Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Healthcare Providers & Facilities in Rancho Cucamonga, CA

Public healthcare directory of 4,609 individual practitioners and 1,138 healthcare facilities located in Rancho Cucamonga, California.

4,609 Practitioners
1,138 Facilities
185 Specialties

Medical Specialties in Rancho Cucamonga

Select a specialty to view practitioner listings, practice locations, and qualifications.

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All Specialties in Rancho Cucamonga

Specialties with enough public records for a comparison with U.S. figures, besides those named above, plus the 60 largest of 172 more with at least one listed practitioner. Number of practitioners in brackets.

Chiropractic Providers

Dietary & Nutritional Service Providers

Nursing Service Related Providers

Podiatric Medicine & Surgery Service Providers

Featured Healthcare Providers in Rancho Cucamonga

Practitioner profiles in Rancho Cucamonga, CA with recent CMS Medicare or Open Payments data.

Dr. Pete Carrasco , DPM

Podiatrist

7196 Sunnyside Pl, Rancho Cucamonga, CA
Phone: 9512126661
NPI 1073573127

Dr. Oluwatoyin Ogunjale , DNP

Nurse Practitioner - Psychiatric/Mental Health

9369 Greenbelt Pl, Rancho Cucamonga, CA
Phone: 9096355627
NPI 1326605148

Dr. Thomas Woodbury , DO

Family Medicine - Geriatric Medicine

Medicare Accepted
9089 Baseline Rd, Rancho Cucamonga, CA
Phone: 9099419927
NPI 1609878115

Heather Heck , PA-C

Physician Assistant

Medicare Accepted
9471 Haven Ave Ste 140, Rancho Cucamonga, CA
Phone: 9094742333
NPI 1407223944

Amgad Alfred , PA-C

Family Medicine

Medicare Accepted
8283 Grove Ave, Rancho Cucamonga, CA
Phone: 9094804808
NPI 1225504301

Jasmine Nazari , PA-C

Physician Assistant

Medicare Accepted
8777 Haven Ave, Rancho Cucamonga, CA
Phone: 9096595102
NPI 1396311205

Largest Cities in California

Other California cities with a full directory, by the number of active practitioners listed in NPPES.

How Rancho Cucamonga compares with the U.S.

Compared with the U.S. as a whole, Rancho Cucamonga has more Dentists (1.5x) and Optometrists (1.4x) per 100,000 residents.

It has fewer clinicians in Internal Medicine (17% of the U.S. rate), clinicians in Psychiatry & Neurology - Psychiatry (43%) and Nurse Practitioners (45%) per 100,000 residents.

Rancho Cucamonga has 2,628 active clinicians per 100,000 residents, compared with 2,198 for the U.S.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

86% of clinicians in Rancho Cucamonga listed in the CMS Medicare file (303 of 352) accept Medicare assignment. That is similar to the California share of 91%.

Only 352 of 4,609 active clinicians in Rancho Cucamonga appear in the CMS Medicare file, so this share describes that smaller group.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

24% of clinicians in Rancho Cucamonga listed in the CMS Medicare file (84 of 352) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the California share of 28%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Rancho Cucamonga CMS Healthcare & Financial Disclosures

CMS Part D Prescribers (2024), Open Payments (program year 2025), Medicare (PECOS) enrollment and Part B (2024) data for Rancho Cucamonga, CA

Source: CMS public datasets

Healthcare operations in Rancho Cucamonga, CA encompass 4,609 active individual practitioners and 1,138 registered medical facilities across 185 clinical specialties.

According to CMS Medicare Part D analytics for 2024, prescription drug volume in Rancho Cucamonga accounts for $53.3 Million across 409,749 prescription claims. 747 local practitioners have a Medicare (PECOS) enrollment record. Open Payments data for program year 2025 list $0.6 Million in payments reported by companies to 323 local practitioners; a reported payment does not necessarily mean the financial relationship is improper.

Medicare Part D Prescriptions (2024) $53.3M 409,749 Prescription Claims Source: data.cms.gov
Open Payments Sunshine Act (2025) $0.6M 323 Recipients Disclosed A reported payment does not necessarily mean the financial relationship is improper. Source: openpaymentsdata.cms.gov
Medicare (PECOS) Enrollment 747 Enrolled Medicare Practitioners Source: data.cms.gov
Medicare Part B Allowed Volume (2024) $27.6M 299,821 Services Performed Source: data.cms.gov

CMS PECOS: Eligible to Order or Refer for Medicare in Rancho Cucamonga

Part B Lab & Imaging Eligible: 460
Durable Medical Equipment (DME): 494
Home Health Agency (HHA): 348
Source: CMS Order and Referring