Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Margaret M Olsen, M.D.

Pediatric Surgery Physician in Sylvania, OH · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1194721928

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Registry record

Entity type Individual (Type 1)

Name Mrs. Margaret M Olsen

Credential M.D.

Sex Female

Practice address 7640 Sylvania Ave, Ste N, Sylvania, OH, 43560

Phone (419) 824-8371

Fax (419) 517-7576

Enumeration date Jun 27, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

2086S0120X Pediatric Surgery Physician Allopathic & Osteopathic Physicians Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
0492131	Medicaid	OH	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Margaret Olsen's NPI record?

Cross-check NPI 1194721928 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1194721928 active?

Yes, as of the latest NPPES snapshot, NPI 1194721928 is active (record last updated 2007-07-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.