Doctors and health care providers in Norwalk, CA
1,600 individual NPPES records list a practice address in Norwalk, 137th of 812 California cities. The largest group is behavior technician: 193, 12% of the city's records, against 18% across California. Page 14 of 32.
The 8 largest groups in Norwalk
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Norwalk in California
- Rank in California137th of 812 cities by records
- Share of the state0.2% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups24% of all records
Compared with California as a whole, Norwalk has 8.1× the state's share of licensed psychiatric technician records and 0.50× its share of addiction (substance use disorder) counselor records.
Providers in Norwalk, alphabetically
- Jennifer Hernandez AlarconSocial Worker1306328703
- Lauren Hernandez-HinrichsCase Manager/Care Coordinator1508447871
- Rocio HerreaCounselor1265711584
- Dinessa HerreraCase Manager/Care Coordinator1063836112
- Frida HerreraBehavior Technician1619830486
- Hadey HerreraCommunity Health Worker1255199626
- Stephanie Herrera BaezDay Training/Habilitation Specialist1437932837
- Toni Heuchan, SUDCCAddiction (Substance Use Disorder) Counselor1528604667
- Marcus HicksPeer Specialist1780933010
- Erica HigaOccupational Therapist1801777099
- Genesis Higareda-LopezBehavior Technician1295213585
- Mysty Higgins, LPCCProfessional Counselor1609386572
- Candice HillProfessional Counselor1235536855
- Nia HillCounselor1255607602
- Kiera HimslClinical Psychologist1073138368
- Afnan HindiBehavior Technician1861357618
- Kathryn Hittle, PTPhysical Therapist1699490797
- George HitzerothBehavior Technician1134060437
- Julia Hoang, M.D.Child & Adolescent Psychiatry Physician1801202197
- Thu HoangStudent in an Organized Health Care Education/Training Program1962986844
- Vicky Hoggatt, PHARM D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1891070124
- Se Bunny Hok, PHARMACISTPharmacist1780355859
- Visal HokPharmacist1750927737
- Aneesa HoltBehavior Technician1407712086
- Ah HongBehavior Technician1891660114
- Sydney Hong, O.D.Optometrist1114018868
- Thien Hong Diep, RNEmergency Registered Nurse1508383654
- Sindy Hor, MSW, ACSWMental Health Counselor1316627367
- Brian Hough, PHDClinical Psychologist1649210998
- Lisa HoughtonClinical Psychologist1457904260
- Ariana HowellMarriage & Family Therapist1043035272
- Cecilia Hsia, M.DPsychiatry Physician1437289246
- Yuwei Hsieh, PHARMACISTPsychiatric Pharmacist1679003859
- Albert Hu, PHARM.D.Pharmacist1265098099
- Yadelin HuapillaCase Manager/Care Coordinator1447962352
- Van HudsonCase Manager/Care Coordinator1881166254
- Jacqueline HuertaBehavior Technician1659232502
- Taylor HuertaDoula1477340461
- Philip HugghisBehavior Technician1417813742
- Maybelle HuiMental Health Counselor1073915955
- Anna HunterCounselor1265055214
- Brenda HuttonAddiction (Substance Use Disorder) Counselor1962534958
- Hanh Huynh, RPHPharmacist1306510540
- Ju Hee HwangFamily Medicine Physician1265235766
- Zoo HwangPharmacist1215335807
- Evelyn HyderBehavior Technician1538029616
- Jonathan IlanoCase Manager/Care Coordinator1184273237
- Yulianna Iniguez GarciaBehavior Technician1346118221
- Alex Iroha, NPNurse Practitioner1962242578
- John IwuanyanwuPsychiatric/Mental Health Nurse Practitioner1689364911
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Norwalk, California appears in the CMS National Plan and Provider Enumeration System with 1,600 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 Norwalk - 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 Norwalk 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 Norwalk is weighted toward Behavior Technician (193 clinicians, followed by Case Manager/Care Coordinator with 105 and Student in an Organized Health Care Education/Training Program with 86). 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, Norwalk reports roughly 4.1 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, Behavior Analyst is the most prominent one with no provider currently listing a Norwalk practice address, a coverage gap Norwalk patients typically fill by traveling to a larger nearby hub.
For Norwalk 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 Norwalk, CA?
There are 1,600 registered healthcare providers in Norwalk, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Norwalk?
The most common specialties in Norwalk are Behavior Technician, Case Manager/Care Coordinator, Student in an Organized Health Care Education/Training Program, Clinical Social Worker, Marriage & Family Therapist. Behavior Technician has the most providers with 193.
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.