Kathryn Stiff, NP

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

RN2336622 Issued in MA

Practice address

55 Fruit St
Boston, MA 02114-2621

Phone

(617) 726-2000

NPI assigned

Jan 23, 2012

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Other names 1

• Kathryn Holland Other name

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: No

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: stiff.kathryn.bwh@direct.partners.masshiway.net
• Direct secure messaging: stiff.kathryn.mgh@direct.partners.masshiway.net

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.

• Brigham & Womens Physicians Organization Inc

  • Internal Medicine Physician
  • Boston, MA
  • NPI 1033535497
  Medicare reassignment NPD
• Massachusetts General Physicians Organization Inc

  • Dermatology Physician
  • Boston, MA
  • NPI 1801874573
  Medicare reassignment NPD
• The General Hospital Corporation

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1023049236
  Medicare reassignment NPD
• Brigham and Women'S Hospital

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1093885816
  NPD
• General Hospital Corp

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1508390014
  NPD
• Pratt Medical Group, Inc

  • Internal Medicine Physician
  • Boston, MA
  • NPI 1275570319
  NPD
• Pratt Medical Group, Inc

  • Pulmonary Disease Physician
  • Boston, MA
  • NPI 1508187642
  NPD

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

{
    "created_epoch": "1327276800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1746489600000",
    "number": "1134490188",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "55 FRUIT ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142621"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 FRUIT ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142621",
            "telephone_number": "617-726-2000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "STIFF",
        "first_name": "KATHRYN",
        "credential": "NP",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2012-01-23",
        "last_updated": "2025-05-06",
        "certification_date": "2025-05-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "WA",
            "license": "AP60252118",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "MA",
            "license": "RN2336622",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "KATHRYN",
            "last_name": "HOLLAND",
            "credential": "ARNP",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• Carolyn A Stickney, MD
• Andrea Piraino Stidsen, MSW, LICSW
• Daniel B Stiefel, D.M.D.
• Elizabeth A Stier, MD
• Bryan Stierman, MD
• Kathleen Tope Stiffler, CPNP
• Lawrence Pilkington Stifler, PHD
• Tijana Stijacic, D.M.D.
• Danielle Lubrano Stiles, MS/CCC-A
• Derek Jason Stiles, PHD

• Family Nurse Practitioner in Boston, MA
• Providers in Boston, MA by specialty
• Family Nurse Practitioner in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 6, 2025; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.