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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Timothy Justin Miller, D.O.

Diagnostic Radiology Physician in Clinton, MD · enumerated 2010.

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

National Provider Identifier

1821399239

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Registry record

Entity type Individual (Type 1)
Name Dr. Timothy Justin Miller
Credential D.O.
Sex Male
Practice address 8926 Woodyard Rd, Ste 301, Clinton, MD, 20735
Phone (301) 856-3670
Fax (301) 868-0129
Enumeration date Nov 16, 2010
Last updated in NPPES Dec 28, 2023

Taxonomy & licenses

174400000X Specialist Other Service Providers · License H0081237 (MD) Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 19096 (ND) Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 15141C (WY) Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 0102202428 (VA) 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
922303700 Medicaid MD -
1821399239 Medicaid VA -

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 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.
What specialty is Timothy Miller?
Timothy Miller is registered in NPPES with the primary taxonomy of Diagnostic Radiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-12-28.