Individual provider Active NPI

Karen D Spitler, APRN, BC

  • Adult Health Nurse Practitioner
  • Cambridge, MA
National Provider Identifier
1225001209
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Adult Health Nurse PractitionerTaxonomy code 363LA2200X
License
152046 Issued in MA
Practice address
77 Mass Ave
Medical E23-395
Cambridge, MA 02139-4301
Phone
(617) 253-1311
NPI assigned
Feb 9, 2006
Sex
Female
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 1

Specialty (taxonomy)CodeLicenseStatePrimary
Adult Health Nurse Practitioner 363LA2200X 152046 MA Primary

Addresses

Primary practice location

77 Mass Ave
Medical E23-395
Cambridge, MA 02139-4301

Mailing address

32 Telegraph Hill Rd
Marshfield, MA 02050-2523
Phone (781) 837-7270

Other identifiers 1

IdentifierTypeStateIssuer
NP4434OtherMABLUE CROSS

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20040412000954 MA Practitioner - Nurse Practitioner 6406840644 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 1985
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Massachusetts Institute of TechnologyGroup PAC ID 5597658666, 55 clinicians

Practice addresses (Care Compare)

25 Carleton St
Cambridge, MA 02142-1323
Phone (617) 258-6896

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Massachusetts Institute of Technology CurrentSince Jan 2, 2004 Accepting new patients

Locations

25 Carleton St
Cambridge, MA 02142
Phone (617) 253-0556

Organizations & group practices 1

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.

NPI Registry JSON

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

{
    "created_epoch": "1139443200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1225001209",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "32 TELEGRAPH HILL RD",
            "city": "MARSHFIELD",
            "state": "MA",
            "postal_code": "020502523",
            "telephone_number": "781-837-7270"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "77 MASS AVE",
            "address_2": "MEDICAL E23-395",
            "city": "CAMBRIDGE",
            "state": "MA",
            "postal_code": "021394301",
            "telephone_number": "617-253-1311"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SPITLER",
        "first_name": "KAREN",
        "middle_name": "D",
        "credential": "APRN, BC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-02-09",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "MA",
            "license": "152046",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE CROSS",
            "identifier": "NP4434",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Cambridge, MA

Sources for this page

Verify at the official NPI Registry.