Active NPI
Yasser Hadj Ousman, MD
- Endocrinology, Diabetes & Metabolism Physician
- Fairfax, VA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Endocrinology, Diabetes & Metabolism Physician
- License
- 0101058348
- Practice address
- 2740 Prosperity Ave Ste 200
Fairfax, VA 22031-4354 - Phone
- (571) 623-3480
- Fax
- (703) 204-9006
- NPI assigned
- May 10, 2006
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Endocrinology, Diabetes & Metabolism Physician | 207RE0101X | MD31598 | DC | |
| Endocrinology, Diabetes & Metabolism Physician | 207RE0101X | MD478729 | PA | |
| Endocrinology, Diabetes & Metabolism Physician | 207RE0101X | 0101058348 | VA | Primary |
Addresses
Primary practice location
2740 Prosperity Ave Ste 200
Fairfax, VA 22031-4354
Mailing address
2740 Prosperity Ave Ste 200
Fairfax, VA 22031-4354
Phone (877) 511-4625
Other practice location 1
354 Alexander Spring Road
WellSpan Endocrinology
Carlisle, PA 17015-7451
Phone (717) 217-6820
Other practice location 2
12 St Paul Drive
WellSpan Endocrinology
Chambersburg, PA 17201
Phone (717) 217-6820
Other practice location 3
601 East Main Street
N/a
Waynesboro, PA 17268-2332
Phone (717) 217-6820
Other practice location 4
24 Antrim Commons Drive
WellSpan Endocrinology
Greencastle, PA 17225-1623
Phone (717) 217-6820
Other practice location 5
145 Hospital Ave Ste 101
Du Bois, PA 15801-1463
Phone (814) 375-4089
Other practice location 6
88 Hospital Rd Fl 2
Brookville, PA 15825-1368
Phone (814) 375-4089
Other practice location 7
21911 Route 119
Punxsutawney, PA 15767-7922
Phone (814) 375-4089
Other identifiers 4
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 025800300 | Medicaid | DC | |
| 697102400 | Medicaid | MD | |
| 5863368 | Medicaid | VA | |
| 104059528 | Medicaid | PA |
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | yousman166714@soc.inova.org | Health Information Exchange (HIE) | Inova Health Care Services |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in DC, VA, PA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 3
Care Compare profile
Medicare Care Compare- Specialty
- Endocrinology
- Education
- Other, 1988
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
21911 Route 119
Punxsutawney, PA 15767-7922
Phone (814) 375-4089
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MD31598 | DC | MD | Endocrinology, Diabetes & Metabolism Physician |
| 0101058348 | VA | MD | Endocrinology, Diabetes & Metabolism Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Inova Health Care Services | Current | Accepting new patients | |
| Dubois Regional Medical Center | Current | Accepting new patients | |
| Inova Health Care Services | Current | Accepting new patients | |
| Inova Health Care Services | Current | Accepting new patients | |
| Dubois Regional Medical Center | Endocrinology, Diabetes & Metabolism | Current | Accepting new patients |
| Inova Health Care Services | Current | Accepting new patients | |
| Frederick Health Hospital Inc | Past | Accepting new patients | |
| Washington Hospital Center Corp | Past | Accepting new patients | |
| Dubois Regional Medical Center | Past | Accepting new patients |
Locations
88 Hospital Rd
Fl 2
Brookville, PA 15825
Phone (814) 371-2100
100 Hospital Ave
Dubois, PA 15801
Phone (814) 375-2040
145 Hospital Ave
Ste 101
Dubois, PA 15801
Phone (814) 375-5305
21911 Route 119
Punxsutawney, PA 15767
Phone (814) 249-7410
2740 Prosperity Ave
Ste 200
Fairfax, VA 22031
Phone (703) 208-2273
3300 Gallows Rd
Falls Church, VA 22042
Phone (703) 352-9395
224B Cornwall St NW
Leesburg, VA 20176
Phone (703) 771-2894
211 Gibson St NW
Ste 220
Leesburg, VA 20176
Phone (703) 799-5465
Interoperability endpoints
- yousman166714@soc.inova.org
Organizations & group practices 9
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Endocrinology, Diabetes & Metabolism Physician
- Du Bois, PA
- NPI 1245341387
-
- Substance Abuse Rehabilitation Facility
- Falls Church, VA
- NPI 1588717755
-
- Multi-Specialty Clinic/Center
- Fairfax, VA
- NPI 1669511051
-
- Medical Technologist
- Sterling, VA
- NPI 1699655589
-
- Pharmacy
- Ridgway, PA
- NPI 1366900458
-
- General Acute Care Hospital
- Du Bois, PA
- NPI 1144249657
-
- General Acute Care Hospital
- Frederick, MD
- NPI 1538165527
-
- Psychiatry Physician
- Washington, DC
- NPI 1881637619
Hospital & facility affiliations 40
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Critical Access Hospital
- Brookville, PA
- NPI 1760452924
-
- Maternal & Fetal Medicine Physician
- Du Bois, PA
- NPI 1033213608
Hospital
-
- General Acute Care Hospital
- Du Bois, PA
- NPI 1144249657
-
- Endocrinology, Diabetes & Metabolism Physician
- Du Bois, PA
- NPI 1245341387
Hospital
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1147219200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1754352000000",
"number": "1801845284",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2740 PROSPERITY AVE STE 200",
"city": "FAIRFAX",
"state": "VA",
"postal_code": "220314354",
"telephone_number": "877-511-4625",
"fax_number": "703-698-2506"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2740 PROSPERITY AVE STE 200",
"city": "FAIRFAX",
"state": "VA",
"postal_code": "220314354",
"telephone_number": "571-623-3480",
"fax_number": "703-204-9006"
}
],
"practiceLocations": [
{
"address_1": "354 Alexander Spring Road",
"address_2": "WellSpan Endocrinology",
"address_purpose": "LOCATION",
"city": "Carlisle",
"state": "PA",
"postal_code": "170157451",
"country_code": "US",
"telephone_number": "717-217-6820",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "12 St Paul Drive",
"address_2": "WellSpan Endocrinology",
"address_purpose": "LOCATION",
"city": "Chambersburg",
"state": "PA",
"postal_code": "17201",
"country_code": "US",
"telephone_number": "717-217-6820",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "601 East Main Street",
"address_2": "N/A",
"address_purpose": "LOCATION",
"city": "Waynesboro",
"state": "PA",
"postal_code": "172682332",
"country_code": "US",
"telephone_number": "717-217-6820",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "24 Antrim Commons Drive",
"address_2": "WellSpan Endocrinology",
"address_purpose": "LOCATION",
"city": "Greencastle",
"state": "PA",
"postal_code": "172251623",
"country_code": "US",
"telephone_number": "717-217-6820",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "145 Hospital Ave Ste 101",
"address_purpose": "LOCATION",
"city": "Du Bois",
"state": "PA",
"postal_code": "158011463",
"country_code": "US",
"telephone_number": "814-375-4089",
"fax_number": "814-375-4067",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "88 Hospital Rd Fl 2",
"address_purpose": "LOCATION",
"city": "Brookville",
"state": "PA",
"postal_code": "158251368",
"country_code": "US",
"telephone_number": "814-375-4089",
"fax_number": "814-375-4067",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "21911 Route 119",
"address_purpose": "LOCATION",
"city": "Punxsutawney",
"state": "PA",
"postal_code": "157677922",
"country_code": "US",
"telephone_number": "814-375-4089",
"fax_number": "814-375-4067",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "OUSMAN",
"first_name": "YASSER",
"middle_name": "HADJ",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2006-05-10",
"last_updated": "2025-08-05",
"certification_date": "2025-08-05",
"status": "A"
},
"taxonomies": [
{
"code": "207RE0101X",
"taxonomy_group": "",
"desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
"state": "DC",
"license": "MD31598",
"primary": false
},
{
"code": "207RE0101X",
"taxonomy_group": "",
"desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
"state": "PA",
"license": "MD478729",
"primary": false
},
{
"code": "207RE0101X",
"taxonomy_group": "",
"desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
"state": "VA",
"license": "0101058348",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "025800300",
"state": "DC"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "697102400",
"state": "MD"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "5863368",
"state": "VA"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "104059528",
"state": "PA"
}
],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "yousman166714@soc.inova.org",
"affiliation": "Y",
"endpointDescription": "Health Information Exchange",
"affiliationName": "Inova Health Care Services",
"use": "HIE",
"useDescription": "Health Information Exchange (HIE)",
"contentType": "OTHER",
"contentTypeDescription": "Other",
"contentOtherDescription": "CCDA",
"address_1": "3300 Gallows Rd",
"city": "Falls Church",
"state": "VA",
"country_code": "US",
"postal_code": "220423300",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Fairfax, VA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 5, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.