NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael John Seider, PH.D., M.D., F.A.C.R

Radiation Oncology Physician in Wooster, OH · enumerated 2005 · practices at Cancer Treatment Center.

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

National Provider Identifier

1649251703

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Michael John Seider
Credential PH.D., M.D., F.A.C.R
Sex Male
Practice address 2376 Benden Dr, Wooster, OH, 44691
Phone (330) 262-6060
Fax (330) 262-5572
Enumeration date Nov 7, 2005
Last updated in NPPES Nov 17, 2017

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 35-055170 (OH) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier Type State Issuer
0665776 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1649251703 active?
Yes, as of the latest NPPES snapshot, NPI 1649251703 is active (record last updated 2017-11-17).
How do I verify Michael Seider's NPI record?
Cross-check NPI 1649251703 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-11-17.