Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Michael Shanahan Blackwood, DDS, MS

Orthodontics and Dentofacial Orthopedics Dentistry in Potomac, MD · enumerated 2009.

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

National Provider Identifier

1972735017

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Michael Shanahan Blackwood

Credential DDS, MS

Sex Male

Practice address Potomac, MD, 20854

Phone (301) 983-1096

Enumeration date Aug 21, 2009

Last updated in NPPES Aug 21, 2009

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License 0401007606 (VA) Secondary

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License DEN5374 (DC) Secondary

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License 11187 (MD) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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.

Read the full guide → Validate an NPI →

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 Michael Blackwood?

Michael Blackwood is registered in NPPES with the primary taxonomy of Orthodontics and Dentofacial Orthopedics Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Inna Kost Dentist · Potomac, MD NPI 1952352155 Christopher Liang Dentist · Potomac, MD NPI 1386667178 Susan Felzer Psychiatry Physician · Potomac, MD NPI 1386798387 Lisa Jager Child & Adolescent Psychiatry Physician · Potomac, MD NPI 1932307832 Huixin Wang Dentist · Potomac, MD NPI 1801278544

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-08-21.