2026 data CMS NPPES NUCC Taxonomy

Doctors in Fremont, CA

Active healthcare providers in Fremont sourced from the CMS NPPES weekly file, no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.

4,638
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Behavior Technician
Top specialty
994 providers
California
State
CA

Where this city sits in the corpus

Fremont ranks 36th among 805 California cities by CMS provider count, holding 0.5% of the state's NPIs, led by Behavior Technician.

4,638
NPPES providers in city
36th
of 805 CA cities
0.5%
of California providers
29.6%
in top 3 specialties

Fremont ranks #11 of 10 California cities for Behavior Technician.

Where Fremont ranks among California cities

Provider count vs every California city in CMS NPPES (805 cities)

4,638 Top 4% higher than 96% of 805 cities

0–200: 398 cities (49%). Below this entry. 200–400: 103 cities (13%). Below this entry. 400–600: 45 cities (6%). Below this entry. 600–800: 48 cities (6%). Below this entry. 800–1,000: 29 cities (4%). Below this entry. 1,000–1,200: 15 cities (2%). Below this entry. 1,200–1,400: 17 cities (2%). Below this entry. 1,400–1,600: 15 cities (2%). Below this entry. 2K+: 135 cities (17%). This entry sits in this band. This city 0 2K+ California cities (providers), bucketed by value

Each bar is a band; taller bars hold more cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS National Plan & Provider Enumeration System (NPPES) · 2026

Specialty mix in Fremont

Share of the city's NPPES registrations by NUCC taxonomy

providers

What this shows Behavior Technician is the largest specialty (994 providers, 21.4% of the city), followed by Student in an Organized Health Care Education/Training Program.

Source CMS NPPES · city_top_specialties As of 2026

City vs state specialty index

Specialties Fremont has more, and fewer, of than California average

Each multiple is this city's share of a specialty divided by that specialty's average share across California , Fremont over-indexes acupuncturist at 2.1× the state average and under-indexes addiction (substance use disorder) counselor at 0.44×. This reflects local practice structure, not care quality.

More common here than California average

Less common here than California average

How to read this directory & data limitations

Fremont, California appears in the CMS National Plan and Provider Enumeration System with 4,638 registered healthcare providers spanning 20 distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Fremont - 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 Fremont 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 2023 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Fremont is weighted toward Behavior Technician (994 clinicians, followed by Student in an Organized Health Care Education/Training Program with 198 and Pharmacist with 183). 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, Fremont reports roughly 11.9 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, Case Manager/Care Coordinator is the most prominent one with no provider currently listing a Fremont practice address, a coverage gap Fremont patients typically fill by traveling to a larger nearby hub.

For Fremont 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.

Which specialties are most common in Fremont

# Specialty Providers% of city
1 Behavior Technician 994 21.4%
2 Student in an Organized Health Care Education/Training Program 198 4.3%
3 Pharmacist 183 3.9%
4 Physical Therapist 153 3.3%
5 General Practice Dentistry 153 3.3%
6 Internal Medicine Physician 145 3.1%
7 Marriage & Family Therapist 144 3.1%
8 Acupuncturist 111 2.4%
9 Dentist 110 2.4%
10 Behavior Analyst 104 2.2%
11 Counselor 104 2.2%
12 Mental Health Counselor 96 2.1%
13 Pediatrics Physician 95 2.0%
14 Clinical Social Worker 95 2.0%
15 Registered Nurse 91 2.0%

Healthcare Providers (Page 64)

Name
Jingyu Peng
Acupuncturist
Ruijie Peng
Behavior Technician
Susan Peng, MD
Endocrinology, Diabetes & Metabolism Physician
Ashley Penland, PA-C
Physician Assistant
Brian Pennington
Behavior Technician
Larisa Peralta, RN
Registered Nurse
Sharon Pereira, LMFT
Mental Health Counselor
Aniyah Perez
Behavior Technician
Brian Perez
Behavior Technician
Eileen Perez
Behavior Technician
Elena Perez
Behavior Technician
Estefana Perez
Behavior Technician
Gabriela Perez
Mental Health Counselor
Genevieve Perez
Health & Wellness Coach
Jenisse Perez
Behavior Technician
Kevin Perez
Social Worker
Natalie Perez Leon
Behavior Technician
Diana Perez Palma
Behavior Technician
Karina Perez Valle
Behavior Technician
Jayalakshmi Periasamy
Registered Dietitian
Andrea Perry
Mental Health Counselor
Cristina Perry
Behavior Analyst
Makalah Perry
Behavior Technician
Savannah Perry
Behavior Technician
Sarah Peters
Behavior Analyst
Dominique Peterson, PA-C
Physician Assistant
Lashonda Petry, OTR/L
Specialist
Keith Pflieger, CCP
Perfusionist
An Pham, PHARMACY TECHNICIAN
Behavior Technician
Angelica Pham
Occupational Therapist
Anh Pham
Behavior Technician
Danny Pham
Behavior Technician
Tan Pham, MD
Internal Medicine Physician
Thuy-Linh Pham
Behavior Technician
Trang Pham, PA-C
Physician Assistant
Uyen Pham
Pharmacist
Andrew Phan, DO
Family Medicine Physician
Ann Phan, DO
Internal Medicine Physician
Cathy Phan
Behavior Technician
Emily Phan, RPH
Pharmacist
Hieucam Phan, MD
Pediatrics Physician
Kelly Phan
Behavior Technician
Brian Phanichkarn, LCSW
Clinical Social Worker
Thomas Phelps, D.D.S.
Orthodontics and Dentofacial Orthopedics Dentistry
Jasmine Phiengsai
Behavior Technician
Nicholas Phillips, M.D.
Family Medicine Physician
Kristina Philpott, M.D.
Allergy & Immunology Physician
Amanda Phu
Behavior Technician
Marnier Pierce
Behavior Technician
Rochelle Pierce, R.D.
Registered Dietitian

Nearby Cities in California

Other California cities with provider coverage in the CMS NPPES registry.

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Fremont, CA?
There are 4,638 registered healthcare providers in Fremont, CA, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Fremont?
The most common specialties in Fremont are Behavior Technician, Student in an Organized Health Care Education/Training Program, Pharmacist, Physical Therapist, General Practice Dentistry. Behavior Technician has the most providers with 994.
Related guides

Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-20.