Chinasa Phoebe Onyemkpa, MD
Family Medicine Physician · Yakima, WA
Chinasa Phoebe Onyemkpa, MD is a family medicine physician with a practice address in Yakima, Washington, and NPI 1356038566, issued on Apr 18, 2023. Check the license (Washington MD61686600, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Chinasa Phoebe Onyemkpa
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- MD61686600 WA
ML61430895 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1806 W Lincoln Ave, Yakima, WA 98902
- Phone
- (509) 452-4520
- Enumerated
- Apr 18, 2023
- Record last updated
- Sep 9, 2025
- Fax
- (509) 452-5224
- Medicaid ID
- 2255529 WA
- Entity
- Type 1 · individual
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Verify Chinasa Phoebe Onyemkpa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD61686600Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average family medicine physician in 2024
452 Medicare Part D claims for 60 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium37 claims
- Metformin Hcl28 claims
- Gabapentin22 claims
- Lisinopril18 claims
- Jardiance15 claims
- Levothyroxine Sodium14 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.
Chinasa Phoebe Onyemkpa among 5,534 family medicine physician records in Washington
Chinasa Phoebe Onyemkpa, 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 2023, is newer than 97% of them.
- NPI issued2023 · 97% of these records are older, 2% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2025 · 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
- Vicki Black, M.D.Yakima, WA 989021609875038
- Roger Bracchi, M.D.Yakima, WA 989021811996127
- Nathaniel Davenport, MDYakima, WA 989021871588921
- Gray Dawson, M.D.Yakima, WA 989021417937509
- John Dawson, M.D.Yakima, WA 989021114985090
- Mark Deramo, M.D.Yakima, WA 989021205835576
- Katherine Funk, M.D.Yakima, WA 989021093718843
- Brent Herr, MDYakima, WA 989021982670881
Common questions
What is Chinasa Phoebe Onyemkpa, MD's NPI number?
Chinasa Phoebe Onyemkpa, MD's National Provider Identifier (NPI) is 1356038566, issued on Apr 18, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Chinasa Phoebe Onyemkpa, MD located?
The NPPES record lists a practice address at 1806 W Lincoln Ave, Yakima, WA, 98902. Phone: (509) 452-4520. Providers update this record themselves, so call before visiting.
How can I verify Chinasa Phoebe Onyemkpa, MD's license?
NPPES lists Washington license number MD61686600, 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 Chinasa Phoebe Onyemkpa, MD prescribe under Medicare Part D?
In 2024, Chinasa Phoebe Onyemkpa, MD had 452 Medicare Part D claims for 60 beneficiaries; 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.