NPIMap

Individual provider Active NPI

Robert Charles Mackersie, MD

  • Surgery Physician
  • San Francisco, CA
National Provider Identifier
1831144583
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Surgery PhysicianTaxonomy code 208600000X
License
A34587 Issued in CA
Practice address
1001 Potrero Ave
RM 3A37
San Francisco, CA 94110-3518
Phone
(415) 206-4634
Fax
(415) 206-5484
NPI assigned
May 23, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Surgery Physician 208600000X A34587 CA Primary
Surgical Critical Care Physician 2086S0102X A34587 CA

Addresses

Primary practice location

1001 Potrero Ave
RM 3A37
San Francisco, CA 94110-3518

Mailing address

PO Box 7464
San Francisco, CA 94120-7464
Phone (415) 206-3103

Other identifiers 1

IdentifierTypeStateIssuer
00A345870MedicaidCA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20081216000685 CA Practitioner - Critical Care (Intensivists)Practitioner - General Surgery 1052473618 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Critical Care (Intensivists)Also: General Surgery
Education
Michigan State University College of Human Medicine, 1978
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
University of California SFGH Medical GroupGroup PAC ID 5496668410, 566 clinicians

Practice addresses (Care Compare)

1001 Potrero Ave
San Francisco, CA 94110-3518
Phone (415) 206-4632

Hospital & facility affiliations

  • Zuckerberg San Francisco General Hosp & Trauma Ctr Hospital, San Francisco, CA, CCN 050228

Merit-based Incentive Payment System (MIPS)

Final score
97.28 of 100Reported as group
Quality
89.92
Promoting interoperability
100
Improvement activities
40
Cost
78.23

Procedures performed for Medicare patients

ProcedureNumber of procedures
Hernia repair - groin (open)1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
A34587CAMDSurgical Critical Care Physician

Practice roles

OrganizationSpecialtyStatusNew patients
City and County of San Francisco CurrentSince Nov 10, 2019 Accepting new patients
City & County of San Francisco Current Accepting new patients
University of California SFGH Medical Group Surgery CurrentSince Jan 1, 2000 Accepting new patients
City & County of San Francisco CurrentSince Nov 10, 2019 Accepting new patients

Locations

1001 Potrero Ave
San Francisco, CA 94110
Phone (415) 206-2305

1001 Potrero Ave
Rm 4F4
San Francisco, CA 94110
Phone (628) 206-8314

1001 Potrero Ave
Rm 3A
San Francisco, CA 94110
Phone (415) 206-4632

1001 Potrero Ave
Bldg 5
San Francisco, CA 94110
Phone (628) 206-5753

1001 Potrero Ave
Rm 3A35
San Francisco, CA 94110
Phone (415) 206-4632

1001 Potrero Ave
Rm 3A37
San Francisco, CA 94110
Phone (415) 206-4634

1001 Potrero Ave
Ste 4F4
San Francisco, CA 94110
Phone (415) 206-5274

Organizations & group practices 17

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

View all 17

Hospital & facility affiliations 2

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1148342400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1831144583",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7464",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941207464",
            "telephone_number": "415-206-3103",
            "fax_number": "415-206-3872"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1001 POTRERO AVE",
            "address_2": "RM 3A37",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941103518",
            "telephone_number": "415-206-4634",
            "fax_number": "415-206-5484"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MACKERSIE",
        "first_name": "ROBERT",
        "middle_name": "CHARLES",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-23",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "CA",
            "license": "A34587",
            "primary": true
        },
        {
            "code": "2086S0102X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Critical Care",
            "state": "CA",
            "license": "A34587",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00A345870",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.