ROBERT CHARLES MACKERSIE MD
NPI 1831144583
Surgery in San Francisco, CA
About Robert Charles Mackersie Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROBERT CHARLES MACKERSIE MD (NPI 1831144583) is an individual surgery provider in San Francisco, California, licensed in California (A34587) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of Michigan State University College Of Human Medicine (1978).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
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
Robert Charles Mackersie 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.
Medicare Billing Reassignments
2Medicare enrollment records show Robert Mackersie reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94110
- Reassigned Medicare billing, California enrollment
- 1,573 clinicians in this Medicare group
San Francisco, CA 94110
- Reassigned Medicare billing, California enrollment
- 87 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 94110 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 94110
SAN FRANCISCO, CA 94110
SAN FRANCISCO, CA 94110
SAN FRANCISCO, CA 94110
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 Robert Mackersie's NPI number?
The NPI number for Robert Mackersie is 1831144583. It was assigned to this individual provider in the NPPES registry on May 23, 2006.
Where is Robert Mackersie located?
Robert Mackersie practices at 1001 Potrero Ave Rm 3a37, San Francisco, CA 94110. The listed phone number is (415) 206-4634.
What is Robert Mackersie's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Robert Mackersie enrolled in Medicare?
Yes. Robert Mackersie 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 Robert Mackersie's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Mackersie reassigns Medicare benefits to 2 organizations: City & County Of San Francisco (San Francisco, CA) and University Of California Sfgh Medical Group (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 Robert Mackersie'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 Robert Mackersie 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 3 months 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.
# Robert Charles Mackersie, MD · NPI 1831144583
Surgery physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since May 23, 2006.
## Identity
- **NPI:** 1831144583 (Entity type: Individual)
- **Enumerated:** May 23, 2006
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** A34587 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1001 POTRERO AVE, RM 3A37, San Francisco, CA 94110-3518
- **Phone:** (415) 206-4634 · **Fax:** (415) 206-5484
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): City & County Of San Francisco (NPI 1083648810, San Francisco, CA); University Of California Sfgh Medical Group (NPI 1033913959, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Michigan State University College Of Human Medicine, class of 1978
## Record status
- **NPPES last updated:** July 13, 2026
- **Other identifiers:** Medicaid 00A345870 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1831144583) · Data from the CMS NPPES public registry.