Individual provider Active NPI

Margaret May McBurney Koes, NP

  • Nurse Practitioner
  • Stanford, CA
National Provider Identifier
1265836191
Registry record updated Dec 30, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nurse PractitionerTaxonomy code 363L00000X
License
95009258 Issued in CA
Practice address
300 Pasteur Dr
Stanford, CA 94305-2200
Phone
(650) 723-4000
NPI assigned
Oct 21, 2014
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 30, 2025

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

Specialties & licenses 5

Specialty (taxonomy)CodeLicenseStatePrimary
Nurse Practitioner 363L00000X RN1033479 DC
Nurse Practitioner 363L00000X RN311083 GA
Nurse Practitioner 363L00000X 95009258 CA Primary
Adult Health Nurse Practitioner 363LA2200X 95009258 CA
Family Nurse Practitioner 363LF0000X 0024173488 VA

Addresses

Primary practice location

300 Pasteur Dr
Stanford, CA 94305-2200

Mailing address

PO Box 9007
Charlottesville, VA 22906-9007

Other practice location 1

2955 Ivy Rd Ste 201
Charlottesville, VA 22903-9353
Phone (202) 715-5060

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA, GA2 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20180803002226 CA Practitioner - Nurse Practitioner 1658695598 Reassigns benefits to 1 organization
I20240307001449 GA Practitioner - Nurse Practitioner 1658695598 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
University of Virginia School of Medicine, 2014
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
The Emory Clinic IncGroup PAC ID 8820901408, 3,507 clinicians

Practice addresses (Care Compare)

1365 Clifton Rd NE
Atlanta, GA 30322-1013
Phone (404) 778-7525

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
88.53 of 100Reported as group
Quality
87.08
Promoting interoperability
100
Improvement activities
40
Cost
69.51

Merit-based Incentive Payment System (MIPS)

Final score
94.51 of 100Reported as apm
Quality
80.61
Promoting interoperability
100
Improvement activities
40

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
RN1033479DCMDNurse Practitioner
RN311083GAMDNurse Practitioner
95009258CAMDAdult Health Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
The Emory Clinic Inc CurrentSince Feb 14, 2024 Accepting new patients
Stanford Health Care CurrentSince Jul 1, 2018 Accepting new patients
Stanford Health Care Current Accepting new patients
Stanford Health Care CurrentSince Jul 1, 2018 Accepting new patients

Locations

300 Pasteur Dr
Stanford, CA 94305
Phone (650) 498-5710

2201 Henderson Mill Rd NE
Ste 160
Atlanta, GA 30345
Phone (404) 251-2193

1365 Clifton Rd NE
Atlanta, GA 30322
Phone (404) 778-7525

Interoperability endpoints

  • Direct secure messaging: mkoes816817@direct.emory.org

Organizations & group practices 4

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 1

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": "1413849600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767052800000",
    "number": "1265836191",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 9007",
            "city": "CHARLOTTESVILLE",
            "state": "VA",
            "postal_code": "229069007"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2955 Ivy Rd Ste 201",
            "address_purpose": "LOCATION",
            "city": "Charlottesville",
            "state": "VA",
            "postal_code": "229039353",
            "country_code": "US",
            "telephone_number": "202-715-5060",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KOES",
        "first_name": "MARGARET",
        "middle_name": "MAY MCBURNEY",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2014-10-21",
        "last_updated": "2025-12-30",
        "certification_date": "2025-12-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "DC",
            "license": "RN1033479",
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "GA",
            "license": "RN311083",
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "CA",
            "license": "95009258",
            "primary": true
        },
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "CA",
            "license": "95009258",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "VA",
            "license": "0024173488",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Stanford, CA

Sources for this page

Verify at the official NPI Registry.