Matthew Ryan McCulloch, M.D.

Primary specialty

Allergy & Immunology PhysicianTaxonomy code 207K00000X

License

A179031 Issued in CA

Practice address

400 Parnassus Ave
San Francisco, CA 94143-2202

Phone

(415) 353-2725

NPI assigned

Mar 31, 2016

Sex

Male

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 CO

Eligible to order & refer

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

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mmcculloch225820@direct.childrenscolorado.org

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.

• University Physicians Incorporated

  • Internal Medicine Physician
  • Aurora, CO
  • NPI 1962461889
  Medicare reassignment NPD
• Children'S Hospital Colorado

  • Clinical Social Worker
  • Aurora, CO
  • NPI 1174282776
  NPD
• University Physicians Incorporated

  • Geriatric Medicine (Internal Medicine) Physician
  • Denver, CO
  • NPI 1942834262
  NPD
• University Physicians, Incorporated

  • Sports Medicine (Orthopaedic Surgery) Physician
  • Denver, CO
  • NPI 1275045049
  NPD

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

{
    "created_epoch": "1459382400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775520000000",
    "number": "1326401019",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 110429",
            "city": "AURORA",
            "state": "CO",
            "postal_code": "800420429"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "400 PARNASSUS AVE",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941432202",
            "telephone_number": "415-353-2725"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "13123 E 16th Ave",
            "address_purpose": "LOCATION",
            "city": "Aurora",
            "state": "CO",
            "postal_code": "800457106",
            "country_code": "US",
            "telephone_number": "720-777-2195",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2301 Erwin Rd",
            "address_purpose": "LOCATION",
            "city": "Durham",
            "state": "NC",
            "postal_code": "277054699",
            "country_code": "US",
            "telephone_number": "919-684-8111",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MCCULLOCH",
        "first_name": "MATTHEW",
        "middle_name": "RYAN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-03-31",
        "last_updated": "2026-04-07",
        "certification_date": "2026-04-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0201X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Allergy/Immunology",
            "state": "CO",
            "license": "DR.0063979",
            "primary": false
        },
        {
            "code": "207K00000X",
            "taxonomy_group": "",
            "desc": "Allergy & Immunology",
            "state": "CA",
            "license": "A179031",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Stephen Michael McCrory, RN
• Timothy McCubrey
• Paul McCue McCue
• Caravella McCuistian, PHD
• Ashley McCulloch, M.P.T.
• Shauna Lea McCulloch, L.A.C.
• Arvan McCullough
• Jill Christine McCullough
• Mary McCullough, RD, LD
• Paul Edward McCullough, MFT

• Allergy & Immunology Physician in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Allergy & Immunology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 7, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.