Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Mary Theresa Maskell, RDH
Dental Hygienist in Baltimore, MD · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1194570838
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Registry record
Entity type Individual (Type 1)
Name Ms. Mary Theresa Maskell
Credential RDH
Sex Female
Practice address 650 W Baltimore St, Baltimore, MD, 21201
Phone (410) 706-8127
Enumeration date Apr 17, 2024
Last updated in NPPES Apr 19, 2024
Taxonomy & licenses
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.
Frequently asked questions
How do I verify Mary Maskell's NPI record?
Cross-check NPI 1194570838 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1194570838 active?
Yes, as of the latest NPPES snapshot, NPI 1194570838 is active (record last updated 2024-04-19).
Other providers at this practice address
Browse all → Stewart Bergman Oral and Maxillofacial Surgery (Dentist) · Baltimore, MD NPI 1508867599 Robert Ord Oral & Maxillofacial Surgery (D.M.D.) · Baltimore, MD NPI 1730180043 John Caccamese Oral & Maxillofacial Surgery (D.M.D.) · Baltimore, MD NPI 1467446344 Gary Swiec Dentist · Baltimore, MD NPI 1134199003 Deborah Miller Young Dentist · Baltimore, MD NPI 1629002993 Harold Pincus Pediatric Dentistry · Baltimore, MD NPI 1407940968 U M Fdsp Associates PA Dentist · Baltimore, MD NPI 1104909449 Norman Tinanoff Pediatric Dentistry · Baltimore, MD NPI 1164505368
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-19.