MICHAEL ALEX GROSSMAN
NPI 1902788516
Nurse Practitioner - Family in San Francisco, CA
About Michael Alex Grossman NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL ALEX GROSSMAN (NPI 1902788516) is an individual family provider in San Francisco, California, licensed in California (95035818) and active in the NPI registry since July 2025. He is enrolled in Medicare PECOS and is a graduate of Other (2025).
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Michael Alex Grossman 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.
Medicare Billing Reassignments
3Medicare enrollment records show Michael Grossman reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 2,112 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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
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 Michael Grossman's NPI number?
The NPI number for Michael Grossman is 1902788516. It was assigned to this individual provider in the NPPES registry on July 24, 2025.
Where is Michael Grossman located?
Michael Grossman practices at 505 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 476-1000.
What is Michael Grossman's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Michael Grossman enrolled in Medicare?
Yes. Michael Grossman 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.
Which organizations bill Medicare for Michael Grossman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Grossman reassigns Medicare benefits to 3 organizations: Regents Of The University Of California (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and University Of California San Francisco (San Francisco, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Michael Grossman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Michael Grossman was last updated on September 18, 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.
# Michael Alex Grossman · NPI 1902788516
Family physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since July 24, 2025.
## Identity
- **NPI:** 1902788516 (Entity type: Individual)
- **Enumerated:** July 24, 2025
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 95035818 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 505 PARNASSUS AVE, San Francisco, CA 94143-2204
- **Phone:** (415) 476-1000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of California (NPI 1376613943, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); University Of California San Francisco (NPI 1164512851, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2025
## Record status
- **NPPES last updated:** September 18, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1902788516) · Data from the CMS NPPES public registry.