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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Regan D Rostorfer, MD

Hematology & Oncology Physician in Ocoee, FL · enumerated 2008.

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

National Provider Identifier

1790936409

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Registry record

Entity type Individual (Type 1)
Name Dr. Regan D Rostorfer
Credential MD
Sex Male
Practice address 9900 W Colonial Dr, Ocoee, FL, 34761
Phone (321) 843-7440
Fax (321) 843-7497
Enumeration date Oct 1, 2008
Last updated in NPPES Apr 26, 2022

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License ME105256 (FL) 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
004943400 Medicaid FL -
ME105256 Other FL MEDICAL LICENSE

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

Is NPI 1790936409 active?
Yes, as of the latest NPPES snapshot, NPI 1790936409 is active (record last updated 2022-04-26).
How do I verify Regan Rostorfer's NPI record?
Cross-check NPI 1790936409 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-26.