Siham Mohieldin Mahgoub, MD
Infectious Disease Physician · Williamsburg, VA
Siham Mohieldin Mahgoub, MD is an infectious disease physician with a practice address in Williamsburg, Virginia, and NPI 1194834754, issued on Aug 29, 2006. Check the license (Virginia 0101239997, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Siham Mohieldin Mahgoub
- Credential
- MD
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License numbers
- 0101239997 VA
2189841 NY
Self-reported in NPPES; status is on the state search - Practice location
- 400 Sentara Cir Ste 201B, Williamsburg, VA 23188
- Phone
- (757) 345-4655
- Enumerated
- Aug 29, 2006
- Record last updated
- Jan 6, 2026
- Fax
- (757) 390-4892
- Medicaid ID
- 02224422 NY
- Medicare enrollment
- Enrolled (PECOS I20191104001453); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 239 in Virginia → Look up another NPI →
Also registered at 400 Sentara Cir Ste 201B
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emma Castillo Bercasio, MDInfectious Disease Physician1083706568
Verify Siham Mohieldin Mahgoub in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101239997Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average infectious disease physician in 2024
148 Medicare Part D claims for 16 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 93% of claims.
Most prescribed
- Biktarvy51 claims
- Triumeq20 claims
- Cabenuva17 claims
- Genvoya11 claims
- Juluca11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 62.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Howard UniversityWashington, DC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Siham Mohieldin Mahgoub among 239 infectious disease physician records in Virginia
Siham Mohieldin Mahgoub, MD is one of 239 infectious disease physician records with a practice address in Virginia. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 56% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1991 · median 2002 among the 145 with a school on file
- Record last updated2026 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in Virginia
There are 239 infectious disease physician records in Virginia.
All 239 in Virginia → Every provider in Williamsburg → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Emma Castillo Bercasio, MDWilliamsburg, VA 231881083706568
- Grayson Miller, M.D.Richmond, VA 232191528036936
- Melissa Viray, MDRichmond, VA 232191982842779
- Vivian Bruzzese, MDRichmond, VA 232241134154677
- Ahad Azeem, MDRichmond, VA 232261184165318
- Benjamin Bluen, M.D.Richmond, VA 232261487093373
- James Brooks, MDRichmond, VA 232291588633168
- David Rowles, MDRichmond, VA 232291205805785
Common questions
What is Siham Mohieldin Mahgoub, MD's NPI number?
Siham Mohieldin Mahgoub, MD's National Provider Identifier (NPI) is 1194834754, issued on Aug 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Siham Mohieldin Mahgoub, MD located?
The NPPES record lists a practice address at 400 Sentara Cir Ste 201B, Williamsburg, VA, 23188. Phone: (757) 345-4655. Providers update this record themselves, so call before visiting.
How can I verify Siham Mohieldin Mahgoub, MD's license?
NPPES lists Virginia license number 0101239997, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Siham Mohieldin Mahgoub, MD prescribe under Medicare Part D?
In 2024, Siham Mohieldin Mahgoub, MD had 148 Medicare Part D claims for 16 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.
What is Siham Mohieldin Mahgoub, MD's MIPS final score?
The 2023 MIPS final score is 62.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.