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

Lynnea Mills, MD

Individual provider Internal Medicine Physician · NPI 1952626772

Lynnea Mills, MD is a Hospitalist in San Francisco, California. Graduated from Columbia University College of Physicians and Surgeons in 2010, 16 years ago. Practices with Regents of the University of California, a 717-clinician group and accepts Medicare assignment. Licensed in California and Washington.

Years since qualifying
16
Trained at
Columbia University College of Physicians and Surgeons
Licensed in
CA, WA
In the registry since
2010
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

533 Parnassus Ave Ste U127A Box 0131
San Francisco, CA 94143-0131 Not confirmed with CMS for 12 years — call before visiting
Phone: (415) 476-7991
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 131354 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD60299964 (WA)

Record details

NPI number1952626772
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 5, 2010
Last updated in NPPESJuly 7, 2014

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolCOLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS
Graduated 2010 (16 years in practice)
Group practice Regents Of The University Of California — 717 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients56
Services billed 196 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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 Regents of the University of California

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 717 clinicians in the practice; 12 are shown here.

Other providers in San Francisco