Zachary Petrone Boas, M.D.
Internal Medicine Physician · Seattle, WA
Zachary Petrone Boas, M.D. is an internal medicine physician with a practice address in Seattle, Washington, and NPI 1588820187, issued on Aug 3, 2008. Check the license (Washington ML60019677, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Zachary Petrone Boas
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- ML60019677 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1959 NE Pacific St, Seattle, WA 98195
- Phone
- (206) 680-1822
- Enumerated
- Aug 3, 2008
- Record last updated
- Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160916001297); accepts Medicare assignment
- Medical or professional school
- Duke University School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 1959 NE Pacific St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Zachary Petrone Boas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license ML60019677Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,728 Medicare Part D claims for 346 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.
Most prescribed
- Atorvastatin Calcium167 claims
- Pradaxa123 claims
- Bisoprolol Fumarate116 claims
- Metoprolol Tartrate110 claims
- Furosemide93 claims
- Losartan Potassium86 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 GroupLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zachary Petrone Boas among 3,079 internal medicine physician records in Washington
Zachary Petrone Boas, 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 2008, is newer than 54% of them.
- NPI issued2008 · 54% of these records are older, 42% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2008 · 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
- Julia Becke, MDSeattle, WA 981951306858451
- Hardeep Bhugra, MBBCHSeattle, WA 981951215940788
- Davonna Cufley, M.D.Seattle, WA 981951871582734
- Annie Fang, MDSeattle, WA 981951679572168
- Rebecca Gettelman, MDSeattle, WA 981951750491262
- Brian Goldstein, MDSeattle, WA 981951902821275
- Daniel Leung, MDSeattle, WA 981951104936731
- Xi Li, M.D.Seattle, WA 981951891737631
Common questions
What is Zachary Petrone Boas, M.D.'s NPI number?
Zachary Petrone Boas, M.D.'s National Provider Identifier (NPI) is 1588820187, issued on Aug 3, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Zachary Petrone Boas, M.D. located?
The NPPES record lists a practice address at 1959 NE Pacific St, Seattle, WA, 98195. Phone: (206) 680-1822. Providers update this record themselves, so call before visiting.
How can I verify Zachary Petrone Boas, M.D.'s license?
NPPES lists Washington license number ML60019677, 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 Zachary Petrone Boas, M.D. prescribe under Medicare Part D?
In 2024, Zachary Petrone Boas, M.D. had 1,728 Medicare Part D claims for 346 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.