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Megan M Terwilliger, MD

Internal Medicine Physician in Rochester, NY · enumerated 2006.

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

National Provider Identifier

1043278849

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Registry record

Entity type Individual (Type 1)
Name Megan M Terwilliger
Credential MD
Sex Female
Practice address 2400 S Clinton Ave, Building H, Suite 210, Rochester, NY, 14618
Phone (585) 341-7299
Fax (585) 341-4262
Enumeration date May 2, 2006
Last updated in NPPES Jul 6, 2023

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 181145 (NY) 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
01299210 Medicaid NY -
P00620676 Other NY MEDICARE RAILROAD

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

Where does Megan Terwilliger practice?
The practice location on file with NPPES is in Rochester, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Megan Terwilliger?
The National Provider Identifier (NPI) for Megan Terwilliger is 1043278849, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-06.