Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christopher J Cassels, MD

Orthopaedic Surgery Physician in Frederick, MD · enumerated 2006.

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

National Provider Identifier

1144331877

Verified

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Registry record

Entity type Individual (Type 1)

Name Christopher J Cassels

Credential MD

Sex Male

Practice address 9517 Brigadoon Lane, Frederick, MD, 21704

Phone (203) 667-6502

Fax (203) 431-1749

Enumeration date Aug 31, 2006

Last updated in NPPES Feb 21, 2020

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 023840 (CT) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License D0072763 (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
010023840CT03	Other	-	ANTHEM BCBS
023840	Other	-	CONNECTICARE
019448419	Medicaid	CT	-
0526813002	Other	-	CIGNA
227180	Other	-	UNITED HEALTHCARE
2V3910	Other	-	HLTHNET OF THE NORTHEAST

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

Is NPI 1144331877 active?

Yes, as of the latest NPPES snapshot, NPI 1144331877 is active (record last updated 2020-02-21).

How do I verify Christopher Cassels's NPI record?

Cross-check NPI 1144331877 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-21.