Active NPI
Harmonic Medical Group of Michigan, P.C
- Geriatric Medicine (Family Medicine) Physician
- Plymouth, MI
National Provider Identifier
1639931553
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Geriatric Medicine (Family Medicine) Physician
- Legal business name
- HARMONIC MEDICAL GROUP OF MICHIGAN, P.C
- Practice address
- 186 N Main St FL 2
Plymouth, MI 48170-1236 - Phone
- (862) 375-6089
- NPI assigned
- Jan 25, 2024
- Last updated
- May 7, 2026
- Organization subpart
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- James Gera
- Title
- Chief Executive Office
- Phone
- (314) 368-4224
Specialties & licenses 5
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Gerontology Nurse Practitioner | 363LG0600X | NU | ||
| Clinical Social Worker | 1041C0700X | NU | ||
| Registered Nurse | 163W00000X | NU | ||
| Geriatric Medicine (Family Medicine) Physician | 207QG0300X | NU | Primary | |
| Geriatric Medicine (Internal Medicine) Physician | 207RG0300X | NU |
Addresses
Primary practice location
186 N Main St FL 2
Plymouth, MI 48170-1236
Mailing address
119 S Main St
Saint Charles, MO 63301-2802
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MI
Enrollment records 1
National Provider Directory
National Provider DirectoryPractitioners & affiliated clinicians
Practitioners 5
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1706140800000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1778112000000",
"number": "1639931553",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "119 S MAIN ST",
"city": "SAINT CHARLES",
"state": "MO",
"postal_code": "633012802"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "186 N MAIN ST FL 2",
"city": "PLYMOUTH",
"state": "MI",
"postal_code": "481701236",
"telephone_number": "862-375-6089"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "HARMONIC MEDICAL GROUP OF MICHIGAN, P.C",
"organizational_subpart": "NO",
"enumeration_date": "2024-01-25",
"last_updated": "2026-05-07",
"certification_date": "2026-05-07",
"status": "A",
"authorized_official_last_name": "GERA",
"authorized_official_first_name": "JAMES",
"authorized_official_title_or_position": "CHIEF EXECUTIVE OFFICE",
"authorized_official_telephone_number": "314-368-4224"
},
"taxonomies": [
{
"code": "363LG0600X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Gerontology",
"state": "NU",
"license": null,
"primary": false
},
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "NU",
"license": null,
"primary": false
},
{
"code": "163W00000X",
"taxonomy_group": "",
"desc": "Registered Nurse",
"state": "NU",
"license": null,
"primary": false
},
{
"code": "207QG0300X",
"taxonomy_group": "",
"desc": "Family Medicine, Geriatric Medicine",
"state": "NU",
"license": null,
"primary": true
},
{
"code": "207RG0300X",
"taxonomy_group": "",
"desc": "Internal Medicine, Geriatric Medicine",
"state": "NU",
"license": null,
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Plymouth, MI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.