ANN MARY GRAHAM ACOSTA
NPI 1386267011
Nurse Practitioner in Waldorf, MD
About Ann Mary Graham Acosta NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANN MARY GRAHAM ACOSTA (NPI 1386267011) is an individual nurse practitioner in Waldorf, Maryland, licensed in Virginia (0024178957) and active in the NPI registry since May 2020. She is enrolled in Medicare PECOS, is affiliated with Medstar Union Memorial Hospital, and maintains a secondary practice location in Norfolk.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Ann Mary Graham Acosta 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 Ann Acosta reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Washington, DC 20036
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- 3,530 clinicians in this Medicare group
Towson, MD 21204
- Reassigned Medicare billing, Maryland enrollment
- 501 clinicians in this Medicare group
Norfolk, VA 23502
- Reassigned Medicare billing, Virginia enrollment
- 1,901 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 2
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Medstar Union Memorial Hospital
Acute Care Hospitals · Baltimore, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20601 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.
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 Ann Acosta's NPI number?
The NPI number for Ann Acosta is 1386267011. It was assigned to this individual provider in the NPPES registry on May 28, 2020.
Where is Ann Acosta located?
Ann Acosta practices at 2014 English Oak Ct, Waldorf, MD 20601. The listed phone number is (240) 298-5668.
What is Ann Acosta's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Ann Acosta enrolled in Medicare?
Yes. Ann Acosta 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 Ann Acosta's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ann Acosta reassigns Medicare benefits to 3 organizations: Medstar Medical Group II LLC (Washington, DC), University Of Maryland St. Joseph Medical Group, LLC (Towson, MD) and Sentara Medical Group (Norfolk, VA). 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 Ann Acosta's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Ann Acosta affiliated with any hospitals?
According to CMS data, Ann Acosta is affiliated with Medstar Union Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Ann Acosta was last updated on December 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Ann Mary Graham Acosta · NPI 1386267011
Nurse Practitioner physician in Waldorf, Maryland. Individual provider, active in the CMS NPPES registry since May 28, 2020.
## Identity
- **NPI:** 1386267011 (Entity type: Individual)
- **Enumerated:** May 28, 2020
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 0024178957 (Virginia)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2014 ENGLISH OAK CT, Waldorf, MD 20601-4505
- **Phone:** (240) 298-5668
## 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): Medstar Medical Group II LLC (NPI 1376887844, Washington, DC); University Of Maryland St. Joseph Medical Group, LLC (NPI 1770836785, Towson, MD); Sentara Medical Group (NPI 1265485270, Norfolk, VA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** December 16, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1386267011) · Data from the CMS NPPES public registry.