Steven Tien Diep, MD
Hospitalist Physician · Seattle, WA
Steven Tien Diep, MD is a hospitalist physician with a practice address in Seattle, Washington, and NPI 1730755596, issued on Jun 2, 2021. Check the license (Washington MD61538103, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Steven Tien Diep
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- MD61538103 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1550 N 115TH St, Seattle, WA 98133
- Phone
- (206) 520-5000
- Enumerated
- Jun 2, 2021
- Record last updated
- Aug 7, 2024
- Medicare enrollment
- Enrolled (PECOS I20240904000471); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 793 in Washington → Look up another NPI →
Also registered at 1550 N 115TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Nehizena Aihie, MDUrology Physician1215499793
- Mariam Alam, M.D.Dermatology Physician1811382237
- Ellen AlbertsAdult Health Clinical Nurse Specialist1215756739
Verify Steven Tien Diep in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD61538103Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average hospitalist physician in 2024
133 Medicare Part D claims for 32 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Amlodipine Besylate14 claims
- Lisinopril13 claims
- Carvedilol11 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
- The Association OF University PhysiciansSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Steven Tien Diep among 793 hospitalist physician records in Washington
Steven Tien Diep, MD is one of 793 hospitalist physician records with a practice address in Washington. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 89% of them.
- NPI issued2021 · 89% of these records are older, 6% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated2021 · median 2011 among the 649 with a school on file
- Record last updated2024 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Washington
There are 793 hospitalist physician records in Washington.
All 793 in Washington → Every provider in Seattle → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Michael Fujimoto, M.D.Seattle, WA 981331073623906
- Nima KaramoozSeattle, WA 981331447679691
- Amie Macnab, M.D.Seattle, WA 981331447368550
- Katayoun Neshat-Fateh, MDSeattle, WA 981331558338095
- Nguyen-Lan Nguyen, M.D.Seattle, WA 981331487756003
- Donna Pedroza, MBBS, MASeattle, WA 981331376819425
- Elizabeth Plotkin, M.D.Seattle, WA 981331538116892
- Laura Quinnan-Hostein, M.D.Seattle, WA 981331437264207
Common questions
What is Steven Tien Diep, MD's NPI number?
Steven Tien Diep, MD's National Provider Identifier (NPI) is 1730755596, issued on Jun 2, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Steven Tien Diep, MD located?
The NPPES record lists a practice address at 1550 N 115TH St, Seattle, WA, 98133. Phone: (206) 520-5000. Providers update this record themselves, so call before visiting.
How can I verify Steven Tien Diep, MD's license?
NPPES lists Washington license number MD61538103, 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 Steven Tien Diep, MD prescribe under Medicare Part D?
In 2024, Steven Tien Diep, MD had 133 Medicare Part D claims for 32 beneficiaries; the average among hospitalist physician prescribers was 521. 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.