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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marc Andrew Ellsworth, MD

Neonatal-Perinatal Medicine Physician in Gilbert, AZ · enumerated 2011.

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

National Provider Identifier

1609171115

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Registry record

Entity type Individual (Type 1)
Name Marc Andrew Ellsworth
Credential MD
Sex Male
Practice address 3420 S Mercy Rd Ste 205, Gilbert, AZ, 85297
Phone (602) 933-6345
Enumeration date Jan 13, 2011
Last updated in NPPES Dec 9, 2020

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 54096 (MN) Secondary
2080N0001X Neonatal-Perinatal Medicine Physician Allopathic & Osteopathic Physicians · License 51592 (AZ) 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
ENROLLED Medicaid MN -

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 1609171115 active?
Yes, as of the latest NPPES snapshot, NPI 1609171115 is active (record last updated 2020-12-09).
How do I verify Marc Ellsworth's NPI record?
Cross-check NPI 1609171115 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 2020-12-09.