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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Stewart L Koehler, M.D.

Orthopaedic Surgery Physician in Baltimore, MD · enumerated 2005.

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

National Provider Identifier

1669462271

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Registry record

Entity type Individual (Type 1)
Name Dr. Stewart L Koehler
Credential M.D.
Sex Male
Practice address 6565 N Charles St, Suite 606, Baltimore, MD, 21204
Phone (410) 583-0160
Fax (410) 583-0166
Enumeration date Oct 25, 2005
Last updated in NPPES Aug 12, 2010

Taxonomy & licenses

174400000X Specialist Other Service Providers · License D0029233 (MD) Secondary
207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License D0029233 (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
113611900 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 1669462271 active?
Yes, as of the latest NPPES snapshot, NPI 1669462271 is active (record last updated 2010-08-12).
How do I verify Stewart Koehler's NPI record?
Cross-check NPI 1669462271 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 2010-08-12.