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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Thomas Carr, M.D.

Addiction Psychiatry Physician in Silver Spring, MD · enumerated 2008.

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

National Provider Identifier

1992956601

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Registry record

Entity type Individual (Type 1)
Name Dr. John Thomas Carr
Credential M.D.
Sex Male
Practice address 1003 Spring St, Kolmac Clinic, Silver Spring, MD, 20910
Phone (301) 589-0255
Fax (301) 589-0291
Enumeration date Oct 1, 2008
Last updated in NPPES Oct 1, 2008

Taxonomy & licenses

2084P0802X Addiction Psychiatry Physician Allopathic & Osteopathic Physicians · License D45444 (MD) Primary
2084P0802X Addiction Psychiatry Physician Allopathic & Osteopathic Physicians · License MD 036634 (DC) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 1992956601 active?
Yes, as of the latest NPPES snapshot, NPI 1992956601 is active (record last updated 2008-10-01).
How do I verify John Carr's NPI record?
Cross-check NPI 1992956601 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 2008-10-01.