NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Robert L Henderson, M.D., F.A.C.S.

Otolaryngology Physician in Columbia, MD · enumerated 2006 · practices at Avery Health Systems, LLC.

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

National Provider Identifier

1942277439

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Registry record

Entity type Individual (Type 1)
Name Dr. Robert L Henderson
Credential M.D., F.A.C.S.
Sex Male
Practice address Columbia, MD, 21044
Phone (443) 535-9451
Fax (443) 535-9455
Enumeration date Mar 2, 2006
Last updated in NPPES Mar 7, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License D0021351 (MD) 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
D0021351 Other MD MARYLAND LICENSE NUMBER
137031600 Medicaid MD -
137031602 Medicaid MD -

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 1942277439 active?
Yes, as of the latest NPPES snapshot, NPI 1942277439 is active (record last updated 2023-03-07).
How do I verify Robert Henderson's NPI record?
Cross-check NPI 1942277439 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 2023-03-07.