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

Dr. Richard Mao, D.M.D.

Q: What is the NPI number for Richard Mao?

The National Provider Identifier (NPI) for Richard Mao is 1952427825, a Type 1 (individual) record in the CMS NPPES registry.

Periodontics in Baltimore, MD · enumerated 2007.

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

National Provider Identifier

1952427825

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Registry record

Entity type Individual (Type 1)

Name Dr. Richard Mao

Credential D.M.D.

Sex Male

Practice address Baltimore, MD, 21286

Phone (410) 321-9595

Enumeration date Mar 22, 2007

Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

1223P0300X Periodontics Dental Providers · License 6327 (MD) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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

Where does Richard Mao practice?

The practice location on file with NPPES is in Baltimore, MD. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Richard Mao?

The National Provider Identifier (NPI) for Richard Mao is 1952427825, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Kathleen Awalt Pediatric Adolescent Medicine Physician · Baltimore, MD NPI 1710954326 Jody Roblyer Pediatric Adolescent Medicine Physician · Baltimore, MD NPI 1649247271 Felix Kaufman Pediatric Adolescent Medicine Physician · Baltimore, MD NPI 1669449914 Stephen Feldman Pediatric Adolescent Medicine Physician · Baltimore, MD NPI 1831166180 Mary Jo Minton Pediatric Adolescent Medicine Physician · Baltimore, MD NPI 1093782252 Michael Ichniowski Pediatric Adolescent Medicine Physician · Baltimore, MD NPI 1902873169 Matthew Greene General Practice Dentistry · Towson, MD NPI 1730396805 Robert G. Ray D.M.D Orthodontics and Dentofacial Orthopedics Dentistry · Towson, MD NPI 1023219367

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.