JOSEPH O NNADIKE MD
NPI 1497705701
Emergency Medicine in Washington, DC
About Joseph O Nnadike Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOSEPH O NNADIKE MD (NPI 1497705701) is an individual emergency medicine provider in Washington, District Of Columbia, licensed in West Virginia (18510) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Garrett Regional Medical Center, and is a graduate of Other (1988).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Joseph O Nnadike Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
8Medicare enrollment records show Joseph Nnadike reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Keyser, WV 26726
- Reassigned Medicare billing, West Virginia enrollment
- Medicare enrollment name: Potomac Valley Hospital Of W Va, Inc
- Also billed through NPI 1912979873 (West Virginia)
- 147 clinicians in this Medicare group
Grantsville, MD 21536
- Reassigned Medicare billing, Maryland enrollment
- 120 clinicians in this Medicare group
Oakland, MD 21550
- Reassigned Medicare billing, Maryland enrollment
- 19 clinicians in this Medicare group
Oak Hill, WV 25901
- Reassigned Medicare billing, West Virginia enrollment
- 35 clinicians in this Medicare group
Beckley, WV 25801
- Reassigned Medicare billing, West Virginia enrollment
- 80 clinicians in this Medicare group
Beckley, WV 25801
- Reassigned Medicare billing, West Virginia enrollment
- 183 clinicians in this Medicare group
Princeton, WV 24740
- Reassigned Medicare billing, West Virginia enrollment
- 280 clinicians in this Medicare group
- Reassigned Medicare billing, West Virginia enrollment
- 207 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Garrett Regional Medical Center
Acute Care Hospitals · Oakland, MDPrinceton Community Hospital
Acute Care Hospitals · Princeton, WVPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20032 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Joseph Nnadike's NPI number?
The NPI number for Joseph Nnadike is 1497705701. It was assigned to this individual provider in the NPPES registry on May 10, 2006.
Where is Joseph Nnadike located?
Joseph Nnadike practices at 1310 Southern Ave SE, Washington, DC 20032. The listed phone number is (202) 574-6000.
What is Joseph Nnadike's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Joseph Nnadike enrolled in Medicare?
Yes. Joseph Nnadike is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Joseph Nnadike's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Nnadike reassigns Medicare benefits to 8 organizations: Potomac Valley Hospital Of Wv, Inc. (Keyser, WV), Specialty Physicians Of Garrett County, LLC (Grantsville, MD), Professional Emergency Physician Services, LLC (Oakland, MD), Oak Hill Emergency Physicians, LLC (Oak Hill, WV), Beckley Emergency Physicians LLC (Beckley, WV) and 3 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Joseph Nnadike's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Joseph Nnadike accept?
Health plans from CareSource list Joseph Nnadike as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Joseph Nnadike affiliated with any hospitals?
According to CMS data, Joseph Nnadike is affiliated with Garrett Regional Medical Center and Princeton Community Hospital.
When was this NPI record last updated?
The NPPES record for Joseph Nnadike was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Joseph O Nnadike, MD · NPI 1497705701
Emergency Medicine physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since May 10, 2006.
## Identity
- **NPI:** 1497705701 (Entity type: Individual)
- **Enumerated:** May 10, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 18510 (West Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 1310 SOUTHERN AVE SE, Washington, DC 20032-4699
- **Phone:** (202) 574-6000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 8 organizations under Medicare reassignment (form CMS-855R): Potomac Valley Hospital Of Wv, Inc. (NPI 1578305256, Keyser, WV); Specialty Physicians Of Garrett County, LLC (NPI 1881361442, Grantsville, MD); Professional Emergency Physician Services, LLC (NPI 1477554129, Oakland, MD); Oak Hill Emergency Physicians, LLC (NPI 1891075057, Oak Hill, WV); Beckley Emergency Physicians LLC (NPI 1376757674, Beckley, WV); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1988
## Record status
- **NPPES last updated:** March 7, 2023
- **Other identifiers:** Other CS9609337 (DC); Medicaid 017124400 (DC)
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Source: [NPI Profile](https://npiprofile.com/npi/1497705701) · Data from the CMS NPPES public registry.