Individual provider Active NPI

Regi Ramanathan, MBBS

  • Pediatric Cardiology Physician
  • Ann Arbor, MI
National Provider Identifier
1245793736
Registry record updated Jul 15, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatric Cardiology PhysicianTaxonomy code 2080P0202X
License
4301508930 Issued in MI
Practice address
1500 E Medical Center Dr
Ann Arbor, MI 48109-5000
Phone
(734) 936-4000
NPI assigned
Apr 11, 2019
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 15, 2026

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatrics Physician 208000000X 66152 AZ
Pediatric Cardiology Physician 2080P0202X 4301508930 MI Primary
Student in an Organized Health Care Education/Training Program 390200000X
Pediatrics Physician 208000000X 4301508930 MI

Addresses

Primary practice location

1500 E Medical Center Dr
Ann Arbor, MI 48109-5000

Mailing address

3621 S State St
Ann Arbor, MI 48108-1633
Phone (734) 647-5299

Other practice location 1

1919 E Thomas Rd
Phoenix, AZ 85016-7710
Phone (602) 546-2923

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
66152AZMDPediatrics Physician
4301508930MIMDPediatric Cardiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
District Medical Group, Inc CurrentSince Aug 1, 2022 Accepting new patients
District Medical Group, Inc CurrentSince Aug 1, 2022 Accepting new patients
Phoenix Children'S Hospital Pediatrics Current Accepting new patients
Phoenix Children'S Medical Group CurrentSince Jul 27, 2022 Accepting new patients
District Medical Group, Inc Current Accepting new patients
District Medical Group, Inc Family Medicine Past Accepting new patients

Locations

2525 E Roosevelt St
Phoenix, AZ 85008
Phone (602) 344-1015

2601 E Roosevelt St
Phoenix, AZ 85008
Phone (602) 220-0298

3141 N 3rd Ave
Phoenix, AZ 85013
Phone (602) 914-1520

1919 E Thomas Rd
Phoenix, AZ 85016
Phone (602) 933-0777

2929 E Thomas Rd
Phoenix, AZ 85016
Phone (602) 470-5043

Interoperability endpoints

  • Direct secure messaging: rramanathan201550@direct.valleywisehealth.org

Organizations & group practices 6

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.

NPI Registry JSON

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

{
    "created_epoch": "1554940800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784073600000",
    "number": "1245793736",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3621 S STATE ST",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481081633",
            "telephone_number": "734-647-5299"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1500 E MEDICAL CENTER DR",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481095000",
            "telephone_number": "734-936-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1919 E Thomas Rd",
            "address_purpose": "LOCATION",
            "city": "Phoenix",
            "state": "AZ",
            "postal_code": "850167710",
            "country_code": "US",
            "telephone_number": "602-546-2923",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RAMANATHAN",
        "first_name": "REGI",
        "credential": "MBBS",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-04-11",
        "last_updated": "2026-07-15",
        "certification_date": "2026-07-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "AZ",
            "license": "66152",
            "primary": false
        },
        {
            "code": "2080P0202X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Cardiology",
            "state": "MI",
            "license": "4301508930",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MI",
            "license": "4301508930",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Ann Arbor, MI

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 15, 2026; 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.