DR. MICHAEL S BLUM MD
NPI 1972568889
Internal Medicine - Cardiovascular Disease in San Francisco, CA
About Dr. Michael S Blum Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL S BLUM MD (NPI 1972568889) is an individual cardiovascular disease provider in San Francisco, California, licensed in California (G87207) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Michael S Blum Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Michael Blum 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
- 5,645 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
- 2,112 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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Blum's NPI number?
The NPI number for Michael Blum is 1972568889. It was assigned to this individual provider in the NPPES registry on April 20, 2006.
Where is Michael Blum located?
Michael Blum practices at 350 Parnassus Ave 3rd Floor, San Francisco, CA 94143. The listed phone number is (415) 353-2873.
What is Michael Blum's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Michael Blum enrolled in Medicare?
Yes. Michael Blum is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Michael Blum's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Blum reassigns Medicare benefits to 3 organizations: University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and Regents Of The University Of California (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 Blum'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 Blum was last updated on September 4, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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. Michael S Blum, MD · NPI 1972568889
Cardiovascular Disease physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since April 20, 2006.
## Identity
- **NPI:** 1972568889 (Entity type: Individual)
- **Enumerated:** April 20, 2006
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** G87207 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 350 PARNASSUS AVE, 3RD FLOOR, San Francisco, CA 94143-0001
- **Phone:** (415) 353-2873 · **Fax:** (415) 353-2528
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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): University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); Regents Of The University Of California (NPI 1376613943, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 4, 2008
- **Other identifiers:** Medicaid 00G872070 (CA); Medicare PIN 00G872070 (CA); Medicare UPIN G37301 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1972568889) · Data from the CMS NPPES public registry.