Onyinye Nwankwo Ahamba, M.D
Hospitalist Physician · Redlands, CA
Onyinye Nwankwo Ahamba, M.D is a hospitalist physician with a practice address in Redlands, California, and NPI 1164835237, issued on Jun 6, 2014. Check the license (California A147546, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Onyinye Nwankwo Ahamba
- Credential
- M.D
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- A147546 CA
MT207319 PA
Self-reported in NPPES; status is on the state search - Practice location
- 2 W Fern Ave, Redlands, CA 92373
- Phone
- (909) 786-0725
- Enumerated
- Jun 6, 2014
- Record last updated
- Dec 7, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
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, NPWomen's Health 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 Nwankwo Ahamba in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A147546Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average hospitalist physician in 2024
46 Medicare Part D claims for 35 beneficiaries, against an average of 521 among the 21,613 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.
Onyinye Nwankwo Ahamba among 3,099 hospitalist physician records in California
Onyinye Nwankwo Ahamba, M.D is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 61% of them.
- NPI issued2014 · 61% of these records are older, 34% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileNo · 81% of these records are
- Record last updated2021 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Redlands → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Marvin Brauer, M.D.Redlands, CA 923731043219314
- Liana Diants, M.D.Redlands, CA 923731619105608
- Linh Khuu, M.D.Redlands, CA 923731568751584
- Jin Hee Kim, M.D.Redlands, CA 923731124310263
- John Lee, M.D.Redlands, CA 923731477870186
- Jose Makalinao, MDRedlands, CA 923731659460327
- Feras Naeem, M.D.Redlands, CA 923731356517288
- Sameh Naseib, M.D.Redlands, CA 923731124076344
Common questions
What is Onyinye Nwankwo Ahamba, M.D's NPI number?
Onyinye Nwankwo 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 Nwankwo 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 Nwankwo Ahamba, M.D's license?
NPPES lists California license number A147546, as entered by the provider. 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 Nwankwo Ahamba, M.D prescribe under Medicare Part D?
In 2024, Onyinye Nwankwo Ahamba, M.D had 46 Medicare Part D claims for 35 beneficiaries; the average among hospitalist physician prescribers was 521. 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.