Nnennaya Ekwutosi Nwokeji, M.D.
Psychiatry Physician · Antioch, CA
Nnennaya Ekwutosi Nwokeji, M.D. is a psychiatry physician with a practice address in Antioch, California, and NPI 1366737652, issued on Jun 14, 2011. Check the license (California A131564, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nnennaya Ekwutosi Nwokeji
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A131564 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3454 Hillcrest Ave, Antioch, CA 94531
- Phone
- (925) 325-8083
- Enumerated
- Jun 14, 2011
- Record last updated
- Dec 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160908002496); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 3454 Hillcrest Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samantha Aguilar, PSYDClinical Psychologist1467310151
- Melanie Akalal, M.D.Psychiatry Physician1386723971
- Arwin Angelae Cotas-Girard, PSY.D.Clinical Psychologist1649539503
- Jared Cozen, LMHCClinical Psychologist1235206806
- Natalia Diavatis, PSYDClinical Psychologist1316647027
- Staci Digioia, PSY.D.Clinical Psychologist1558709600
Verify Nnennaya Ekwutosi Nwokeji in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A131564Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average psychiatry physician in 2024
2,608 Medicare Part D claims for 246 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.
Most prescribed
- Trazodone Hcl267 claims
- Gabapentin160 claims
- Bupropion Xl153 claims
- Quetiapine Fumarate148 claims
- Venlafaxine Hcl Er143 claims
- Lorazepam118 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
- Permanente Medical Group IncAntioch, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nnennaya Ekwutosi Nwokeji among 8,673 psychiatry physician records in California
Nnennaya Ekwutosi Nwokeji, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 63% of them.
- NPI issued2011 · 63% of these records are older, 34% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated1997 · median 2005 among the 3,295 with a school on file
- Record last updated2021 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in California
There are 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Antioch → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Melanie Akalal, M.D.Antioch, CA 945311386723971
- Li Lan, M.D.Antioch, CA 945311366683112
- Ronald Leon, M.D.Antioch, CA 945311467418830
- Christine Lim, M.D.Antioch, CA 945311639321771
- Roya Noorishad, MDAntioch, CA 945311790195634
- Michael Rogers, M.D.El Cerrito, CA 945301891085510
- Jocelyn Cruz, MDFairfield, CA 945331033270400
- Homayoun Faghihi-Shirazi, M.D.Fairfield, CA 945331235244294
Common questions
What is Nnennaya Ekwutosi Nwokeji, M.D.'s NPI number?
Nnennaya Ekwutosi Nwokeji, M.D.'s National Provider Identifier (NPI) is 1366737652, issued on Jun 14, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Nnennaya Ekwutosi Nwokeji, M.D. located?
The NPPES record lists a practice address at 3454 Hillcrest Ave, Antioch, CA, 94531. Phone: (925) 325-8083. Providers update this record themselves, so call before visiting.
How can I verify Nnennaya Ekwutosi Nwokeji, M.D.'s license?
NPPES lists California license number A131564, 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 Nnennaya Ekwutosi Nwokeji, M.D. prescribe under Medicare Part D?
In 2024, Nnennaya Ekwutosi Nwokeji, M.D. had 2,608 Medicare Part D claims for 246 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.