Active NPI
William Thomas Mangan Jr., DO
- Family Medicine Physician
- Okemos, MI
National Provider Identifier
1851392195
On this page
OIG exclusion record
The HHS Office of Inspector General’s List of Excluded Individuals/Entities (LEIE) contains a record with this NPI:
- Section 1128b(7) exclusion effective Nov 12, 2025.
Key facts
NPPES NPI Registry- Primary specialty
- Family Medicine Physician
- License
- 5101011930
- Practice address
- 3413 Woods Edge Drive
Okemos, MI 48864-5901 - Phone
- (517) 349-3303
- Fax
- (517) 349-4374
- NPI assigned
- Aug 9, 2005
- Last updated
- Jul 22, 2016
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Family Medicine Physician | 207Q00000X | 5101011930 | MI | Primary |
| General Practice Physician | 208D00000X | 5101011930 | MI |
Addresses
Primary practice location
3413 Woods Edge Drive
Okemos, MI 48864-5901
Mailing address
2510 Lake Lansing Rd
Lansing, MI 48912-5669
Phone (517) 853-0781
Other identifiers 2
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0C36097 | Other | MI | PTAN |
| 5101011930 | Other | MI | LICENSE NUMBER |
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)
- Not enrolled
- HHS exclusion list flag
- Flagged The directory lists this NPI on an HHS exclusion list.
- Credentials
- Doctor of Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 5101011930 | MI | MD | Family Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Next Generation Family Practice, PLLC | Family Medicine | Past | Accepting new patients |
| Lansing Cardiovascular Consultants PC | Family Medicine | Past | Accepting new patients |
Interoperability endpoints
- https://fhir.meditouchehr.com/api/fhir/r4/
Organizations & group practices 2
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.
-
- Nuclear Cardiology Physician
- Okemos, MI
- NPI 1548301880
Family Medicine
-
- Family Medicine Physician
- Lansing, MI
- NPI 1225085079
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1123545600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1469145600000",
"number": "1851392195",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2510 LAKE LANSING RD",
"city": "LANSING",
"state": "MI",
"postal_code": "489125669",
"telephone_number": "517-853-0781",
"fax_number": "517-655-3979"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3413 WOODS EDGE DRIVE",
"city": "OKEMOS",
"state": "MI",
"postal_code": "488645901",
"telephone_number": "517-349-3303",
"fax_number": "517-349-4374"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MANGAN",
"first_name": "WILLIAM",
"middle_name": "THOMAS",
"name_prefix": "Mr.",
"name_suffix": "Jr.",
"credential": "DO",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-08-09",
"last_updated": "2016-07-22",
"status": "A"
},
"taxonomies": [
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "MI",
"license": "5101011930",
"primary": true
},
{
"code": "208D00000X",
"taxonomy_group": "",
"desc": "General Practice",
"state": "MI",
"license": "5101011930",
"primary": false
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "PTAN",
"identifier": "0C36097",
"state": "MI"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "LICENSE NUMBER",
"identifier": "5101011930",
"state": "MI"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Okemos, MI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 22, 2016; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; OIG LEIE.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.