Nnenna I. Nwogu, M.D.
Internal Medicine Physician · Emeryville, CA
Nnenna I. Nwogu, M.D. is an internal medicine physician with a practice address in Emeryville, California, and NPI 1255711461, issued on Jun 2, 2015. Check the license (California A167615, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nnenna I. Nwogu
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A167615 CA
294294 NY
Self-reported in NPPES; status is on the state search - Practice location
- 5800 Hollis St, Emeryville, CA 94608
- Phone
- (510) 806-2100
- Enumerated
- Jun 2, 2015
- Record last updated
- Apr 22, 2024
- Medicare enrollment
- Enrolled (PECOS I20220406001151); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 2015
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 5800 Hollis St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emily Birnbaum, FNPNurse Practitioner1194355446
- Grace Eng, MDEndocrinology, Diabetes & Metabolism Physician1871552679
- Tara Farah, MDFamily Medicine Physician1851829642
- Julia Fellows, PA-CPhysician Assistant1568970838
- Victoria He, PHARM.D.Pharmacist1508207671
- Cory Hillis, AUDAudiologist1275151979
Verify Nnenna I. Nwogu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A167615Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,411 Medicare Part D claims for 372 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 20 claims were for opioids.
Most prescribed
- Atorvastatin Calcium241 claims
- Amlodipine Besylate155 claims
- Rosuvastatin Calcium123 claims
- Lisinopril105 claims
- Losartan Potassium99 claims
- Levothyroxine Sodium97 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.
Bills Medicare through one group practice
- University Healthcare AllianceMenlo Park, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nnenna I. Nwogu among 17,696 internal medicine physician records in California
Nnenna I. Nwogu, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 76% of them.
- NPI issued2015 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2015 · median 2004 among the 11,065 with a school on file
- Record last updated2024 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
24 internal medicine physician records list a practice address in Emeryville
They are 24 of the 703 NPPES records with a practice address in Emeryville, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Emeryville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Clay Angel, M.D.Emeryville, CA 946081477522548
- Nelson Bunin, MDEmeryville, CA 946081508812363
- Jose Camaro, M.D.Emeryville, CA 946081679532808
- Janet Ewing, MDEmeryville, CA 946081316987027
- Kou-Ying Hsieh, M.D.Emeryville, CA 946081447208731
- Curtis Johnson, M.D.Emeryville, CA 946081336118421
- Dean Nickles, MDEmeryville, CA 946081255390050
- Brian Roberts, M.D.Emeryville, CA 946081831158120
Common questions
What is Nnenna I. Nwogu, M.D.'s NPI number?
Nnenna I. Nwogu, M.D.'s National Provider Identifier (NPI) is 1255711461, issued on Jun 2, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Nnenna I. Nwogu, M.D. located?
The NPPES record lists a practice address at 5800 Hollis St, Emeryville, CA, 94608. Phone: (510) 806-2100. Providers update this record themselves, so call before visiting.
How can I verify Nnenna I. Nwogu, M.D.'s license?
NPPES lists California license number A167615, 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 Nnenna I. Nwogu, M.D. prescribe under Medicare Part D?
In 2024, Nnenna I. Nwogu, M.D. had 2,411 Medicare Part D claims for 372 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.