DR. ANDREW M. POSSELT MD
NPI 1235193616
Internal Medicine in San Francisco, CA
About Dr. Andrew M. Posselt Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ANDREW M. POSSELT MD (NPI 1235193616) is an individual internal medicine provider in San Francisco, California, licensed in California (G81075) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of Perelman School Of Med At The University Of Pennsylvania (1993).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Andrew M. Posselt Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94143 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Andrew Posselt's NPI number?
The NPI number for Andrew Posselt is 1235193616. It was assigned to this individual provider in the NPPES registry on April 13, 2006.
Where is Andrew Posselt located?
Andrew Posselt practices at 400 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 353-2318.
What is Andrew Posselt's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Andrew Posselt enrolled in Medicare?
Yes. Andrew Posselt is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
When was this NPI record last updated?
The NPPES record for Andrew Posselt was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Andrew M. Posselt, MD · NPI 1235193616
Internal Medicine physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since April 13, 2006.
## Identity
- **NPI:** 1235193616 (Entity type: Individual)
- **Enumerated:** April 13, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** G81075 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 400 PARNASSUS AVE, San Francisco, CA 94143-2202
- **Phone:** (415) 353-2318 · **Fax:** (415) 353-8917
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Perelman School Of Med At The University Of Pennsylvania, class of 1993
## Record status
- **NPPES last updated:** July 13, 2026
- **Other identifiers:** Medicaid 0G8107500 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1235193616) · Data from the CMS NPPES public registry.