HAWA MASSAQUOI OSIME MD
NPI 1154539815
Internal Medicine in White Plains, MD
About Hawa Massaquoi Osime Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HAWA MASSAQUOI OSIME MD (NPI 1154539815) is an individual internal medicine provider in White Plains, Maryland, licensed in Maryland (D81699) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, is affiliated with Medstar Southern Maryland Hospital Center, and is a graduate of Wayne State University School Of Medicine (2004).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Other Identifiers 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
Hawa Massaquoi Osime 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
4Medicare enrollment records show Hawa Osime reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Arlington, VA 22203
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- Also billed through NPI 1669293668 (Maryland), NPI 1124629837 (Maryland)
- 691 clinicians in this Medicare group
Arlington, VA 22203
- Reassigned Medicare billing, Maryland enrollment
- 668 clinicians in this Medicare group
Washington, DC 20036
- Reassigned Medicare billing, Maryland enrollment
- 2,602 clinicians in this Medicare group
Gardendale, AL 35071
- Reassigned Medicare billing, District of Columbia enrollment
- 106 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 10
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 Southern Maryland Hospital Center
Acute Care Hospitals · Clinton, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20695 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 4
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WHITE PLAINS, MD 20695
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 Hawa Osime's NPI number?
The NPI number for Hawa Osime is 1154539815. It was assigned to this individual provider in the NPPES registry on May 18, 2007. The provider is also known as Hawa Samanya Massaquoi M.D..
Where is Hawa Osime located?
Hawa Osime practices at 4225 Altamont Pl Ste 201, White Plains, MD 20695. The listed phone number is (240) 607-1500.
What is Hawa Osime's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Hawa Osime enrolled in Medicare?
Yes. Hawa Osime 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 Hawa Osime's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hawa Osime reassigns Medicare benefits to 4 organizations: Johns Hopkins Community Physicians (Arlington, VA), Privia Medical Group, LLC (Arlington, VA), Medstar Medical Group II LLC (Washington, DC) and Alignmed Partners, PC (Gardendale, AL). 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 Hawa Osime's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Hawa Osime affiliated with any hospitals?
According to CMS data, Hawa Osime is affiliated with Medstar Southern Maryland Hospital Center.
When was this NPI record last updated?
The NPPES record for Hawa Osime was last updated on May 29, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.