Dr. Joseph O. Nnadike, MD
- Medicare services, 2024
- 433
- Medicare patients, 2024
- 405
- Part D claims, 2024
- 340
- MIPS score, 2024
- 95
- Hospital affiliations
- 2
- Practice address
- 251 North Fourth Street, Oakland, MD 21550
- Practice phone
- Call (301) 533-4173
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Nnadike'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. Joseph O. Nnadike is an emergency medicine physician in Oakland, Maryland
Dr. Nnadike practices at WVU Medicine Garrett Regional Medical Center in Oakland, Maryland, part of West Virginia University Health System.
Dr. Nnadike's NPI, 1497705701, was assigned on May 10, 2006. Dr. Nnadike holds West Virginia license 18510.
- NPI
- 1497705701NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800788571
- NPI enumeration date
- May 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (301) 533-4173
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joseph O. Nnadike practices at WVU Medicine Garrett Regional Medical Center in Oakland, Maryland
Dr. Nnadike's primary practice is WVU Medicine Garrett Regional Medical Center, at 251 North Fourth Street, Oakland, MD 21550 in Garrett County. The practice phone is (301) 533-4173.
- WVU Medicine Garrett Regional Medical Center251 North Fourth Street, Oakland, MD 21550 · Garrett CountyPhone(301) 533-4173
Source: Dmand AI Affiliation Data
Dr. Joseph O. Nnadike is affiliated with 8 sites of care and 12 medical groups
Dr. Nnadike's primary practice is WVU Medicine Garrett Regional Medical Center in Oakland, Maryland, part of West Virginia University Health System. Dr. Nnadike is also affiliated with WVU Medicine Princeton Community Hospital. The medical group on file is Garrett Regional Medical Center. Dmand AI also links Dr. Nnadike to 11 more medical groups, 5 group practices and clinics and 1 skilled nursing facility, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Joseph O. Nnadike's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nnadike practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| WVU Medicine Garrett Regional Medical Center | Available with a free account |
| +7 more sites and 11 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joseph O. Nnadike is one of 1,057 emergency medicine physicians in Maryland
Emergency medicine is Dr. Nnadike's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Nnadike's licenses on file in 2 states: West Virginia and District of Columbia.
Specialties and state licenses
- Emergency medicine, West VirginiaPrimary
- District of Columbia license
Emergency medicine physicians near Dr. Nnadike
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Joseph O. Nnadike billed Medicare for 433 services in 2024
CMS data shows 433 Medicare services from Dr. Nnadike across 5 procedure codes in 2024, for 405 Medicare patients. Medicare paid $36,365 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Nnadike's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8222024: 43347%
Dr. Nnadike compared with the Maryland median for emergency medicine physicians, 2024
- Dr. Nnadike
- Maryland median
- Medicare services
- 433vs 30044% above
- Medicare patients
- 405vs 29239% above
- Part D claims
- 213vs 444.8 times
Medians across 1,040 emergency medicine physicians in Maryland with Dmand AI profiles that report each measure.
Dr. Nnadike's most billed Medicare procedure codes, 2024
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. Joseph O. Nnadike treated 405 Medicare patients in 2024, average age 75
CMS counts 405 Medicare patients who saw Dr. Nnadike in 2024. The largest group is 75 to 84, with 137 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 27% are also on Medicaid. Their average risk score is 1.63, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Nnadike's median patient age at 48, with 51% women.
Dr. Nnadike's Medicare patients by age, 2024
Dr. Nnadike's Medicare patients by sex, 2024
- Women21353%
- Men19247%
Chronic conditions among Dr. Nnadike's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Ischemic heart disease40%
- Diabetes38%
- Chronic kidney disease35%
- Heart failure35%
- Anxiety34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nnadike's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 48
Patient panel by sex, all payers
- Women51%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joseph O. Nnadike wrote 340 Medicare Part D claims in 2024
In 2024, Dr. Nnadike wrote 340 Medicare Part D claims for 221 patients. 97% of them were for generic drugs. CMS names the drug for 213 of them, across 11 drugs with 11 or more claims each, at $1,112 in total drug cost. In 2023, CMS named 349 claims across 13 drugs.
Dr. Nnadike's Part D claims by kind of drug, 2024
- Generic329 claims97%
- Brand-name and other11 claims3%
Dr. Nnadike'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. Nnadike's Part D claims, 2024
- Opioids14%47 of 340 claims
- Antibiotics31%106 of 340 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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3492024: 21339%
Drugs named by CMS: 11 in 2024, 13 in 2023.
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
Dr. Joseph O. Nnadike scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Nnadike for performance year 2024, reported through an alternative payment model (APM). Dr. Nnadike accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Nnadike's MIPS scores, performance year 2024
- 95of 100Final score
- 79.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Joseph O. Nnadike received $80 in industry payments from 2016 to 2019
CMS Open Payments shows 5 general payments to Dr. Nnadike from 2 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 74% of the total. Allergan Inc. paid the most, $59.
General payments to Dr. Nnadike by program year, 2016 to 2019
General payments to Dr. Nnadike by kind, 2016 to 2019
- Food and beverage$5974%
- Education$2126%
Companies that paid Dr. Nnadike the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Joseph O. Nnadike'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Joseph O. Nnadike
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. Joseph O. Nnadike's NPI number?
Dr. Joseph O. Nnadike's NPI number is 1497705701. It was assigned on May 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Joseph O. Nnadike?
Dr. Joseph O. Nnadike is an emergency medicine physician in Oakland, Maryland. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Joseph O. Nnadike practice?
Dr. Nnadike practices at 251 North Fourth Street, Oakland, MD 21550. Dr. Nnadike's primary practice is WVU Medicine Garrett Regional Medical Center in Oakland, Maryland, part of West Virginia University Health System. Dmand AI also links Dr. Nnadike to 11 medical groups, 5 group practices and clinics and 1 skilled nursing facility.
What is Dr. Joseph O. Nnadike's office phone number?
The practice phone on file for Dr. Nnadike is (301) 533-4173.
What is Dr. Joseph O. Nnadike's medical license number?
Dr. Nnadike holds West Virginia license 18510, one of the licenses on file in 2 states.
Which states has Dr. Joseph O. Nnadike been licensed in?
Dmand AI has state licenses on file for Dr. Nnadike in West Virginia and District of Columbia.
Which hospitals is Dr. Joseph O. Nnadike affiliated with?
Dr. Nnadike practices at WVU Medicine Garrett Regional Medical Center in Oakland, Maryland. Dr. Nnadike is also affiliated with WVU Medicine Princeton Community Hospital.
What medical group is Dr. Joseph O. Nnadike part of?
Dr. Nnadike is linked to Garrett Regional Medical Center. Dmand AI links Dr. Nnadike to 11 more medical groups.
Does Dr. Joseph O. Nnadike accept Medicare?
Yes. CMS data shows Dr. Nnadike billed Medicare for 433 services in 2024, and Dr. Nnadike accepts Medicare assignment.
What is Dr. Joseph O. Nnadike's MIPS score?
Dr. Nnadike's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
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How many Medicare patients does Dr. Joseph O. Nnadike see?
CMS counts 405 Medicare patients who saw Dr. Nnadike in 2024, with an average age of 75.
What services does Dr. Joseph O. Nnadike bill to Medicare?
In 2024, Dr. Nnadike's most billed Medicare services were emergency department visit (99284), emergency department visit (99285) and emergency department visit (99283).
What drugs does Dr. Joseph O. Nnadike prescribe most?
In 2024 Medicare Part D data, Dr. Nnadike's most prescribed drugs by claims were Prednisone, Ondansetron ODT and Amoxicillin-Clavulanate Potass.
Has Dr. Joseph O. Nnadike received payments from drug or device companies?
CMS Open Payments shows $80 in general payments to Dr. Nnadike from 2 companies from 2016 to 2019. The largest total came from Allergan Inc.
How long has Dr. Joseph O. Nnadike been practicing?
Dr. Nnadike graduated from medical school in 1988, 38 years ago.
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