Peter Zajac, DO
Surgery Physician · Moses Lake, WA
Peter Zajac, DO is a surgery physician with a practice address in Moses Lake, Washington, and NPI 1477110419, issued on May 24, 2019. Check the license (Washington OP61502695, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Peter Zajac
- Credential
- DO
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- OP61502695 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1550 S Pioneer Way, Moses Lake, WA 98837
- Phone
- (509) 793-9792
- Enumerated
- May 24, 2019
- Record last updated
- May 4, 2026
- Fax
- (509) 764-3287
- Medicaid ID
- 2291811 WA
- Medicare enrollment
- Enrolled (PECOS I20240719002437); accepts Medicare assignment
- Medical or professional school
- Edward Via Col Of Osteo Medicine-Virginia Campus, 2019
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 791 in Washington → Look up another NPI →
Also registered at 1550 S Pioneer Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Bjork, ARNPNurse Practitioner1922841717
- Elizabeth Bonadies, CNMAdvanced Practice Midwife1235637414
- Emily Brestin, MDPediatrics Physician1831766187
- Phillip Carron, M.D.Family Medicine Physician1033591375
- Anne Coury, M.D.Obstetrics & Gynecology Physician1609912708
- David Earl, MDInternal Medicine Physician1710075478
Verify Peter Zajac in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP61502695Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average surgery physician in 2024
53 Medicare Part D claims for 22 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Ondansetron Odt11 claims
- Oxycodone Hcl11 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.
Industry payments in 2024: $19.28
1 payment: food and beverage; the largest payer was Urgo Medical North America, LLC. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Grant County Public Hospital District 1Moses Lake, WA
- Multicare Health SystemTacoma, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peter Zajac among 791 surgery physician records in Washington
Peter Zajac, DO is one of 791 surgery physician records with a practice address in Washington. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 88% of them.
- NPI issued2019 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2019 · median 2006 among the 439 with a school on file
- Record last updated2026 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Washington
There are 791 surgery physician records in Washington.
All 791 in Washington → Every provider in Moses Lake → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Eric Ebaugh, DOMoses Lake, WA 988371750676490
- Rodney Grolman, MDMoses Lake, WA 988371457340986
- Louis Martin, M.D.Moses Lake, WA 988371336147727
- Andrea Matson, DOMoses Lake, WA 988371487031753
- Qi Ying McClelland, MDMoses Lake, WA 988371922567205
- Allen Rolfs, MDMoses Lake, WA 988371952320053
- Jordan Smith, D.O.Moses Lake, WA 988371023464609
- Thomas Tuszynski, MDMoses Lake, WA 988371952325474
Common questions
What is Peter Zajac, DO's NPI number?
Peter Zajac, DO's National Provider Identifier (NPI) is 1477110419, issued on May 24, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Peter Zajac, DO located?
The NPPES record lists a practice address at 1550 S Pioneer Way, Moses Lake, WA, 98837. Phone: (509) 793-9792. Providers update this record themselves, so call before visiting.
How can I verify Peter Zajac, DO's license?
NPPES lists Washington license number OP61502695, 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 Peter Zajac, DO prescribe under Medicare Part D?
In 2024, Peter Zajac, DO had 53 Medicare Part D claims for 22 beneficiaries; the average among surgery physician prescribers was 147. 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.