Doctors and health care providers in Newark, CA
698 individual NPPES records list a practice address in Newark, 243rd of 812 California cities. The largest group is behavior technician: 352, 50% of the city's records, against 18% across California. Page 11 of 14.
The 8 largest groups in Newark
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Newark in California
- Rank in California243rd of 812 cities by records
- Share of the state<0.1% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups68.8% of all records
Compared with California as a whole, Newark has 5× the state's share of addiction (substance use disorder) counselor records and 0.56× its share of pharmacist records.
Providers in Newark, alphabetically
- Kristoffer QuezadaBehavior Technician1033847348
- Moses QuianzonBehavior Technician1891422069
- Jocelyn Quintero AndradeBehavior Technician1679211031
- Khalil Rahmany, PHDClinical Psychologist1780729236
- Kiana RajBehavior Technician1134877004
- Fareeda RajaballyGeneral Practice Dentistry1942227590
- Mohamad Rajabally, DDSGeneral Practice Dentistry1952328502
- Nikhil RamgiriBehavior Technician1952071185
- Erin RamirezBehavior Technician1407628985
- Norma Ramirez, O.D.Optometrist1053464719
- Sara RamirezBehavior Technician1013876788
- Sonia RamirezBehavior Technician1114766250
- Ashley Ramirez OrtizBehavior Technician1609723444
- Swethasree RamiyaBehavior Technician1467340869
- Rayna Gabrielle RamosBehavior Technician1154007870
- Jessica RangerBehavior Technician1578235545
- Emily RasmussenBehavior Technician1477252989
- Guadalupe Razo DiazBehavior Technician1598531014
- Kwan ReagonAddiction (Substance Use Disorder) Counselor1053635706
- Heather ReedAddiction (Substance Use Disorder) Counselor1659170306
- Amy ReeseCounseling Psychologist1790807204
- Ember ReeseBehavior Technician1194692699
- Angela Reyes, NPFamily Nurse Practitioner1033825880
- Denice ReyesBehavior Analyst1285136689
- Valerie ReyesBehavior Technician1386322295
- Ihriel Reyes-OronaBehavior Technician1548961741
- Lacey ReynosaBehavior Technician1841933918
- Sharon RheeBehavior Technician1962289157
- Alena RiceBehavior Technician1508619008
- Tamara RiddleAddiction (Substance Use Disorder) Counselor1992037808
- Sandra Rivera VelaBehavior Technician1639026412
- Quanderius RobinsonBehavior Technician1770223315
- Jose Robles, SUDRCAddiction (Substance Use Disorder) Counselor1487594115
- Nora RochaAddiction (Substance Use Disorder) Counselor1871704197
- Ron RochaAddiction (Substance Use Disorder) Counselor1992916274
- Zayra RochaBehavior Technician1275395709
- Larisa RodriguezBehavior Technician1164192787
- Leonardo RodriguezAddiction (Substance Use Disorder) Counselor1639345614
- Bernardita Roe, NPAdult Health Nurse Practitioner1912268145
- Jimmy RogersAddiction (Substance Use Disorder) Counselor1952512360
- Grace RojasBehavior Technician1922883636
- Cyles RojoAddiction (Substance Use Disorder) Counselor1205201761
- Leticia Rosas VeraBehavior Analyst1922509934
- Natasha RossBehavior Technician1023830627
- Viridiana RuizBehavior Analyst1295587475
- Norla SaephanBehavior Technician1316775679
- Laura SahagunAssistant Behavior Analyst1992566814
- Anna Sales, D.M.D.General Practice Dentistry1528114063
- Alexandria SamsonBehavior Technician1407783475
- Samuel Samson, NPFamily Nurse Practitioner1689387045
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Newark, California appears in the CMS National Plan and Provider Enumeration System with 698 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 Newark - 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 Newark 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 Newark is weighted toward Behavior Technician (352 clinicians, followed by Addiction (Substance Use Disorder) Counselor with 100 and General Practice Dentistry with 28). 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, Newark reports roughly 1.8 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 Newark practice address, a coverage gap Newark patients typically fill by traveling to a larger nearby hub.
For Newark 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 Newark, CA?
There are 698 registered healthcare providers in Newark, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Newark?
The most common specialties in Newark are Behavior Technician, Addiction (Substance Use Disorder) Counselor, General Practice Dentistry, Behavior Analyst, Dentist. Behavior Technician has the most providers with 352.
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.