NPI Portal NPI Lookup & Verification

Stephen J Chanock, M.D.

Stephen J Chanock is a Pediatrics Physician provider (Pediatrics) practicing in Potomac, MD, registered in the NPPES registry with NPI 1013038256 since 2007. The credential MD stands for Doctor of Medicine.

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NPI 1013038256
Entity type Individual (Type 1)
Name Stephen J Chanock
Credential M.D.
Sex Male
Practice address 11011 GLEN RD, Potomac, MD, 20854
Phone 3012993075
Enumeration date 2007-04-03
Last updated in NPPES 2007-07-08

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208000000X Pediatrics Physician Primary 56661 MA

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Copy-ready billing details
Provider: Stephen Chanock, M.D.
NPI: 1013038256
Taxonomy: 208000000X (Pediatrics Physician)
Address: 11011 GLEN RD, Potomac, MD, 20854

Verify this record

Cross-check NPI 1013038256 against the authoritative CMS record: view Stephen J Chanock on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

How do I verify Stephen Chanock's NPI record?
Cross-check NPI 1013038256 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1013038256 active?
Yes — as of the latest NPPES snapshot, NPI 1013038256 is active (record last updated 2007-07-08).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.