Doctors and health care providers in Northridge, CA
2,598 individual NPPES records list a practice address in Northridge, 88th of 812 California cities. The largest group is rehabilitation practitioner: 239, 9% of the city's records, against 1% across California. Page 29 of 52.
The 8 largest groups in Northridge
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Northridge in California
- Rank in California88th of 812 cities by records
- Share of the state0.3% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups24% of all records
Compared with California as a whole, Northridge has 6.5× the state's share of rehabilitation practitioner records and 0.35× its share of addiction (substance use disorder) counselor records.
Providers in Northridge, alphabetically
- Karen Marhoffer, MSN, APRN, FNPFamily Nurse Practitioner1194512178
- Militza MarinMarriage & Family Therapist1447401815
- Macy Marine, DDSGeneral Practice Dentistry1750588216
- Tina Markarian, PHARMDPharmacist1013494491
- Robert MarkmanPain Medicine (Anesthesiology) Physician1205026036
- Harold Marks, MDSurgery Physician1568422822
- Bridgit MarloMental Health Counselor1689869208
- William MarlowNeonatal/Pediatric Certified Respiratory Therapist1134437486
- Stephen Maron, D.D.S.Dentist1679731996
- Gabrielle Marques, DOStudent in an Organized Health Care Education/Training Program1780213116
- Genesis MarquezBehavior Analyst1548102668
- Xavier Marroquin, MAMedical Physician Assistant1295677516
- Giona MarshallCounselor1811296437
- Makia MarshallBehavior Analyst1285554147
- Breanna MartinBehavior Technician1043044373
- Heather MartinStudent in an Organized Health Care Education/Training Program1306356167
- Lawrence Martin, PSYDClinical Psychologist1649226788
- Ashley MartinezDay Training/Habilitation Specialist1932963998
- Candy MartinezRehabilitation Practitioner1124304464
- Carol MartinezClinical Social Worker1982157848
- Eugenia MartinezRehabilitation Practitioner1295572964
- Hector Martinez, MSWClinical Social Worker1639428352
- Jeannette MartinezDay Training/Habilitation Specialist1598591000
- Jennifer MartinezStudent in an Organized Health Care Education/Training Program1831746015
- Joanna Martinez, MAMedical Physician Assistant1871435727
- Karla MartinezClinical Social Worker1902935612
- Karla MartinezCommunity Health Worker1982441630
- Kristian MartinezCommunity Health Worker1811325269
- Maria Martinez, HADHearing Instrument Specialist1811570997
- Richard MartinezCase Manager/Care Coordinator1366770364
- Roxana MartinezStudent in an Organized Health Care Education/Training Program1629583992
- Sandra MartinezClinical Social Worker1508237983
- Stephanie MartinezCase Manager/Care Coordinator1174279491
- Tania MartinezRehabilitation Practitioner1225200330
- Araceli Martinez ArroyoMental Health Counselor1265681506
- Rosa Martinez De La CruzRehabilitation Practitioner1033570569
- Alondra Martinez De MurciaBehavior Technician1326636218
- Valerie MasariegosBehavior Technician1366370900
- Matthew MasataniPhysical Therapist1780014597
- Didier Mascarade, D.C.Internist Chiropractor1598891301
- Jacqueline Masequesmay, M.D.Family Medicine Physician1174710164
- Richard Mason, MA CCC/SLPSpeech-Language Pathologist1750658894
- Brandee MassengaleSocial Worker1275040578
- Antonette Masters, D.D.S.Dentist1336281062
- Thresiamma MathewRegistered Nurse1033800024
- Belen Matias, M.D.Infectious Disease Physician1881874691
- Narine MatinayanSocial Worker1508433475
- Cole MatthewsBehavior Technician1891345914
- Ella MatthewsBehavior Analyst1598646408
- Stephen MatthewsPsychologist1124758594
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Northridge, California appears in the CMS National Plan and Provider Enumeration System with 2,598 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 Northridge - 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 Northridge 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 Northridge is weighted toward Rehabilitation Practitioner (239 clinicians, followed by Clinical Social Worker with 197 and Behavior Technician with 187). 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, Northridge reports roughly 6.7 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.
For Northridge 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 Northridge, CA?
There are 2,598 registered healthcare providers in Northridge, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Northridge?
The most common specialties in Northridge are Rehabilitation Practitioner, Clinical Social Worker, Behavior Technician, Marriage & Family Therapist, Student in an Organized Health Care Education/Training Program. Rehabilitation Practitioner has the most providers with 239.
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.