Denise Schindlar-Ahlgrim, LCSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

091868-01 Issued in NY

Practice address

4 Washington St
Sayville, NY 11782-2004

Phone

(631) 466-7190

NPI assigned

May 31, 2007

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

Enrolled in NY

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Clinical Social Worker

Education

Other, 1996

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Calm Seas Psychotherapy LCSW PLLCGroup PAC ID 9830425867, 5 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

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.

• Calm Seas Psychotherapy, LCSW,PLLC

  • Clinical Social Worker
  • Mt Sinai, NY
  • NPI 1790247765
  Medicare reassignment Care Compare group NPD
• Mary Kathleen Martin Nurse Practitioner in Psychiatry, PLLC

  • Prescribing (Medical) Psychologist
  • Riverhead, NY
  • NPI 1578921623
  NPD (past)

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

{
    "created_epoch": "1180569600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757894400000",
    "number": "1285835538",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4 WASHINGTON ST",
            "city": "SAYVILLE",
            "state": "NY",
            "postal_code": "117822004",
            "telephone_number": "631-466-7190"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4 WASHINGTON ST",
            "city": "SAYVILLE",
            "state": "NY",
            "postal_code": "117822004",
            "telephone_number": "631-466-7190"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SCHINDLAR-AHLGRIM",
        "first_name": "DENISE",
        "credential": "LCSW",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2007-05-31",
        "last_updated": "2025-09-15",
        "certification_date": "2025-09-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "NY",
            "license": "091868-01",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sayville School District
• Sayville Therapeutic Spa Inc
• Lynn Cheryl Schaefer, LCSW
• Stephen Edward Schaller, DMD
• Karen N. Scheck, MAPT, PCS
• Allison Schroder, ALLISON SCHRODER
• Andrea Schuettinger
• Lisa Scrima-Castelli
• Laura P. Segarra
• Elizabeth Ann Severin, RN

• Clinical Social Worker in Sayville, NY
• Providers in Sayville, NY by specialty
• Clinical Social Worker in New York

• 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.