Alyssa Walters Haas, PAC

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

12418 Issued in GA

Practice address

150 N Park TRL Ste B
Stockbridge, GA 30281-7372

Phone

(770) 507-0909

Fax

(770) 507-1919

NPI assigned

May 30, 2024

Last updated

Apr 21, 2026By the provider in NPPES

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

Other names 1

• Alyssa Graham Walters Former name

Medicare fee-for-service enrollment

Enrolled in GA

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

Physician Assistant

Education

Other, 2024

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Aga Clinical Services, LLCGroup PAC ID 7719273838, 35 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Piedmont Henry Hospital Hospital, Stockbridge, GA, CCN 110191

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

Practice roles

Interoperability endpoints

• FHIR API: https://fhir-myrecord.cerner.com/r4/d88010de-d791-42d4-b72d-513f9afc5ed1/

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Aga Clinical Services, LLC

  • Gastroenterology Physician
  • Atlanta, GA
  • NPI 1295193399
  Medicare reassignment Care Compare group
• Aga, LLC

  dba Atlanta Gastroenterology Associates

  • Gastroenterology Physician
  • Atlanta, GA
  • NPI 1124064118
  Medicare reassignment
• Aga Professional Services, LLC

  • Gastroenterology Physician
  • Atlanta, GA
  • NPI 1063799120
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Piedmont Henry Hospital, Inc.

  • General Acute Care Hospital
  • Stockbridge, GA
  • NPI 1225034333
  Care Compare affiliation

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

{
    "created_epoch": "1717027200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776729600000",
    "number": "1770323305",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "150 N PARK TRL STE B",
            "city": "STOCKBRIDGE",
            "state": "GA",
            "postal_code": "302817372",
            "telephone_number": "770-507-0909",
            "fax_number": "770-507-1919"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "150 N PARK TRL STE B",
            "city": "STOCKBRIDGE",
            "state": "GA",
            "postal_code": "302817372",
            "telephone_number": "770-507-0909",
            "fax_number": "770-507-1919"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAAS",
        "first_name": "ALYSSA",
        "middle_name": "WALTERS",
        "credential": "PAC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-05-30",
        "last_updated": "2026-04-21",
        "certification_date": "2026-04-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "GA",
            "license": "12418",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "ALYSSA",
            "last_name": "WALTERS",
            "middle_name": "GRAHAM",
            "credential": "PAC",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Brij B Gulati, MD
• Kevin Gunderson, DO
• David Sahid Gunn, P.T.
• Tarsem L Gupta, MD
• Jordan Nicole Guy, PMHNP-BC
• Jamie Kayla Haber, MD
• Nyuana Hale
• Amanda Faye Hall, CSA
• April Hall
• Darryl Crosswright Hall, M.D.

• Physician Assistant in Stockbridge, GA
• Providers in Stockbridge, GA by specialty
• Physician Assistant in Georgia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 21, 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.
• 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.