Doctor profile · Federal record
Dr. Siham Mahgoub, MD
Infectious Disease Physician (CMS: Internal Medicine) · Internal Medicine Physician · Infectious Disease Physician · Williamsburg, VA
- NPI 1194834754
- Accepts Medicare
- 35 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 4 locations .
- Primary practice
-
400 Sentara Cir Ste 201B
Williamsburg, VA 231885716
(757) 345-4655
fax (757) 390-4892 - Additional location
-
1701 14Th St Nw
Washington, DC 200094308
(202) 797-3563 - Additional location
-
2041 Georgia Ave Nw MED Arts 3Rd Floor
Washington, DC 200604308
(202) 865-7513
fax (202) 865-1037 - Additional location
-
502 W Broad St Ste 2
Falls Church, VA 220463206
(571) 421-8431
Show 1 more location
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- January 6, 2026
- Year of graduation
- 1991 — 35 yrs since
- Specialty taxonomy
- 207RI0200X — NUCC code
- State licenses (2)
- Virginia #0101239997 · New York #2189841
- Medicaid
- NY #02224422
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1194834754. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
18
Distinct HCPCS
1
Medicare allowed
$2,615
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 18 | 11 | $145 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 166. This provider delivers 0.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
61
Patients
0
Total drug cost
$253,215
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Biktarvy (Bictegrav/Emtricit/Tenofov Ala) | Brand | 20 | 0 | $84,084 |
| Triumeq (Abacavir/Dolutegravir/Lamivudi) | Brand | 17 | 0 | $63,892 |
| Genvoya (Elviteg/Cob/Emtri/Tenof Alafen) | Brand | 12 | 0 | $48,677 |
| Symtuza (Darunavir/Cob/Emtri/Tenof Alaf) | Brand | 12 | 0 | $56,562 |
Frequently asked questions
What is Dr. Siham Mahgoub's medical specialty?
Dr. Siham Mahgoub practices Infectious Disease Physician in Williamsburg, VA.
Where does Dr. Siham Mahgoub practice?
Dr. Siham Mahgoub practices at 400 Sentara Cir Ste 201B, Williamsburg, VA 231885716. Office phone: 7573454655.
What is Dr. Siham Mahgoub's NPI?
Dr. Siham Mahgoub's National Provider Identifier (NPI) is 1194834754, issued by NPPES.
Does Dr. Siham Mahgoub accept Medicare assignment?
Yes. Dr. Siham Mahgoub accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Siham Mahgoub commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.