NPIMap

Individual provider Active NPI

Michael Natter, MD

  • Endocrinology, Diabetes & Metabolism Physician
  • San Francisco, CA
National Provider Identifier
1558896035
Registry record updated Feb 23, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X
License
A205547 Issued in CA
Practice address
400 Parnassus Ave RM A556
San Francisco, CA 94143-2202
Phone
(415) 353-2350
NPI assigned
Apr 21, 2017
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 23, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Endocrinology, Diabetes & Metabolism Physician 207RE0101X 302904 NY
Endocrinology, Diabetes & Metabolism Physician 207RE0101X A205547 CA Primary

Addresses

Primary practice location

400 Parnassus Ave RM A556
San Francisco, CA 94143-2202

Mailing address

550 1St Ave
New York, NY 10016-6402
Phone (212) 263-5506

Other practice location 1

550 1st Ave
New York, NY 10016-6402
Phone (212) 263-5506

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY, CA2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20220816002504 NY Practitioner - Endocrinology 9931447505 Reassigns benefits to 1 organization
I20260311003550 CA Practitioner - EndocrinologyPractitioner - Internal Medicine 9931447505 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Endocrinology
Education
Other, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
New York UniversityGroup PAC ID 1355232422, 5,925 clinicians

Practice addresses (Care Compare)

111 Broadway
New York, NY 10006-1901
Phone (212) 263-9700

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
90.8 of 100Reported as group
Quality
91.79
Promoting interoperability
100
Improvement activities
40
Cost
75.18

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
302904NYMDLicensed Practical Nurse
A205547CAMDEndocrinology, Diabetes & Metabolism Physician

Practice roles

OrganizationSpecialtyStatusNew patients
New York University CurrentSince Sep 1, 2022 Accepting new patients
University of California San Francisco CurrentSince Feb 23, 2026 Accepting new patients
University of California San Francisco CurrentSince Feb 23, 2026 Accepting new patients
UCSF Medical Group Business Services CurrentSince Feb 23, 2026 Accepting new patients
New York University CurrentSince Sep 1, 2022 Accepting new patients
Regents of the University of California Endocrinology, Diabetes & Metabolism CurrentSince Feb 23, 2026 Accepting new patients
UCSF Medical Group Business Services CurrentSince Feb 23, 2026 Accepting new patients

Locations

400 Parnassus Ave
Rm A556
San Francisco, CA 94143
Phone (415) 353-2350

550 1st Ave
New York, NY 10016
Phone (212) 263-3293

14 Wall St
Fl 9
Wall Street, NY 10005
Phone (646) 501-3224

Organizations & group practices 8

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.

Hospital & facility affiliations 7

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": "1492732800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771804800000",
    "number": "1558896035",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "550 1ST AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100166402",
            "telephone_number": "212-263-5506"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "400 PARNASSUS AVE RM A556",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941432202",
            "telephone_number": "415-353-2350"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "550 1st Ave",
            "address_purpose": "LOCATION",
            "city": "New York",
            "state": "NY",
            "postal_code": "100166402",
            "country_code": "US",
            "telephone_number": "212-263-5506",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NATTER",
        "first_name": "MICHAEL",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-04-21",
        "last_updated": "2026-02-23",
        "certification_date": "2026-02-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "NY",
            "license": "302904",
            "primary": false
        },
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "CA",
            "license": "A205547",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.