Alyssa Fae Bacay, DO

Primary specialty

Infectious Disease PhysicianTaxonomy code 207RI0200X

License

1023905 Issued in MA

Practice address

1290 Tremont St
Roxbury, MA 02120-3432

Phone

(617) 427-1000

NPI assigned

Apr 20, 2020

Last updated

Aug 11, 2025By 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 2

Addresses

Medicare fee-for-service enrollment

Enrolled in MA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Interoperability endpoints

• Direct secure messaging: abacay235750@direct.bmc.masshiway.net
• Direct secure messaging: abacay835381@direct.ochin.org

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.

• Boston Medical Center Corporation

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1346218294
  NPD
• Trinity Health of New England Provider Network Organization Inc

  dba Trinity Health Of New England Medical Group

  • Internal Medicine Physician
  • Hartford, CT
  • NPI 1003882812
  NPD (past)
• Trinity Health of New England Provider Network Organization Inc

  dba Trinity Health Of New England Medical Group

  • Internal Medicine Physician
  • Waterville, ME
  • NPI 1134779531
  NPD (past)

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

{
    "created_epoch": "1587340800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754870400000",
    "number": "1205456274",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1290 TREMONT ST",
            "city": "ROXBURY",
            "state": "MA",
            "postal_code": "021203432"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1290 TREMONT ST",
            "city": "ROXBURY",
            "state": "MA",
            "postal_code": "021203432",
            "telephone_number": "617-427-1000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BACAY",
        "first_name": "ALYSSA",
        "middle_name": "FAE",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-04-20",
        "last_updated": "2025-08-11",
        "certification_date": "2025-08-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "1023905",
            "primary": false
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "MA",
            "license": "1023905",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Katharyn M Atkins, M.D.
• Atlantis Physical Therapy Group,Inc,
• Ayan Personal Care Assistance
• Jeannie Marie Baca
• David Paz Bacani, PT, MS
• Magdy Sami Badereldin, MD AND PA
• Alicia Baez
• Furkan Bahar, MD
• Juanita Baker, DMD
• Melanie Ann Baker, RD, LDN

• Infectious Disease Physician in Roxbury, MA
• Providers in Roxbury, MA by specialty
• Infectious Disease Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 11, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.