Katherine Margaret Fair, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

1023397 Issued in MA

Practice address

725 Albany St # 9B
Boston, MA 02118-3549

Phone

(617) 638-7480

NPI assigned

Apr 7, 2019

Last updated

Apr 13, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 4

Addresses

Medicare fee-for-service enrollment

Enrolled in MA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Internal Medicine

Education

University of Pittsburgh School of Medicine, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Lahey Clinic IncGroup PAC ID 2264336528, shared by 3 NPIs, 1,381 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

93.85 of 100Reported as apm

Quality

74.6

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: kfair242446@direct.bmc.masshiway.net

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

• Lahey Clinic, Inc

  • Internal Medicine Physician
  • Peabody, MA
  • NPI 1063447316
  Medicare reassignment
• Lahey Clinic, Inc.

  dba Lahey Clinic

  • Internal Medicine Physician
  • Burlington, MA
  • NPI 1538194980
  Medicare reassignment
• Boston Medical Center Corporation

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1346218294
  NPD
• Evans Medical Foundation, Inc.

  dba Boston University Internal Medicine Associates

  • Internal Medicine Physician
  • Boston, MA
  • NPI 1912954124
  NPD

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

{
    "created_epoch": "1554595200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776038400000",
    "number": "1629531777",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "41 MALL RD",
            "city": "BURLINGTON",
            "state": "MA",
            "postal_code": "018050001",
            "telephone_number": "781-744-8085"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "725 ALBANY ST # 9B",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021183549",
            "telephone_number": "617-638-7480"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "41 Mall Rd",
            "address_purpose": "LOCATION",
            "city": "Burlington",
            "state": "MA",
            "postal_code": "018050001",
            "country_code": "US",
            "telephone_number": "781-744-8000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FAIR",
        "first_name": "KATHERINE",
        "middle_name": "MARGARET",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-04-07",
        "last_updated": "2026-04-13",
        "certification_date": "2026-04-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "1023397",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WA",
            "license": "MD61184746",
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "MA",
            "license": "PHY104778",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "WA",
            "license": "MD61184746",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Shannon Yvonne Fahy, PHARMD
• Caitlin Fai
• Courtney Faiella, RN BCN-FNP
• Robert Fain, MD
• Salomao Faintuch, M.D.
• Rick A Fair
• Kathleen G Fairbanks, DPT/PT
• Sarah Fairbrook, CRNP
• Paul Richard Faircloth Sr., MSW
• Delores A Fairweather, R.N.

• Internal Medicine Physician in Boston, MA
• Providers in Boston, MA by specialty
• Internal Medicine Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.