Jania Diaz, MD
Family Medicine Physician · Yakima, WA
Jania Diaz, MD is a family medicine physician with a practice address in Yakima, Washington, and NPI 1437803582, issued on Feb 8, 2022. Check the license (Washington MDCE.ML.61488954, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Jania Diaz
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- MDCE.ML.61488954 WA
16001-I PR
Self-reported in NPPES; status is on the state search - Practice location
- 1300 N 1St St, Yakima, WA 98901
- Phone
- (509) 248-4510
- Enumerated
- Feb 8, 2022
- Record last updated
- Oct 18, 2023
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,534 in Washington → Look up another NPI →
Also registered at 1300 N 1St St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jania Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MDCE.ML.61488954Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family medicine physician in 2024
35 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Jania Diaz among 5,534 family medicine physician records in Washington
Jania Diaz, MD is one of 5,534 family medicine physician records with a practice address in Washington. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 94% of them.
- NPI issued2022 · 94% of these records are older, 3% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2023 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
161 family medicine physician records list a practice address in Yakima
They are 161 of the 3,970 NPPES records with a practice address in Yakima, and 5,534 family medicine physician records in Washington.
All 5,534 in Washington → Every provider in Yakima → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jessica Di Nizio, D.O.Yakima, WA 989011346412079
- Joseph Dimeo, D.O.Yakima, WA 989011205848942
- Charles ForsterYakima, WA 989011598859829
- Thomas Gole, DOYakima, WA 989011821063843
- Deepika Goshike, MDYakima, WA 989011629195508
- Joan Harding, MDYakima, WA 989011194708446
- Peter Harveson, MDYakima, WA 989011528154580
- Joel HeinzenYakima, WA 989011174593214
Common questions
What is Jania Diaz, MD's NPI number?
Jania Diaz, MD's National Provider Identifier (NPI) is 1437803582, issued on Feb 8, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Jania Diaz, MD located?
The NPPES record lists a practice address at 1300 N 1St St, Yakima, WA, 98901. Phone: (509) 248-4510. Providers update this record themselves, so call before visiting.
How can I verify Jania Diaz, MD's license?
NPPES lists Washington license number MDCE.ML.61488954, 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 Jania Diaz, MD prescribe under Medicare Part D?
In 2024, Jania Diaz, MD had 35 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. 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.