Marietta H. Whittlesey, M.S. L.P.C.

Primary specialty

Mental Health CounselorTaxonomy code 101YM0800X

License

2678 Issued in CT

Practice address

6 New St
Sharon, CT 06069-2077

Phone

(518) 398-9637

NPI assigned

Dec 18, 2014

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Opted out of Medicare

Yes, effective Sep 25, 2024 through Sep 25, 2026

Medicare enrollment (NPD)

Not enrolled

Credentials

Master of Science

State licenses

Practice roles

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.

• Marietta Whittlesey LPC LLC

  • Professional Counselor
  • Lakeville, CT
  • NPI 1487194213
  NPD (past) Authorized official

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

{
    "created_epoch": "1418860800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753833600000",
    "number": "1801294186",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 125",
            "city": "ANCRAMDALE",
            "state": "NY",
            "postal_code": "125030125",
            "telephone_number": "518-398-9637"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6 NEW ST",
            "city": "SHARON",
            "state": "CT",
            "postal_code": "060692077",
            "telephone_number": "518-398-9637"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WHITTLESEY",
        "first_name": "MARIETTA",
        "middle_name": "H.",
        "credential": "M.S. L.P.C.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2014-12-18",
        "last_updated": "2025-07-30",
        "certification_date": "2025-07-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": "CT",
            "license": "2678",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Vassar Health Quest Medical Practice of Connecticut Inc.
• Allison Jane Vieira, RD
• Ellen M Walker, PT
• Katie Nicole Weiser
• Haley M Wheeler, MA. CCC - SLP
• Andrew S Whyte, DO
• William H. Zovickian, DDS
• Jared B Zelman, MD
• David Charles Zimmerman, DO
• William H Zovickian, DDS

• Mental Health Counselor in Sharon, CT
• Providers in Sharon, CT by specialty
• Mental Health Counselor in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 30, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.