NPPES file of Aug 9, 2026

Stephen J. Markham, D.D.S.

Dentist · Federal Way, WA

Stephen J. Markham, D.D.S. is a dentist with a practice address in Federal Way, Washington, and NPI 1265420194, issued on Oct 13, 2005. Check the license (Washington DE00011088, as entered in NPPES) with the Washington 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
1265420194
Name
Stephen J. Markham
Credential
D.D.S.
Primary taxonomy
Dentist 122300000X
License numbers
DE00011088 WA
DD1803 NM
Self-reported in NPPES; status is on the state search
Practice location
720 S 320TH St Ste I, Federal Way, WA 98003
Phone
(253) 839-5953
Enumerated
Oct 13, 2005
Record last updated
Nov 14, 2023
Medicaid ID
94827532 NM
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 Stephen J. Markham in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license DE00011088
    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 Washington license search

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74% fewer Medicare Part D claims than the average dentist in 2024

22 Medicare Part D claims for 18 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.

  1. Stephen Markham22
  2. Specialty average86

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.

Stephen J. Markham among 2,767 dentist records in Washington

Stephen J. Markham, D.D.S. is one of 2,767 dentist records with a practice address in Washington. 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 98% 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 updated2023 · 64% 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 Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

53 dentist records list a practice address in Federal Way

They are 53 of the 2,770 NPPES records with a practice address in Federal Way, and 2,767 dentist records in Washington.

The 8 dentist records with the nearest ZIP codes

  1. Margaret Chiu, DDSFederal Way, WA 980031972596682
  2. Daniel Chong, DDSFederal Way, WA 980031609854926
  3. Buu-Chau Do, DMDFederal Way, WA 980031730202680
  4. Simin Faghih-Nakhjiri, DDS, MSD, MSFederal Way, WA 980031043263585
  5. Briain Filbert, D.D.S.Federal Way, WA 980031447239900
  6. Jeong-Ku Hahn, DDSFederal Way, WA 980031275671646
  7. Steven Hopkins, DDSFederal Way, WA 980031003817503
  8. Richard Hwynn, DDSFederal Way, WA 980031043207715

Common questions

What is Stephen J. Markham, D.D.S.'s NPI number?

Stephen J. Markham, D.D.S.'s National Provider Identifier (NPI) is 1265420194, issued on Oct 13, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Stephen J. Markham, D.D.S. located?

The NPPES record lists a practice address at 720 S 320TH St Ste I, Federal Way, WA, 98003. Phone: (253) 839-5953. Providers update this record themselves, so call before visiting.

How can I verify Stephen J. Markham, D.D.S.'s license?

NPPES lists Washington license number DE00011088, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Stephen J. Markham, D.D.S. prescribe under Medicare Part D?

In 2024, Stephen J. Markham, D.D.S. had 22 Medicare Part D claims for 18 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.