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 140 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. Andie Rendon MendozaBehavior Technician1144902040
  2. Richard Renfer, D.D.S.General Practice Dentistry1922069657
  3. Tamera Rennaker, RN, IBCLCLactation Consultant (Registered Nurse)1497370654
  4. Charles Renner, M.D.Family Medicine Physician1669439733
  5. Elisabeth Renner, M.D.Family Medicine Physician1275642910
  6. Jason Renner, D.D.S.Dentist1942416441
  7. Chelsea RenoBehavior Technician1609654078
  8. London Rensch, N/ABehavior Technician1700567302
  9. Mario RenteriaBehavior Technician1093359184
  10. Diane Renton, R.N.Registered Nurse1740564590
  11. Alexis ResendizBehavior Technician1972383826
  12. Yurixi Resendiz-CortezBehavior Technician1568204949
  13. Sean RetamalBehavior Technician1447719174
  14. Laura RewBehavior Technician1407411259
  15. Brittney RexfordCounselor1821454174
  16. Julia Reyder, BCBABehavior Analyst1124416631
  17. Christina ReyesBehavior Technician1992589220
  18. Cynthia ReyesBehavior Technician1811887367
  19. Cynthia ReyesBehavior Technician1245174820
  20. Elena ReyesBehavior Technician1649085226
  21. Emily ReyesBehavior Technician1881523215
  22. Erandy ReyesBehavior Technician1295449791
  23. Erika Mae ReyesBehavior Analyst1447737978
  24. Jason ReyesBehavior Technician1679036503
  25. Jennifer Reyes, BSBehavior Analyst1114422540
  26. Luis ReyesBehavior Technician1164310983
  27. Moana ReyesBehavior Technician1053003269
  28. Tabatha ReyesBehavior Technician1427731595
  29. Ana Reyes AcostaBehavior Technician1851174288
  30. Yasmin Reyes AssadCommunity Health Worker1922892132
  31. Diego Reyes CastroBehavior Technician1265023311
  32. Nicole Reyes LopezBehavior Technician1114737814
  33. Giselle Reyes MelendezBehavior Technician1346023223
  34. Jatziri Reyes PerezBehavior Technician1699659847
  35. Luna Reyes RivasBehavior Technician1083472120
  36. Genesis Reyes SanchezBehavior Technician1174321756
  37. Jeannette Reyes-LucianoBehavior Technician1992489116
  38. Audrey ReymanBehavior Technician1073070983
  39. Mary Reyna, PSYDClinical Psychologist1588971733
  40. Maria Reyna IbericoBehavior Technician1962184754
  41. Araceli Reyna RodriguezBehavior Technician1396376687
  42. Asa ReynoldsBehavior Technician1215619762
  43. Sara ReynoldsBehavior Technician1821684960
  44. Susanne Reynolds, ICADCIIAddiction (Substance Use Disorder) Counselor1417486283
  45. Azareli ReynosoBehavior Technician1710458278
  46. Maryssa ReynosoBehavior Technician1952225682
  47. Majid RezaeiChiropractor1578435467
  48. Yasamin Rezaei TehraniBehavior Technician1053889527
  49. Mira Rezaie, MA, BCBABehavior Analyst1205577947
  50. Alireza Rezapour, M.DInternal Medicine Physician1043370224

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.