Individual provider Active NPI

Stephen Patrick Markowski, AGPCNP

  • Nurse Practitioner
  • Waltham, MA
National Provider Identifier
1366024523
Registry record updated May 12, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nurse PractitionerTaxonomy code 363L00000X
License
RN2371065 Issued in MA
Practice address
281 Winter St FL 2
Waltham, MA 02451-8740
Phone
(781) 373-2940
NPI assigned
Apr 26, 2021
Last updated
May 12, 2026By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on May 12, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Primary Care Nurse Practitioner 363LP2300X 95015353 CA
Registered Nurse 163W00000X RN2371065 MA
Nurse Practitioner 363L00000X RN2371065 MA Primary

Addresses

Primary practice location

281 Winter St FL 2
Waltham, MA 02451-8740

Mailing address

281 Winter St FL 2
Waltham, MA 02451-8740
Phone (781) 373-2940

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA, MA2 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
I20210624003811 CA Practitioner - Nurse Practitioner 7810398005 Reassigns benefits to 1 organization
I20230222000783 MA Practitioner - Nurse Practitioner 7810398005 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Emerson Practice Associates, IncGroup PAC ID 8123188117, 247 clinicians
Heart Center of Metrowest, Inc.Group PAC ID 9931150166, 16 clinicians

Practice addresses (Care Compare)

133 Old Rd to 9 Acre Cor
Concord, MA 01742-4159
Phone (978) 287-3020

99 Lincoln St
Framingham, MA 01702-6327
Phone (508) 875-4811

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
RN2371065MAMDRegistered Nurse

Practice roles

OrganizationSpecialtyStatusNew patients
Albion Medical Partners of California West P C CurrentSince Jun 1, 2021 Accepting new patients
Heart Center of Metrowest Inc CurrentSince Mar 13, 2023 Accepting new patients

Locations

12900 Park Plaza Dr
Ste 150
Cerritos, CA 90703
Phone (562) 622-2800

12900 Park Plaza Dr
Ste 700
Cerritos, CA 90703
Phone (562) 622-2800

99 Lincoln St
Framingham, MA 01702
Phone (508) 875-4811

Interoperability endpoints

  • Direct secure messaging: stephen.markowski.p1@direct.caremorewest.nextgenshare.com

Organizations & group practices 3

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.

NPI Registry JSON

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

{
    "created_epoch": "1619395200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778544000000",
    "number": "1366024523",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "281 WINTER ST FL 2",
            "city": "WALTHAM",
            "state": "MA",
            "postal_code": "024518740",
            "telephone_number": "781-373-2940"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "281 WINTER ST FL 2",
            "city": "WALTHAM",
            "state": "MA",
            "postal_code": "024518740",
            "telephone_number": "781-373-2940"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARKOWSKI",
        "first_name": "STEPHEN",
        "middle_name": "PATRICK",
        "name_prefix": "Mr.",
        "credential": "AGPCNP",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2021-04-26",
        "last_updated": "2026-05-12",
        "certification_date": "2026-05-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP2300X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Primary Care",
            "state": "CA",
            "license": "95015353",
            "primary": false
        },
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "MA",
            "license": "RN2371065",
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "MA",
            "license": "RN2371065",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Waltham, MA

Sources for this page

Verify at the official NPI Registry.