NPPES file of Aug 9, 2026

Marcus Stephen Tappan

Dentist · Silver Spring, MD

Marcus Stephen Tappan is a dentist with a practice address in Silver Spring, Maryland, and NPI 1982879219, issued on Apr 28, 2008. Check the license (Maryland 10168, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1982879219
Name
Marcus Stephen Tappan
Primary taxonomy
Dentist 122300000X
License number
10168 MD
Self-reported in NPPES; status is on the state search
Practice location
8611 2ND Ave, Silver Spring, MD 20910
Phone
(301) 565-8212
Enumerated
Apr 28, 2008
Record last updated
Apr 28, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(301) 565-9458
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Marcus Stephen Tappan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license 10168
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Maryland license search

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2% fewer Medicare Part D claims than the average dentist in 2024

84 Medicare Part D claims for 33 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. 12 claims were for opioids.

  1. Marcus Tappan84
  2. Specialty average86

Most prescribed

  1. Amoxicillin25 claims
  2. Ibuprofen18 claims
  3. Chlorhexidine Gluconate13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $39.03

2 payments; by number, the most common kind was education; the largest payer was Colgate Oral Pharmaceuticals, Inc. The 31,974 providers of this specialty with any payment received $540.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marcus Tappan$39.03
  2. Specialty average$540.36

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Marcus Stephen Tappan among 1,870 dentist records in Maryland

Marcus Stephen Tappan is one of 1,870 dentist records with a practice address in Maryland. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 35% of them.

  • NPI issued2008 · 35% of these records are older, 57% newer
  • In a Medicare fileYes · 60% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2008 · 69% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

104 dentist records list a practice address in Silver Spring

They are 104 of the 6,531 NPPES records with a practice address in Silver Spring, and 1,870 dentist records in Maryland.

The 8 dentist records with the nearest ZIP codes

  1. Kingsley Achikeh, DDSSilver Spring, MD 209101144244773
  2. Isaac Adedara, DDSSilver Spring, MD 209101831308485
  3. Shazaad Ally, D.D.S.Silver Spring, MD 209101871761700
  4. Agnes Bolus-Alignay, DDSSilver Spring, MD 209101316156771
  5. Toussaint Crawford, D.D.S.Silver Spring, MD 209101831398205
  6. Todd Galkin, DDSSilver Spring, MD 209101780696203
  7. Marcia Gilbert, DDSSilver Spring, MD 209101831267541
  8. Ramesh Jagan, D.D.S.Silver Spring, MD 209101376523811

Common questions

What is Marcus Stephen Tappan's NPI number?

Marcus Stephen Tappan's National Provider Identifier (NPI) is 1982879219, issued on Apr 28, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Marcus Stephen Tappan located?

The NPPES record lists a practice address at 8611 2ND Ave, Silver Spring, MD, 20910. Phone: (301) 565-8212. Providers update this record themselves, so call before visiting.

How can I verify Marcus Stephen Tappan's license?

NPPES lists Maryland license number 10168, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

How much does Marcus Stephen Tappan prescribe under Medicare Part D?

In 2024, Marcus Stephen Tappan had 84 Medicare Part D claims for 33 beneficiaries; the average among dentist prescribers was 86. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.