Doctors and health care providers in Downey, CA
3,607 individual NPPES records list a practice address in Downey, 60th of 812 California cities. The largest group is behavior technician: 763, 21% of the city's records, against 18% across California. Page 18 of 73.
The 8 largest groups in Downey
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Downey in California
- Rank in California60th of 812 cities by records
- Share of the state0.4% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups32.4% of all records
Compared with California as a whole, Downey has 9.5× the state's share of ambulatory care registered nurse records and 0.38× its share of marriage & family therapist records.
Providers in Downey, alphabetically
- Nicolas Dikio, MDObstetrics & Gynecology Physician1972611762
- Lyric Dill, PROBATION OFFICERCase Manager/Care Coordinator1891933925
- Thomas Dillon, DDSGeneral Practice Dentistry1538282470
- Daheem Din, IMFMental Health Counselor1265564447
- Hung Dinh, D.O.Internal Medicine Physician1386978914
- Monina Distor-Castro, RN, FNP-BCFamily Nurse Practitioner1528379690
- Leylah DixonLicensed Vocational Nurse1477022937
- Liene Marice Dizon, RNAmbulatory Care Registered Nurse1699584623
- Henry Do, M.D.Internal Medicine Physician1538115290
- Hoang-Anh DoPharmacist1326679051
- John-Khoa Do, D.O.Internal Medicine Physician1710908223
- Nancy DoPharmacist1831720739
- Stephanie DoPharmacist1215898614
- Suzanne Do, N.P.Nurse Practitioner1720110620
- Shawayne DockettBehavior Technician1609347830
- Kristen DoleAddiction (Substance Use Disorder) Counselor1689372633
- Alexandra DollaBehavior Analyst1538844121
- Heidi Dombish, OTR/LOccupational Therapist1891221446
- Leona Dombroske, PHARMDPharmacist1730272600
- Damaris DomenechGeneral Practice Dentistry1780801399
- Angela DominguezSocial Worker1235693409
- Brandon DominguezBehavior Analyst1083261036
- See Huen Charmaine Dominguez, RDNRegistered Dietitian1194496539
- Jorge Dominicis, DDSDentist1336833698
- Luis Dominicis, D.D.SGeneral Practice Dentistry1265559603
- Zita Dominicis, DDSGeneral Practice Dentistry1740647916
- Molly DonahueMarriage & Family Therapist1932083532
- Raul DonateSocial Worker1881428993
- Stephanie DonateLicensed Vocational Nurse1811884562
- Henry DongPharmacist1306477070
- Kimberly Dong, PHARMACISTPharmacist1982442307
- Charmaine Dorsey, MSW, LCSWClinical Social Worker1932638665
- Veronica DorseyBehavior Technician1689236333
- Latoya Dotch, LVNLicensed Vocational Nurse1134791114
- Geniene Dotson-GaryCase Manager/Care Coordinator1184868028
- Kathy DouglasAddiction (Substance Use Disorder) Counselor1326285776
- Manuel DourouxPharmacy Technician1114614708
- Lisa Dow, PH.D.Clinical Psychologist1396073052
- Arthur DowneyDay Training/Habilitation Specialist1093508335
- Mary Doyle JacobsonSpeech-Language Pathologist1366976789
- Jerica Drake, RCPCritical Care Certified Respiratory Therapist1790542314
- Sean Dreyer, MDPhysical Medicine & Rehabilitation Physician1538666292
- Daniel DuStudent in an Organized Health Care Education/Training Program1407658784
- Jeffrey DuCertified Respiratory Therapist1134654320
- Nikki Du, PHARM.D.Pharmacotherapy Pharmacist1003988031
- Yen Du, RPHPharmacist1396376224
- Becky DuarteClinical Social Worker1306646005
- Norma Duarte, RSLD, RCLDOptician1275197683
- Mark Dubin, M.D.Diagnostic Radiology Physician1700843240
- Tobin Dubuc, PT, DPTPhysical Therapist1801319835
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Downey, California appears in the CMS National Plan and Provider Enumeration System with 3,607 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 Downey - 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 Downey 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 Downey is weighted toward Behavior Technician (763 clinicians, followed by Pharmacist with 248 and Physical Therapist with 159). 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, Downey reports roughly 9.3 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, Mental Health Counselor is the most prominent one with no provider currently listing a Downey practice address, a coverage gap Downey patients typically fill by traveling to a larger nearby hub.
For Downey 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 Downey, CA?
There are 3,607 registered healthcare providers in Downey, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Downey?
The most common specialties in Downey are Behavior Technician, Pharmacist, Physical Therapist, Addiction (Substance Use Disorder) Counselor, Clinical Social Worker. Behavior Technician has the most providers with 763.
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.