Zachary Oaks, MD
Radiation Oncology Physician · Puyallup, WA
Zachary Oaks, MD is a radiation oncology physician with a practice address in Puyallup, Washington, and NPI 1457841157, issued on May 17, 2018. Check the license (Washington 70085048, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Zachary Oaks
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- 70085048 WA
01089693A IN
Self-reported in NPPES; status is on the state search - Practice location
- 2940 S Meridian Ste 100, Puyallup, WA 98373
- Phone
- (253) 200-3166
- Enumerated
- May 17, 2018
- Record last updated
- Jul 17, 2026
- Fax
- (253) 200-3167
- Medicare enrollment
- Enrolled (PECOS I20230519001544); accepts Medicare assignment
- Medical or professional school
- State University Of Ny Upstate Medical University, 2018
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 198 in Washington → Look up another NPI →
Also registered at 2940 S Meridian Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kevin Sanders, MDRadiation Oncology Physician1376554154
Verify Zachary Oaks in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license 70085048Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% more Medicare Part D claims than the average radiation oncology physician in 2024
214 Medicare Part D claims for 124 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 25 claims were for opioids.
Most prescribed
- Tamsulosin Hcl37 claims
- Mupirocin23 claims
- Levothyroxine Sodium20 claims
- Lorazepam20 claims
- Dexamethasone15 claims
- Oxycodone Hcl15 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.
The MIPS final score for 2023 (Medicare payment program): 95 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $455.70
9 payments; by number, the most common kind was food and beverage; the largest payer was Daiichi Sankyo Inc. The 3,275 providers of this specialty with any payment received $1,897.85 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 one group practice
- Cancer Care Group PCTerre Haute, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zachary Oaks among 198 radiation oncology physician records in Washington
Zachary Oaks, MD is one of 198 radiation oncology physician records with a practice address in Washington. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 88% of them.
- NPI issued2018 · 88% of these records are older, 10% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2018 · median 2006 among the 141 with a school on file
- Record last updated2026 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Washington
There are 198 radiation oncology physician records in Washington.
All 198 in Washington → Every provider in Puyallup → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Kevin Sanders, MDPuyallup, WA 983731376554154
- Nathan Bittner, MDPuyallup, WA 983721609989714
- Richard Foxlee, MDPoulsbo, WA 983701063480358
- Berit Madsen, MDPoulsbo, WA 983701164518841
- Anthony Pham, MDPoulsbo, WA 983701508251000
- Susan Feeney, MDSequim, WA 983821750321469
- Lindsay JensenSequim, WA 983821649601386
- Marie Taylor, MDSequim, WA 983821932127636
Common questions
What is Zachary Oaks, MD's NPI number?
Zachary Oaks, MD's National Provider Identifier (NPI) is 1457841157, issued on May 17, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Zachary Oaks, MD located?
The NPPES record lists a practice address at 2940 S Meridian Ste 100, Puyallup, WA, 98373. Phone: (253) 200-3166. Providers update this record themselves, so call before visiting.
How can I verify Zachary Oaks, MD's license?
NPPES lists Washington license number 70085048, 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 Oaks, MD prescribe under Medicare Part D?
In 2024, Zachary Oaks, MD had 214 Medicare Part D claims for 124 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Zachary Oaks, MD's MIPS final score?
The 2023 MIPS final score is 95 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.