Active NPI
Regi Ramanathan, MBBS
- Pediatric Cardiology Physician
- Ann Arbor, MI
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pediatric Cardiology Physician
- License
- 4301508930
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| License | State | Type | Specialty |
|---|---|---|---|
| 66152 | AZ | MD | Pediatrics Physician |
| 4301508930 | MI | MD | Pediatric Cardiology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| District Medical Group, Inc | Current | Accepting new patients | |
| District Medical Group, Inc | Current | Accepting new patients | |
| Phoenix Children'S Hospital | Pediatrics | Current | Accepting new patients |
| Phoenix Children'S Medical Group | Current | 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
- 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.
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-
- Emergency Medicine Physician
- Phoenix, AZ
- NPI 1144624339
-
- Anatomic Pathology & Clinical Pathology Physician
- Phoenix, AZ
- NPI 1336472448
-
- Pediatrics Physician
- Phoenix, AZ
- NPI 1922112044
-
- Multi-Specialty Clinic/Center
- Mesa, AZ
- NPI 1487814240
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.