Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Paul Armstrong, MD

Internal Medicine Physician in Laurel, MD · enumerated 2006.

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

National Provider Identifier

1265547590

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Registry record

Entity type Individual (Type 1)

Name Dr. Paul Armstrong

Credential MD

Sex Male

Practice address 14201 Laurel Park Dr, Suite 102, Laurel, MD, 20707

Phone (301) 490-0616

Fax (301) 490-1193

Enumeration date Aug 19, 2006

Last updated in NPPES Aug 31, 2010

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License D43237 (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
75780-1600	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Paul Armstrong?

Paul Armstrong is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-08-31.