Nathanael David Gay, M.D.
Hematology & Oncology Physician · Spokane, WA
Nathanael David Gay, M.D. is a hematology & oncology physician with a practice address in Spokane, Washington, and NPI 1417214420, issued on Apr 15, 2012. Check the license (Washington MD61511710, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Nathanael David Gay
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- MD61511710 WA
M14104 ID
Self-reported in NPPES; status is on the state search - Practice location
- 601 S Sherman St, Spokane, WA 99202
- Phone
- (509) 228-1000
- Enumerated
- Apr 15, 2012
- Record last updated
- Oct 3, 2025
- Fax
- (509) 252-9300
- Medicare enrollment
- Enrolled (PECOS I20250428003862); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 476 in Washington → Look up another NPI →
Also registered at 601 S Sherman St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Janet Chestnut, M.D.Hematology & Oncology Physician1316082605
- April Davis, RDRegistered Dietitian1639494453
- Mei Dong, M.D., PH.D.Hematology & Oncology Physician1790960334
- Marsha Fink, M.D.Hematology & Oncology Physician1801892419
- Andrew Francis, M.D.Surgical Oncology Physician1922535509
- Heather Gabbert, MS, RD, CD, LDRegistered Dietitian1053646786
Verify Nathanael David Gay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD61511710Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average hematology & oncology physician in 2024
2,424 Medicare Part D claims for 349 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 59 claims were for opioids.
Most prescribed
- Prochlorperazine Maleate136 claims
- Acyclovir108 claims
- Ondansetron Odt103 claims
- Tamoxifen Citrate103 claims
- Anastrozole96 claims
- Dexamethasone90 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): 94.9 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: $70.20
3 payments; by number, the most common kind was food and beverage; the largest payer was Mirati Therapeutics, Inc. The 8,560 providers of this specialty with any payment received $7,481.41 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 Northwest Centers P SSpokane, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathanael David Gay among 476 hematology & oncology physician records in Washington
Nathanael David Gay, M.D. is one of 476 hematology & oncology physician records with a practice address in Washington. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 66% of them.
- NPI issued2012 · 66% of these records are older, 30% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2012 · median 2006 among the 294 with a school on file
- Record last updated2025 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Washington
There are 476 hematology & oncology physician records in Washington.
All 476 in Washington → Every provider in Spokane → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Janet Chestnut, M.D.Spokane, WA 992021316082605
- Mei Dong, M.D., PH.D.Spokane, WA 992021790960334
- Marsha Fink, M.D.Spokane, WA 992021801892419
- Lia Head, M.D.Spokane, WA 992021043674161
- Clifford Pukel, MDSpokane, WA 992021326155631
- Saritha Thumma, MDSpokane, WA 992021952445223
- David Trevarthen, M.D.Spokane, WA 992021225057631
- Joe Choi, M.D.Spokane, WA 992031760494819
Common questions
What is Nathanael David Gay, M.D.'s NPI number?
Nathanael David Gay, M.D.'s National Provider Identifier (NPI) is 1417214420, issued on Apr 15, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Nathanael David Gay, M.D. located?
The NPPES record lists a practice address at 601 S Sherman St, Spokane, WA, 99202. Phone: (509) 228-1000. Providers update this record themselves, so call before visiting.
How can I verify Nathanael David Gay, M.D.'s license?
NPPES lists Washington license number MD61511710, 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 Nathanael David Gay, M.D. prescribe under Medicare Part D?
In 2024, Nathanael David Gay, M.D. had 2,424 Medicare Part D claims for 349 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Nathanael David Gay, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.9 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.