Onyinye Ahamba, M.D
Internal Medicine Physician · Redlands, CA
Onyinye Ahamba, M.D is an internal medicine physician with a practice address in Redlands, California, and NPI 1164835237, issued on Jun 6, 2014. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Onyinye Ahamba
- Credential
- M.D
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 2 W Fern Ave, Redlands, CA 92373
- Phone
- (909) 786-0725
- Enumerated
- Jun 6, 2014
- Entity
- Type 1 · individual
Also registered at 2 W Fern Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nkeiruka Abanobi, NPObstetrics & Gynecology Nurse Practitioner1982009007
- Hanan Abu Alnaaj, MDFamily Medicine Physician1235319385
- James Agee, M.D.Urology Physician1851345722
- Arun Agrawal, D.O.Anesthesiology Physician1184677650
- Amanda Aguilera, M.D.Diagnostic Radiology Physician1679782049
- Noura Aman, PAPhysician Assistant1285285080
Verify Onyinye Ahamba in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
46 Medicare Part D claims for 35 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D.
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.
72 internal medicine physician records list a Redlands practice address
They are 72 of the 2,498 NPPES records with a Redlands practice address, and 20,403 internal medicine physician records in California.
All 72 in Redlands → All 20,403 in California → Every provider in Redlands →
Other internal medicine physician records in California
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- Donna Abare, MDOakland, CA1386722155
- Marce AbareScotts Valley, CA1457744708
- Samuel Abarte, M.D.Chula Vista, CA1578535498
- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
- Michael Abate, MDSacramento, CA1548248131
- Wali Abawi, D.O.Joshua Tree, CA1104362268
Common questions
What is Onyinye Ahamba, M.D's NPI number?
Onyinye Ahamba, M.D's National Provider Identifier (NPI) is 1164835237, issued on Jun 6, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Onyinye Ahamba, M.D located?
The NPPES record lists a practice address at 2 W Fern Ave, Redlands, CA, 92373. Phone: (909) 786-0725. Providers update this record themselves, so call before visiting.
How can I verify Onyinye Ahamba, M.D's license?
Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Onyinye Ahamba, M.D prescribe under Medicare Part D?
In 2024, Onyinye Ahamba, M.D had 46 Medicare Part D claims for 35 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.