Otter Creek Psychotherapy, PLLC

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

Legal business name

OTTER CREEK PSYCHOTHERAPY, PLLC

Practice address

42 E St 8TH 3319
Boston, MA 02111

Phone

(781) 720-4752

Fax

(781) 758-5283

NPI assigned

Oct 31, 2025

Organization subpart

No

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

Authorized official

Name

Mr. William Christopher Baerthlein, LICSWNPI 1720437197

Title

Clinical Social Worker

Phone

(781) 720-4752

Specialties & licenses 1

Addresses

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• William Christopher Baerthlein, LICSW

  • Clinical Social Worker
  • Bedford, MA
  • NPI 1720437197
  NPD Authorized official

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

{
    "created_epoch": "1761868800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1761868800000",
    "number": "1932078649",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "101 MIDDLESEX TPKE STE 6 #313",
            "city": "BURLINGTON",
            "state": "MA",
            "postal_code": "01803",
            "telephone_number": "781-720-4752",
            "fax_number": "781-758-5283"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "42 E ST 8TH 3319",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "02111",
            "telephone_number": "781-720-4752",
            "fax_number": "781-758-5283"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "OTTER CREEK PSYCHOTHERAPY, PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-10-31",
        "last_updated": "2025-10-31",
        "certification_date": "2025-10-14",
        "status": "A",
        "authorized_official_last_name": "BAERTHLEIN",
        "authorized_official_first_name": "WILLIAM",
        "authorized_official_middle_name": "CHRISTOPHER",
        "authorized_official_title_or_position": "CLINICAL SOCIAL WORKER",
        "authorized_official_telephone_number": "781-720-4752",
        "authorized_official_name_prefix": "Mr.",
        "authorized_official_credential": "LICSW"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Social Worker, Clinical",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Yuko Otsubo, DMD,BDS,CAGS,MSD
• Harald C. Ott, MD
• Leah Ott, MD
• Mary Jane Ott, NP
• Patrick Alexander Ott, MD
• Taylor D Ottesen, MD, MBA
• Michael William Otto, PHD
• Karim Ouahchi, M.D.
• Jodie Ouahed, M.D.
• Kei Ouchi, MD, MPH

• Clinical Social Worker in Boston, MA
• Providers in Boston, MA by specialty
• Clinical Social Worker in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 31, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.