DR. NNAMDI A DAVIS MD
NPI 1609801430
Obstetrics & Gynecology in Waldorf, MD
About Dr. Nnamdi A Davis Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NNAMDI A DAVIS MD (NPI 1609801430) is an individual obstetrics & gynecology provider in Waldorf, Maryland, licensed in Maryland (42819) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with St Mary Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 1
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
Dr. Nnamdi A Davis 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
10Medicare enrollment records show Nnamdi Davis reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
La Plata, MD 20646
- Reassigned Medicare billing, Maryland enrollment
- 966 clinicians in this Medicare group
Washington, DC 20036
- Reassigned Medicare billing, Maryland enrollment
- 2,602 clinicians in this Medicare group
Rockville, MD 20850
- Reassigned Medicare billing, Maryland enrollment
- 114 clinicians in this Medicare group
Littlestown, PA 17340
- Reassigned Medicare billing, Pennsylvania enrollment
- 1,902 clinicians in this Medicare group
Cumberland, MD 21502
- Reassigned Medicare billing, Maryland enrollment
- 318 clinicians in this Medicare group
Springfield, PA 19064
- Reassigned Medicare billing, Pennsylvania enrollment
- 646 clinicians in this Medicare group
New Paris, PA 15554
- Reassigned Medicare billing, Pennsylvania enrollment
- 771 clinicians in this Medicare group
Kingston, PA 18704
- Reassigned Medicare billing, Pennsylvania enrollment
- 73 clinicians in this Medicare group
Oneida, NY 13421
- Reassigned Medicare billing, New York enrollment
- 13 clinicians in this Medicare group
Oneida, NY 13421
- Reassigned Medicare billing, New York enrollment
- 46 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Mary Medical Center
Acute Care Hospitals · Langhorne, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20603 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Nnamdi Davis's NPI number?
The NPI number for Nnamdi Davis is 1609801430. It was assigned to this individual provider in the NPPES registry on July 11, 2006.
Where is Nnamdi Davis located?
Nnamdi Davis practices at 5707 Pompano Ct, Waldorf, MD 20603. The listed phone number is (301) 932-7463.
What is Nnamdi Davis's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Nnamdi Davis enrolled in Medicare?
Yes. Nnamdi Davis 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 Nnamdi Davis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nnamdi Davis reassigns Medicare benefits to 10 organizations: University Of Maryland Community Medical Group, Inc. (La Plata, MD), Medstar Medical Group II LLC (Washington, DC), Obhg Maryland PC (Rockville, MD), Pinnacle Health Medical Services (Littlestown, PA), Upmc Western Maryland Health Services, LLC (Cumberland, MD) and 5 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 Nnamdi Davis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nnamdi Davis accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Nnamdi Davis 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 Nnamdi Davis affiliated with any hospitals?
According to CMS data, Nnamdi Davis is affiliated with St Mary Medical Center.
When was this NPI record last updated?
The NPPES record for Nnamdi Davis was last updated on July 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.
# Dr. Nnamdi A Davis, MD · NPI 1609801430
Obstetrics & Gynecology physician in Waldorf, Maryland. Individual provider, active in the CMS NPPES registry since July 11, 2006.
## Identity
- **NPI:** 1609801430 (Entity type: Individual)
- **Enumerated:** July 11, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 42819 (Maryland)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 5707 POMPANO CT, Waldorf, MD 20603-4239
- **Phone:** (301) 932-7463
## 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:** 10 organizations under Medicare reassignment (form CMS-855R): University Of Maryland Community Medical Group, Inc. (NPI 1679393854, La Plata, MD); Medstar Medical Group II LLC (NPI 1376887844, Washington, DC); Obhg Maryland PC (NPI 1821803628, Rockville, MD); Pinnacle Health Medical Services (NPI 1669950440, Littlestown, PA); Upmc Western Maryland Health Services, LLC (NPI 1376302729, Cumberland, MD); and 5 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Louisville School Of Medicine, class of 1988
## Record status
- **NPPES last updated:** July 10, 2025
- **Other identifiers:** Medicaid 516100800 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1609801430) · Data from the CMS NPPES public registry.