Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Michael Robert McCarthy, MD/PHD

Individual provider Internal Medicine Physician · NPI 1982616553

Michael Robert McCarthy, MD/PHD practises Internal Medicine in San Francisco, California. Qualified in 2002, 24 years ago. Practices with County of San Mateo, a 316-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
24
Licensed in
CA
In the registry since
2006
Specialties on file
2
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Practice location Address checks out

900 Hyde St Rm 410
San Francisco, CA 94109-4806
Phone: (415) 353-6817
Fax: (510) 597-9212
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence A96302 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A96302 (CA)

Record details

NPI number1982616553
Entity typeIndividual (Type 1)
GenderMale
Credentials MD/PHD
Sole proprietorNo
NPI enumeratedAugust 12, 2006
Last updated in NPPESSeptember 18, 2017

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice County Of San Mateo — 316 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients87
Services billed 233 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at County of San Mateo

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 316 clinicians in the practice; 12 are shown here.

Other providers in San Francisco