Alexandra Gronczewski

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

26NJ01475100 Issued in NJ

Practice address

20 Elm Rd
Princeton, NJ 08540-2502

Phone

(609) 610-3222

NPI assigned

Apr 24, 2023

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in NJ

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

Specialty

Nurse Practitioner

Education

Other, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Princeton Dermatology AssociatespcGroup PAC ID 1052377215, 16 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

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.

• Princeton Dermatology Associates PC

  • Dermatology Physician
  • Princeton, NJ
  • NPI 1336104561
  Medicare reassignment Care Compare group NPD
• Princeton Dermatology Associates II LLC

  • Dermatology Physician
  • Princeton, NJ
  • NPI 1629946918
  Medicare reassignment NPD

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

{
    "created_epoch": "1682294400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757894400000",
    "number": "1477241958",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "20 ELM RD",
            "city": "PRINCETON",
            "state": "NJ",
            "postal_code": "085402502",
            "telephone_number": "609-610-3222"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20 ELM RD",
            "city": "PRINCETON",
            "state": "NJ",
            "postal_code": "085402502",
            "telephone_number": "609-610-3222"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "208 Bunn Dr",
            "address_purpose": "LOCATION",
            "city": "Princeton",
            "state": "NJ",
            "postal_code": "085402851",
            "country_code": "US",
            "telephone_number": "609-683-4999",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GRONCZEWSKI",
        "first_name": "ALEXANDRA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2023-04-24",
        "last_updated": "2025-09-15",
        "certification_date": "2025-09-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "NJ",
            "license": "26NJ01475100",
            "primary": true
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "NJ",
            "license": "26NJ014751000",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Leslie Robin Greenberg, MD
• Michael Steven Grenis, MD
• Dolores Grewal, PA-C
• Martin Eamon Griffis, MD
• Lisa M Grine, APN
• Craig Anthony Gronczewski, M.D.
• Jeffrey Grosser, MHS, HO, REHS
• Karen Grosser, PHARMD
• Leonard A Grossman, M.D.
• Rachel M Grossman, M.D.

• Family Nurse Practitioner in Princeton, NJ
• Providers in Princeton, NJ by specialty
• Family Nurse Practitioner in New Jersey

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 15, 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.
• 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.