NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marsha Thornhill, MD

Anesthesiology Physician in Teaneck, NJ · enumerated 2006.

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

National Provider Identifier

1578648366

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Marsha Thornhill
Credential MD
Sex Female
Practice address 730 Palisade Ave, Teaneck, NJ, 07666
Enumeration date Oct 27, 2006
Last updated in NPPES Jul 18, 2019

Taxonomy & licenses

174400000X Specialist Other Service Providers · License MA05894300 (NJ) Secondary
207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 25MA05894300 (NJ) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

What is the NPI number for Marsha Thornhill?
The National Provider Identifier (NPI) for Marsha Thornhill is 1578648366, a Type 1 (individual) record in the CMS NPPES registry.
Where does Marsha Thornhill practice?
The practice location on file with NPPES is in Teaneck, NJ. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-07-18.