NPPES file of Aug 9, 2026

Stephen H. Sim, M.D.

Internal Medicine Physician · Tacoma, WA

Stephen H. Sim, M.D. is an internal medicine physician with a practice address in Tacoma, Washington, and NPI 1407913205, issued on Jan 2, 2007. Check the license (Washington MD00041256, as entered in NPPES) on the Washington Medical Commission; 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
1407913205
Name
Stephen H. Sim
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD00041256 WA
Self-reported in NPPES; status is on the state search
Practice location
209 Martin Luther King JR Way, Tacoma, WA 98405
Phone
(253) 596-3300
Enumerated
Jan 2, 2007
Record last updated
May 5, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
8343493 WA
Medicare enrollment
Enrolled (PECOS I20050316000140); accepts Medicare assignment
Medical or professional school
University Of Washington School Of Medicine, 1999
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 209 Martin Luther King JR Way

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Alireza Abdolmohammadi, MDMedical Oncology Physician1871816207
  2. Karen Ackerman, M.D.Diagnostic Radiology Physician1164574554
  3. Natasha Alciso, PA-CPhysician Assistant1982299400
  4. Fahad Alroumi, M.D.Critical Care Medicine (Internal Medicine) Physician1295010676
  5. Michael Alston, MDPediatrics Physician1023403193
  6. Charles Anderson, M.D.Pulmonary Disease Physician1225004120

Verify Stephen H. Sim in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00041256
    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
Open the Washington license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

95% fewer Medicare Part D claims than the average internal medicine physician in 2024

153 Medicare Part D claims for 44 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Stephen Sim153
  2. Specialty average3,176

Most prescribed

  1. Metoprolol Succinate12 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.

Bills Medicare through one group practice

  1. Kaiser Foundation Health Plan OF WashingtonTacoma, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Stephen H. Sim among 3,079 internal medicine physician records in Washington

Stephen H. Sim, M.D. is one of 3,079 internal medicine physician records with a practice address in Washington. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 45% of them.

  • NPI issued2007 · 45% of these records are older, 46% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1999 · median 2006 among the 1,852 with a school on file
  • Record last updated2021 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

262 internal medicine physician records list a practice address in Tacoma

They are 262 of the 13,715 NPPES records with a practice address in Tacoma, and 3,079 internal medicine physician records in Washington.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Richard Bradford, MDTacoma, WA 984051285695379
  2. William Brand, MDTacoma, WA 984051093744716
  3. James Buttitta, MDTacoma, WA 984051376572214
  4. Imelda De Villa, M.D.Tacoma, WA 984051457399370
  5. Ellen Hardin, MDTacoma, WA 984051730112921
  6. Reid Holtzclaw-Swan, MDTacoma, WA 984051992782288
  7. Jeffrey Hooper, D.O.Tacoma, WA 984051083653539
  8. William Lee, MDTacoma, WA 984051285626325

Common questions

What is Stephen H. Sim, M.D.'s NPI number?

Stephen H. Sim, M.D.'s National Provider Identifier (NPI) is 1407913205, issued on Jan 2, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Stephen H. Sim, M.D. located?

The NPPES record lists a practice address at 209 Martin Luther King JR Way, Tacoma, WA, 98405. Phone: (253) 596-3300. Providers update this record themselves, so call before visiting.

How can I verify Stephen H. Sim, M.D.'s license?

NPPES lists Washington license number MD00041256, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Stephen H. Sim, M.D. prescribe under Medicare Part D?

In 2024, Stephen H. Sim, M.D. had 153 Medicare Part D claims for 44 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.