Yasser Hadj Ousman, MD
Endocrinology (CMS) · Fairfax, VA
At a glance
2740 Prosperity Ave Ste 200, Fairfax, VA 22031-4354
NPPES record updated Aug 5, 2025. Public records can lag behind changes at a practice.
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- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
2740 Prosperity Ave Ste 200Fairfax, VA 22031-4354
Additional reported practice locations
354 Alexander Spring RoadWellspan Endocrinology
Carlisle, PA 170157451
Phone: 7172176820 12 St Paul Drive
Wellspan Endocrinology
Chambersburg, PA 17201
Phone: 7172176820 601 East Main Street
N/A
Waynesboro, PA 172682332
Phone: 7172176820 24 Antrim Commons Drive
Wellspan Endocrinology
Greencastle, PA 172251623
Phone: 7172176820 145 Hospital Ave Ste 101
Du Bois, PA 158011463
Phone: 8143754089
Fax: 8143754067 88 Hospital Rd Fl 2
Brookville, PA 158251368
Phone: 8143754089
Fax: 8143754067 21911 Route 119
Punxsutawney, PA 157677922
Phone: 8143754089
Fax: 8143754067
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 1988
- CMS specialties
- Endocrinology
Practice groups
Reported hospital affiliations
- Penn Highlands Brookville Brookville, PA
- Penn Highlands Dubois Dubois, PA
- Penn Highlands Elk Saint Marys, PA
- Wellspan Chambersburg Hospital Chambersburg, PA
- Wellspan Waynesboro Hospital Waynesboro, PA
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $612.73 |
Reporting companies
| Company | Amount |
|---|---|
| XERIS PHARMACEUTICALS, INC. | $127.04 |
| NOVO NORDISK INC | $56.70 |
| ABBVIE INC. | $48.82 |
| ABBOTT LABORATORIES | $42.78 |
| LILLY USA, LLC | $37.93 |
| ASCENDIS PHARMA ENDOCRINOLOGY INC | $37.88 |
| AVERITAS PHARMA INC. | $26.79 |
| SEQUEL MED TECH, LLC | $24.79 |
| Other reporting companies | $210.00 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Endocrinology (CMS)
- Taxonomy code
- 207RE0101X
- Enumeration date
- May 10, 2006
- Record updated
- Aug 5, 2025
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD
Reported taxonomies and licenses
207RE0101X
License reported: MD31598 DC
207RE0101X
License reported: MD478729 PA
207RE0101X · Primary
License reported: 0101058348 VA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
2740 Prosperity Ave Ste 200Fairfax, VA 22031-4354
- Phone
- (571) 623-3480
- Fax
- (703) 204-9006
Mailing address
2740 PROSPERITY AVE STE 200FAIRFAX, VA 220314354
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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