Justin Estaris
Internal Medicine Physician · Seattle, WA
Justin Estaris is an internal medicine physician with a practice address in Seattle, Washington, and NPI 1174818439, issued on Jun 15, 2011. Check the license (Washington ML 60264054, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Justin Estaris
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- ML 60264054 WA
Self-reported in NPPES; status is on the state search - Practice location
- 925 Seneca St, Seattle, WA 98101
- Phone
- (206) 583-6079
- Enumerated
- Jun 15, 2011
- Record last updated
- Oct 27, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20161122001473); accepts Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 925 Seneca St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jonathan Abe, MDInternal Medicine Physician1346090875
- Katherine Adler, MDInternal Medicine Physician1841418886
- Sanjhavi AgarwalStudent in an Organized Health Care Education/Training Program1902410053
- Jason Agtarap, MDStudent in an Organized Health Care Education/Training Program1194576181
- Shani AharonStudent in an Organized Health Care Education/Training Program1316526650
- Mohammad Ahmed, DOHospitalist Physician1063819381
Verify Justin Estaris in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license ML 60264054Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,472 Medicare Part D claims for 339 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were under 1% of claims.
Most prescribed
- Lorazepam125 claims
- Alprazolam118 claims
- Clonazepam114 claims
- Trazodone Hcl98 claims
- Sertraline Hcl80 claims
- Quetiapine Fumarate79 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
- Southern California Permanente Medical GroupDowney, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Justin Estaris among 3,079 internal medicine physician records in Washington
Justin Estaris 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 2011, is newer than 65% of them.
- NPI issued2011 · 65% of these records are older, 32% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2011 · 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).
821 internal medicine physician records list a practice address in Seattle
They are 821 of the 41,956 NPPES records with a practice address in Seattle, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Seattle → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Lesley Althouse, MDSeattle, WA 981011669402608
- Leslie Bailey, M.D.Seattle, WA 981011255366613
- A Bender, MDSeattle, WA 981011265462634
- Christopher Carlsten, MDSeattle, WA 981011891734208
- Stephan Fihn, MDSeattle, WA 981011225098320
- Richard Furlong, MDSeattle, WA 981011457370777
- Carrie Horwitch, MDSeattle, WA 981011477574325
- Paul Kassab, MDSeattle, WA 981011740287275
Common questions
What is Justin Estaris's NPI number?
Justin Estaris's National Provider Identifier (NPI) is 1174818439, issued on Jun 15, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Justin Estaris located?
The NPPES record lists a practice address at 925 Seneca St, Seattle, WA, 98101. Phone: (206) 583-6079. Providers update this record themselves, so call before visiting.
How can I verify Justin Estaris's license?
NPPES lists Washington license number ML 60264054, 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 Justin Estaris prescribe under Medicare Part D?
In 2024, Justin Estaris had 1,472 Medicare Part D claims for 339 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.