Early Interv Psychiatry
Educational StatusMotivationParents
Dr. Obiora S. Nnaji, MD
NPI1649654013PAC ID0749528057
- Medicare services, 2022
- 23
- Part D claims, 2024
- 137
- Publications
- 2
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 462 First Avenue, New York, NY 10016
- Practice phone
- Call (212) 561-4132
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nnaji's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Obiora S. Nnaji is a psychiatrist in New York, New York
Dr. Nnaji practices at NYC Health + Hospitals/Bellevue in New York, New York, part of NYC.
Dr. Nnaji's NPI, 1649654013, was assigned on July 16, 2015. Dr. Nnaji graduated from University of Science and Technology School of Medicine in 2009. Dr. Nnaji holds New York license 298410.
NPI and contact details
- NPI
- 1649654013NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0749528057
- NPI enumeration date
- July 16, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (212) 561-4132
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Obiora S. Nnaji practices at NYC Health + Hospitals/Bellevue in New York, New York
Dr. Nnaji's primary practice is NYC Health + Hospitals/Bellevue, at 462 First Avenue, New York, NY 10016 in New York County. The practice phone is (212) 561-4132.
- NYC Health + Hospitals/Bellevue462 First Avenue, New York, NY 10016 · New York CountyPhone(212) 561-4132
Source: Dmand AI Affiliation Data
Dr. Obiora S. Nnaji is affiliated with 1 site of care and 1 medical group
Dr. Nnaji's primary practice is NYC Health + Hospitals/Bellevue in New York, New York, part of NYC. The medical group on file is NYC Health + Hospitals. Dr. Nnaji's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Obiora S. Nnaji's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nnaji practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| NYC Health + Hospitals/Bellevue | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Obiora S. Nnaji is one of 4,448 psychiatrists in New York
Psychiatry is Dr. Nnaji's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Nnaji is licensed in New York.
Specialties and state licenses
- Psychiatry, New YorkPrimary
Psychiatrists near Dr. Nnaji
Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.
4,448psychiatrists in New York1,638psychiatrists in New York61psychiatrists at NYC Health + Hospitals/Bellevue
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Obiora S. Nnaji billed Medicare for 23 services in 2022
CMS data shows 23 Medicare services from Dr. Nnaji across 1 procedure code in 2022. Medicare paid $1,604 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202223
Paid by Medicare$1,604
Procedure codes1
Dr. Nnaji's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 572022: 2360%
Dr. Nnaji compared with the New York median for psychiatrists, 2022
- Dr. Nnaji
- New York median
- Medicare services
- 23vs 14284% below
- Part D claims
- 12vs 12490% below
Medians across 5,024 psychiatrists in New York with Dmand AI profiles that report each measure.
Dr. Nnaji's most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Obiora S. Nnaji's patients have a median age of 47
Across all payers, Dmand AI patient panel data puts Dr. Nnaji's median patient age at 47, with 7% women.
Dr. Nnaji's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 47
Patient panel by sex, all payers
- Women7%
- Men80%
Source: Dmand AI Patient Panel Data
Dr. Obiora S. Nnaji wrote 137 Medicare Part D claims in 2024
In 2024, Dr. Nnaji wrote 137 Medicare Part D claims for 32 patients. 88% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $208 in total drug cost. In 2022, CMS named 129 claims across 9 drugs.
Part D claims, 2024137
Drugs named by CMS1
Total drug cost$208
Part D patients32
Dr. Nnaji's Part D claims by kind of drug, 2024
- Generic120 claims88%
- Brand-name and other17 claims12%
Dr. Nnaji's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Nnaji's Part D claims, 2024
- Antipsychotics, patients 65 and over9%13 of 137 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 1292024: 1291%
Drugs named by CMS: 1 in 2024, 9 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Obiora S. Nnaji takes part in Medicare
Dr. Nnaji accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Obiora S. Nnaji has 2 publications on record
Dmand AI links 2 papers to Dr. Nnaji, published from 2016 to 2021. Dr. Nnaji's most frequent co-author is Cheryl Mary Corcoran, MD.
Papers2
Years published2016 to 2021
Dr. Nnaji's most frequent co-authors
Recent publications by Dr. Nnaji
Ambulatory CareAttitude of Health PersonnelCommunity Health Services
See who Dr. Nnaji researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Nnaji works with, so you can find a warm path to the right psychiatrists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Obiora S. Nnaji graduated from University of Science and Technology School of Medicine
Dr. Nnaji graduated from University of Science and Technology School of Medicine in 2009.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Obiora S. Nnaji's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Obiora S. Nnaji
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Obiora S. Nnaji's NPI number?
Dr. Obiora S. Nnaji's NPI number is 1649654013. It was assigned on July 16, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Obiora S. Nnaji?
Dr. Obiora S. Nnaji is a psychiatrist in New York, New York. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Obiora S. Nnaji practice?
Dr. Nnaji practices at 462 First Avenue, New York, NY 10016. Dr. Nnaji's primary practice is NYC Health + Hospitals/Bellevue in New York, New York, part of NYC.
What is Dr. Obiora S. Nnaji's office phone number?
The practice phone on file for Dr. Nnaji is (212) 561-4132.
What is Dr. Obiora S. Nnaji's medical license number?
Dr. Nnaji holds New York license 298410.
Which hospitals is Dr. Obiora S. Nnaji affiliated with?
Dr. Nnaji practices at NYC Health + Hospitals/Bellevue in New York, New York.
What medical group is Dr. Obiora S. Nnaji part of?
Dr. Nnaji is linked to NYC Health + Hospitals.
Does Dr. Obiora S. Nnaji accept Medicare?
Yes. CMS data shows Dr. Nnaji billed Medicare for 23 services in 2022, and Dr. Nnaji accepts Medicare assignment.
What services does Dr. Obiora S. Nnaji bill to Medicare?
In 2022, Dr. Nnaji's most billed Medicare services were hospital inpatient care (99232).
Where did Dr. Obiora S. Nnaji go to medical school?
Dr. Nnaji graduated from University of Science and Technology School of Medicine in 2009.
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What drugs does Dr. Obiora S. Nnaji prescribe most?
In 2024 Medicare Part D data, Dr. Nnaji's most prescribed drugs by claims were Mirtazapine.
How long has Dr. Obiora S. Nnaji been practicing?
Dr. Nnaji graduated from medical school in 2009, 17 years ago.
Does Dr. Obiora S. Nnaji do research?
Dmand AI links 2 publications to Dr. Nnaji, published from 2016 to 2021.
Who does Dr. Obiora S. Nnaji publish with?
Dr. Nnaji's most frequent co-authors are Cheryl Mary Corcoran, MD (1 shared paper).
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