Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Healthcare Providers & Facilities in South San Francisco, CA

Public healthcare directory of 1,185 individual practitioners and 214 healthcare facilities located in South San Francisco, California.

1,185 Practitioners
214 Facilities
155 Specialties

Medical Specialties in South San Francisco

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

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All Specialties in South San Francisco

Specialties with enough public records for a comparison with U.S. figures, besides those named above, plus the 60 largest of 145 more with at least one listed practitioner. Number of practitioners in brackets.

Chiropractic Providers

Dental Providers

Dietary & Nutritional Service Providers

Eye and Vision Services Providers

Nursing Service Providers

Nursing Service Related Providers

Physician Assistants & Advanced Practice Nursing Providers

Speech, Language and Hearing Service Providers

Featured Healthcare Providers in South San Francisco

Practitioner profiles in South San Francisco, CA with recent CMS Medicare or Open Payments data.

Dr. Corrine Woo , DDS

Dentist

225 Spruce Ave, South San Francisco, CA
Phone: 6505882466
NPI 1801957857

Olga Gleyzer

Physical Therapist

443 Grand Ave, South San Francisco, CA
Phone: 6505889668
NPI 1902271885

Dr. Gregory Hayner , PharmD

Pharmacist - Pharmacotherapy

1200 El Camino Real, South San Francisco, CA
Phone: 6507427242
NPI 1578634721

Dr. Sarah Louie , PharmD

Pharmacist

1200 El Camino Real, South San Francisco, CA
Phone: 4152034714
NPI 1831275122

Dr. Todd Lawry , MD

Dermatology

1200 El Camino Real, South San Francisco, CA
Phone: 6507422000
NPI 1174601793

Dr. Stephen Howe , MD

Internal Medicine

1200 El Camino Real, South San Francisco, CA
Phone: 6507422000
NPI 1497833024

Largest Cities in California

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

How South San Francisco compares with the U.S.

Compared with the U.S. as a whole, South San Francisco has more clinicians in Internal Medicine (2.2x), Hospitalists (2.1x) and clinicians in Dentist - General Practice (1.7x) per 100,000 residents.

It has fewer clinicians in Family Medicine (40% of the U.S. rate), Nurse Practitioners (59%) and clinicians in Nurse Practitioner - Family (73%) per 100,000 residents.

South San Francisco has 1,843 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.

94% of clinicians in South San Francisco listed in the CMS Medicare file (195 of 208) accept Medicare assignment. That is similar to the California share of 91%.

Only 208 of 1,185 active clinicians in South San Francisco 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.

17% of clinicians in South San Francisco listed in the CMS Medicare file (36 of 208) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is lower than 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).

South San Francisco CMS Healthcare & Financial Disclosures

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

Source: CMS public datasets

Healthcare operations in South San Francisco, CA encompass 1,185 active individual practitioners and 214 registered medical facilities across 155 clinical specialties.

According to CMS Medicare Part D analytics for 2024, prescription drug volume in South San Francisco accounts for $21.0 Million across 195,082 prescription claims. 321 local practitioners have a Medicare (PECOS) enrollment record. Open Payments data for program year 2025 list $55.1 Million in payments reported by companies to 95 local practitioners; a reported payment does not necessarily mean the financial relationship is improper.

Medicare Part D Prescriptions (2024) $21.0M 195,082 Prescription Claims Source: data.cms.gov
Open Payments Sunshine Act (2025) $55.1M 95 Recipients Disclosed A reported payment does not necessarily mean the financial relationship is improper. Source: openpaymentsdata.cms.gov
Medicare (PECOS) Enrollment 321 Enrolled Medicare Practitioners Source: data.cms.gov
Medicare Part B Allowed Volume (2024) $44.9M 73,451 Services Performed Source: data.cms.gov

CMS PECOS: Eligible to Order or Refer for Medicare in South San Francisco

Part B Lab & Imaging Eligible: 263
Durable Medical Equipment (DME): 277
Home Health Agency (HHA): 244
Source: CMS Order and Referring