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 60)

Name
Todd Oates, P.T.
Physical Therapist
Adrienne Oberstein, M.S.
Marriage & Family Therapist
Gizelle Ochoa
Behavior Technician
Paulina Ochoa Ochoa
Behavior Technician
Zayda Ochoa Ramirez
Behavior Technician
Axel Ochoa-Castaneda
Behavior Technician
Daniel Odegbami, M.S.W.
School Social Worker
Pamela Odendahl-Quant, MFT
Case Manager/Care Coordinator
Iman Odiye
Mental Health Counselor
Sarah Odom, RD
Registered Dietitian
Kristina Ogle
Behavior Technician
Jae Oh
Counselor
Vidhu Ohri
Pharmacist
Alexander Oikawa
Physical Therapist
Marliza Oineza
Behavior Analyst
Sulema Ojeda
Behavior Technician
Sarita Ojha, DDS
Dentist
Eric Okamoto, M.D.
Specialist
Yoshia Okamoto
Behavior Technician
Theodore Okazaki, DDS
Dentist
Ijeoma Okeigwe, M.D.
Reproductive Endocrinology Physician
Anthony Okereke, PHARM.D.
Pharmacotherapy Pharmacist
Jayda Olaes
Behavior Analyst
Moriah Oliphant
Behavior Technician
Renee Oliphant
Certified Registered Nurse Anesthetist
Cesar Olivas, CMT
Massage Therapist
Dawn Oliveira-Maxfield, BCBA
Behavior Analyst
Janice Oliver, DDS
Dentist
Maisha Ollison
Counselor
Nikole Omotoy
Counselor
Katie Ong
Student in an Organized Health Care Education/Training Program
Tarra Oravec, LCSW
Clinical Social Worker
Monique Ordone
Marriage & Family Therapist
Chedrick Ordonez
Behavior Technician
Katherine Orellana Jovel
Behavior Technician
David Orenberg, MD
Emergency Medicine Physician
Michael Ormonde, DPT
Physical Therapist
Crystal Orozco
Behavior Technician
Priscila Orozco
Behavior Technician
Maureen Orphanos, LCSW
Clinical Social Worker
Carmella Orr
Behavior Technician
Cecilia Ortega, D.D.S.
General Practice Dentistry
Divina Ortega
Behavior Technician
Angelina Ortega Ramirez
Behavior Technician
Rodolfo Orteza, D.D.S.
General Practice Dentistry
Bianca Ortiz
Behavior Technician
Brenda Ortiz
Counselor
Natalie Ortiz
Behavior Technician
Dalaila Ortiz Rodriguez
Behavior Technician
Timothy Ortlip, M.D.
Otolaryngology Physician

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.