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.
The 8 largest groups in Concord
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
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
- Andie Rendon MendozaBehavior Technician1144902040
- Richard Renfer, D.D.S.General Practice Dentistry1922069657
- Tamera Rennaker, RN, IBCLCLactation Consultant (Registered Nurse)1497370654
- Charles Renner, M.D.Family Medicine Physician1669439733
- Elisabeth Renner, M.D.Family Medicine Physician1275642910
- Jason Renner, D.D.S.Dentist1942416441
- Chelsea RenoBehavior Technician1609654078
- London Rensch, N/ABehavior Technician1700567302
- Mario RenteriaBehavior Technician1093359184
- Diane Renton, R.N.Registered Nurse1740564590
- Alexis ResendizBehavior Technician1972383826
- Yurixi Resendiz-CortezBehavior Technician1568204949
- Sean RetamalBehavior Technician1447719174
- Laura RewBehavior Technician1407411259
- Brittney RexfordCounselor1821454174
- Julia Reyder, BCBABehavior Analyst1124416631
- Christina ReyesBehavior Technician1992589220
- Cynthia ReyesBehavior Technician1811887367
- Cynthia ReyesBehavior Technician1245174820
- Elena ReyesBehavior Technician1649085226
- Emily ReyesBehavior Technician1881523215
- Erandy ReyesBehavior Technician1295449791
- Erika Mae ReyesBehavior Analyst1447737978
- Jason ReyesBehavior Technician1679036503
- Jennifer Reyes, BSBehavior Analyst1114422540
- Luis ReyesBehavior Technician1164310983
- Moana ReyesBehavior Technician1053003269
- Tabatha ReyesBehavior Technician1427731595
- Ana Reyes AcostaBehavior Technician1851174288
- Yasmin Reyes AssadCommunity Health Worker1922892132
- Diego Reyes CastroBehavior Technician1265023311
- Nicole Reyes LopezBehavior Technician1114737814
- Giselle Reyes MelendezBehavior Technician1346023223
- Jatziri Reyes PerezBehavior Technician1699659847
- Luna Reyes RivasBehavior Technician1083472120
- Genesis Reyes SanchezBehavior Technician1174321756
- Jeannette Reyes-LucianoBehavior Technician1992489116
- Audrey ReymanBehavior Technician1073070983
- Mary Reyna, PSYDClinical Psychologist1588971733
- Maria Reyna IbericoBehavior Technician1962184754
- Araceli Reyna RodriguezBehavior Technician1396376687
- Asa ReynoldsBehavior Technician1215619762
- Sara ReynoldsBehavior Technician1821684960
- Susanne Reynolds, ICADCIIAddiction (Substance Use Disorder) Counselor1417486283
- Azareli ReynosoBehavior Technician1710458278
- Maryssa ReynosoBehavior Technician1952225682
- Majid RezaeiChiropractor1578435467
- Yasamin Rezaei TehraniBehavior Technician1053889527
- Mira Rezaie, MA, BCBABehavior Analyst1205577947
- Alireza Rezapour, M.DInternal Medicine Physician1043370224
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
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.