MARIAN ENIOLA AJANAKU M.D
NPI 1811300551
Internal Medicine in Falls Church, VA
About Marian Eniola Ajanaku M.d NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIAN ENIOLA AJANAKU M.D (NPI 1811300551) is an individual internal medicine provider in Falls Church, Virginia, licensed in Maryland (D83015) and active in the NPI registry since June 2014. She is enrolled in Medicare PECOS, is affiliated with Holy Cross Hospital, and is a graduate of Howard University College Of Medicine (2012).
NPPES Registry Identity
Specialties & Licenses
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
Marian Eniola Ajanaku M.d 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
3Medicare enrollment records show Marian Ajanaku reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Falls Church, VA 22042
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- 1,150 clinicians in this Medicare group
Frederick, MD 21701
- Reassigned Medicare billing, Maryland and District of Columbia enrollments
- Also billed through NPI 1992945471 (District of Columbia)
- 270 clinicians in this Medicare group
Elkton, MD 21921
- Reassigned Medicare billing, District of Columbia enrollment
- 347 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 4
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Holy Cross Hospital
Acute Care Hospitals · Silver Spring, MDAdventist Healthcare White Oak Medical Center
Acute Care Hospitals · Silver Spring, MDMedstar Montgomery Medical Center
Acute Care Hospitals · Olney, MDSuburban Hospital
Acute Care Hospitals · Bethesda, MDAdventist Healthcare Shady Grove Medical Center
Acute Care Hospitals · Rockville, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 22042 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.
Reported Quality Measures
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.
FALLS CHURCH, VA 22042
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 Marian Ajanaku's NPI number?
The NPI number for Marian Ajanaku is 1811300551. It was assigned to this individual provider in the NPPES registry on June 10, 2014.
Where is Marian Ajanaku located?
Marian Ajanaku practices at 3300 Gallows Rd, Falls Church, VA 22042. The listed phone number is (773) 574-3114.
What is Marian Ajanaku's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Marian Ajanaku enrolled in Medicare?
Yes. Marian Ajanaku 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 Marian Ajanaku's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marian Ajanaku reassigns Medicare benefits to 3 organizations: Emergency Medicine Associates P.A., P.C. (Falls Church, VA), Hospitalist Medicine Physicians Of Maryland PC (Frederick, MD) and Usacs Integrated Acute Care Services Of Maryland, LLC (Elkton, MD). 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 Marian Ajanaku's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Marian Ajanaku affiliated with any hospitals?
According to CMS data, Marian Ajanaku is affiliated with Holy Cross Hospital, Adventist Healthcare White Oak Medical Center, Medstar Montgomery Medical Center, Suburban Hospital and Adventist Healthcare Shady Grove Medical Center.
When was this NPI record last updated?
The NPPES record for Marian Ajanaku was last updated on April 8, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Marian Eniola Ajanaku, M.D · NPI 1811300551
Internal Medicine physician in Falls Church, Virginia. Individual provider, active in the CMS NPPES registry since June 10, 2014.
## Identity
- **NPI:** 1811300551 (Entity type: Individual)
- **Enumerated:** June 10, 2014
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** D83015 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 3300 GALLOWS RD, Falls Church, VA 22042-3307
- **Phone:** (773) 574-3114
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Emergency Medicine Associates P.A., P.C. (NPI 1134117393, Falls Church, VA); Hospitalist Medicine Physicians Of Maryland PC (NPI 1982402723, Frederick, MD); Usacs Integrated Acute Care Services Of Maryland, LLC (NPI 1922598929, Elkton, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Howard University College Of Medicine, class of 2012
## Record status
- **NPPES last updated:** April 8, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1811300551) · Data from the CMS NPPES public registry.