Dr. Marcus Stephen Tappan

Dr. Marcus Stephen Tappan is a Dentist provider (Dentist) practicing in Silver Spring, MD, registered in the NPPES registry with NPI 1982879219 since 2008.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1982879219
Entity type	Individual (Type 1)
Name	Dr. Marcus Stephen Tappan
Sex	Male
Practice address	Silver Spring, MD, 20910
Phone	3015658212
Fax	3015659458
Enumeration date	2008-04-28
Last updated in NPPES	2008-04-28

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

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
122300000X	Dentist	Primary	10168	MD

Copy-ready billing details

Provider: Marcus Tappan
NPI: 1982879219
Taxonomy: 122300000X (Dentist)
Address: Silver Spring, MD, 20910

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1790766855	Second Genesis, Inc.	Organization	Substance Abuse Rehabilitation Facility	Silver Spring, MD
1407006695	Sidney Shankman, MD PA	Organization	Specialist	Silver Spring, MD
1710438601	Age One Pediatric Dentistry	Organization	Pediatric Dentistry	Silver Spring, MD

Verify this record

Cross-check NPI 1982879219 against the authoritative CMS record: view Dr. Marcus Stephen Tappan on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Where does Marcus Tappan practice?

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

What is the NPI number for Marcus Tappan?

The National Provider Identifier (NPI) for Marcus Tappan is 1982879219, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-04-28.