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Dr. John Patrick Collins, D.O.

Physical Medicine & Rehabilitation Physician in Clarksville, MD · enumerated 2006.

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

National Provider Identifier

1821063165

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Registry record

Entity type Individual (Type 1)
Name Dr. John Patrick Collins
Credential D.O.
Sex Male
Practice address 5005 Signal Bell Ln, Suite 208, Clarksville, MD, 21029
Phone (443) 535-9900
Fax (443) 535-9901
Enumeration date Feb 21, 2006
Last updated in NPPES Feb 19, 2013

Taxonomy & licenses

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License H0044649 (MD) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
043911800 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

Where does John Collins practice?
The practice location on file with NPPES is in Clarksville, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Collins?
The National Provider Identifier (NPI) for John Collins is 1821063165, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-02-19.