MCAP.Rehabilitation Practitioner1740877125
  8. Alexander Oparin, M.D.Family Medicine Physician1376791152
  9. Rose OpeneNurse Practitioner1437921160
  10. Jennings OppenhimerBehavior Technician1770389637
  11. Peter Oppermann, PHDClinical Psychologist1205993367
  12. Minnie OraisPhysical Therapy Assistant1518637248
  13. Jasmine OrbegosoBehavior Technician1164044319
  14. Maria OrdunaCounselor1770619975
  15. Juan OreBehavior Analyst1356236087
  16. Isabelle Oregel, BABehavior Technician1316622566
  17. Princess OreiroBehavior Technician1174012652
  18. Lili OrgainPharmacist1154777175
  19. Ryan OrihoodClinical Social Worker1679322770
  20. Maria OrihuelaBehavior Technician1750009973
  21. Michael OriolBehavior Technician1982195517
  22. Emily OrjiakoBehavior Technician1689308470
  23. Subrina OrlandoBehavior Technician1942701941
  24. Timothy OrlandoBehavior Technician1245180496
  25. Ashlyn OrmondeBehavior Technician1124503099
  26. Teresita OrnelasBehavior Technician1851859573
  27. Yulaidi OrnelasBehavior Technician1578385837
  28. Joanne OrolaBehavior Technician1932697356
  29. Arath OrozcoBehavior Technician1568267813
  30. Ashley OrozcoBehavior Technician1326638628
  31. Cassandra OrozcoBehavior Technician1902695950
  32. Christian OrozcoBehavior Technician1689309155
  33. Giancarlo OrozcoBehavior Technician1568306876
  34. Juan OrozcoBehavior Technician1821823774
  35. Mercedes OrozcoBehavior Technician1831657568
  36. Diego Orozco CandelasBehavior Technician1508599598
  37. Diana Orozco EchevarriaBehavior Technician1437748886
  38. Joana Orozco MoraBehavior Technician1457138208
  39. Christina OrrBehavior Technician1437020336
  40. Jessica OrrBehavior Technician1881293553
  41. Ariana OrtegaBehavior Technician1659156693
  42. Nicole Ortega, R.D.H.A.P.Dental Hygienist1548637184
  43. Veronica OrtegaBehavior Technician1306779038
  44. Victor OrtegaAddiction (Substance Use Disorder) Counselor1447535612
  45. Jacqueline Ortega CastellanosBehavior Technician1447896428
  46. Emely Ortega-BrisenoBehavior Technician1538946769
  47. Kimberly Ortega-EsparzaBehavior Technician1528847118
  48. Mahliyah Ortez-LuceroBehavior Technician1063394039
  49. Ailsa Giselle OrtizBehavior Technician1033966205
  50. Andrea OrtizBehavior Technician1205700374

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

Concord, California appears in the CMS National Plan and Provider Enumeration System with 9,328 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 Concord - 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 Concord 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 Concord is weighted toward Behavior Technician (6,287 clinicians, followed by Behavior Analyst with 331 and Marriage & Family Therapist with 286). 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, Concord reports roughly 23.9 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, Internal Medicine Physician is the most prominent one with no provider currently listing a Concord practice address, a coverage gap Concord patients typically fill by traveling to a larger nearby hub.

For Concord 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 Concord, CA?

There are 9,328 registered healthcare providers in Concord, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Concord?

The most common specialties in Concord are Behavior Technician, Behavior Analyst, Marriage & Family Therapist, Mental Health Counselor, Counselor. Behavior Technician has the most providers with 6,287.

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.