Gretchen Louise Selby, LMSW

Primary specialty

Social WorkerTaxonomy code 104100000X

License

M-057777 Issued in NM

Practice address

1505 15TH St
Los Alamos, NM 87544-3000

Phone

(505) 662-3264

Fax

(505) 662-9707

NPI assigned

Jun 18, 2006

Sex

Female

Sole proprietor

No

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

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.

Opted out of Medicare

Yes, effective Jan 1, 2013 through Jan 1, 2027

Medicare enrollment (NPD)

Not enrolled

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.

• GLS Clinical Social Work LLC

  • Clinical Social Worker
  • Los Alamos, NM
  • NPI 1750753927
  NPD (past) Authorized official

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

{
    "created_epoch": "1150588800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1457396137",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1505 15TH ST",
            "city": "LOS ALAMOS",
            "state": "NM",
            "postal_code": "875443000",
            "telephone_number": "505-662-3264",
            "fax_number": "505-662-9707"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1505 15TH ST",
            "city": "LOS ALAMOS",
            "state": "NM",
            "postal_code": "875443000",
            "telephone_number": "505-662-3264",
            "fax_number": "505-662-9707"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SELBY",
        "first_name": "GRETCHEN",
        "middle_name": "LOUISE",
        "credential": "LMSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-06-18",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "NM",
            "license": "M-057777",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Lauren Scandura, PA
• Clay Schneider, CNP
• Karen Anne Schneider, FNP
• Shelley P Schoonover, MD
• Brandi Seekins, LMSW
• Rita Anne Senator, RN, MSN
• Yunkyeong Seong
• Serna Solutions LLC
• Santina Nicole Shije, LMSW
• Lisa Shin, O.D.

• Social Worker in Los Alamos, NM
• Providers in Los Alamos, NM by specialty
• Social Worker in New Mexico

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; 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; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.