Active NPI
Margaret M Olsen, M.D.
- Pediatric Surgery Physician
- Sylvania, OH
National Provider Identifier
1194721928
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pediatric Surgery Physician
- Practice address
- 7640 Sylvania Ave
Ste N
Sylvania, OH 43560-9263 - Phone
- (419) 824-8371
- Fax
- (419) 517-7576
- NPI assigned
- Jun 27, 2005
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Pediatric Surgery Physician | 2086S0120X | OH | Primary |
Addresses
Primary practice location
7640 Sylvania Ave
Ste N
Sylvania, OH 43560-9263
Mailing address
7640 Sylvania Ave
Ste N
Sylvania, OH 43560-9263
Phone (419) 824-8371
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0492131 | Medicaid | OH |
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 |
|---|---|---|---|
| 350476370 | OH | MD | Pediatric Surgery Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1119830400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1194721928",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "7640 SYLVANIA AVE",
"address_2": "STE N",
"city": "SYLVANIA",
"state": "OH",
"postal_code": "435609263",
"telephone_number": "419-824-8371",
"fax_number": "419-517-7576"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "7640 SYLVANIA AVE",
"address_2": "STE N",
"city": "SYLVANIA",
"state": "OH",
"postal_code": "435609263",
"telephone_number": "419-824-8371",
"fax_number": "419-517-7576"
}
],
"practiceLocations": [],
"basic": {
"last_name": "OLSEN",
"first_name": "MARGARET",
"middle_name": "M",
"name_prefix": "Mrs.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2005-06-27",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "2086S0120X",
"taxonomy_group": "",
"desc": "Surgery, Pediatric Surgery",
"state": "OH",
"license": null,
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "0492131",
"state": "OH"
}
],
"endpoints": [],
"other_names": []
}Other providers in Sylvania, OH
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.