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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. CHELSEA MARKUS DDS, MS
NPI 1821798018
Dentist - Prosthodontics in Bethesda, MD

Active since March 06, 2023
4825 BETHESDA AVE STE 308, BETHESDA, MD 20814(301) 377-8306 Get Directions Write a Review

NPPES record last updated: July 22, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 22, 2026, Mar 6, 2023 (2 updates tracked since 2023).

About Dr. Chelsea Markus Dds, Ms NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CHELSEA MARKUS DDS, MS (NPI 1821798018) is an individual prosthodontics provider in Bethesda, Maryland, licensed in Maryland (19031) and active in the NPI registry since March 2023.

NPPES Registry Identity

NPI1821798018
Entity TypeIndividualFemale
Primary Taxonomy1223P0700X
Provider Legal NameDR. CHELSEA MARKUSCredential: DDS, MS
Location Address4825 BETHESDA AVE STE 308Bethesda, MD 20814-5245
Mailing Address6805 East AveChevy Chase, MD 20815-5227 · (301) 312-1436
Phone(301) 377-8306
Sole ProprietorNo
Enumeration DateMarch 6, 2023
Last NPPES UpdateJuly 22, 20262 updates tracked since enumeration
NPPES CertifiedJuly 22, 2026
✔ NPI 1821798018 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · ProsthodonticsDental Providers
Taxonomy Code1223P0700X
License✔ Licensed in MD · 19031
Definition
That branch of dentistry pertaining to the restoration and maintenance of oral functions, comfort, appearance and health of the patient by the restoration of natural teeth and/or the replacement of missing teeth and contiguous oral and maxillofacial tissues with artificial substitutes.
4825 BETHESDA AVE STE 308, Bethesda, MD 20814
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Other Names 1

Other Name (5)Chelsea New

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PEDG BETHESDA ROW MD LLC
Dentist
4825 BETHESDA AVE STE 308
BETHESDA, MD 20814
Montgomery County (301) 377-8306

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Chelsea Markus's NPI number?

The NPI number for Chelsea Markus is 1821798018. It was assigned to this individual provider in the NPPES registry on March 6, 2023. The provider is also known as Chelsea New.

Where is Chelsea Markus located?

Chelsea Markus practices at 4825 Bethesda Ave Ste 308, Bethesda, MD 20814. The listed phone number is (301) 377-8306.

What is Chelsea Markus's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Prosthodontics, with taxonomy code 1223P0700X.

When was this NPI record last updated?

The NPPES record for Chelsea Markus was last updated on July 22, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.