2026 NPPES data Infectious Disease Physician NPI 1194834754 MD
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SIHAM MAHGOUB, MD

Infectious Disease Physician in WILLIAMSBURG, Virginia. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
96
Medicare Part D claims · 18 beneficiaries · Infectious Disease Physician avg: 816
Generic prescribing
21%
generic claims · 79% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
62.1316/100
▼ 21 pts below national avg 83.1 · [object Object]

What the federal data shows

SIHAM MAHGOUB, MD reported a CMS MIPS final score of 62.1316/100 — below the 83.1 national average — and filed 96 Medicare Part D claims in 2023.

62.1316/100
MIPS score · -21 vs avg
96
Part D claims, 2023
21%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

SIHAM MAHGOUB, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

62 6th percentile higher than 6% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). This entry sits in this band. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

SIHAM MAHGOUB, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about SIHAM MAHGOUB, MD?

Below national average

NPI registry status

Active

Issued 08/29/2006

NPI 1194834754

Primary specialty

Infectious Disease Physician

Mid-sized

8,292 US NPIs in this specialty

Medicare Part D claims

96 88% vs specialty avg

2023 prescription claims

Specialty avg: 816

MIPS final score

62.1316/100 20.968399999999995% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in Virginia

How Infectious Disease Physician compares to other specialties among Virginia providers

Virginia providers

Infectious Disease Physician share within Virginia

1. Infectious Disease Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Infectious Disease Physician share within Virginia

Medicare quality performance — MIPS

SIHAM MAHGOUB, MD's 2023 MIPS final score plotted against the Infectious Disease Physician national average

Below national average
MIPS Final Score
62.1316/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Infectious Disease Physician) — 62.1316/100 vs national avg 83.1

0%100%National avg83%62.1%
MIPS final score (Infectious Disease Physician) — 62.1316/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

SIHAM MAHGOUB, MD appears in the CMS NPPES registry as a Infectious Disease Physician provider holding MD credentials at 400 SENTARA CIR STE 201B, WILLIAMSBURG, VA, 23188, with a listed phone of (757) 345-4655. NPI 1194834754 was issued on 08/29/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MAHGOUB most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 96 prescription claims written by this provider, covering 18 Medicare beneficiaries and totaling roughly $306K in drug spend, split 79% brand-name and 21% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 62.1316/100 for the 2023 performance year (Quality 72.4397, Cost 84.6656), compared with the national average of 83.1.

Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 enrolled providers across 54 states and an average of 816 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

400 SENTARA CIR STE 201B
WILLIAMSBURG, VA 23188

Provider Details

NPI 1194834754
Specialty Infectious Disease Physician
Credentials MD
Gender Female
NPI Issued 08/29/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

62.1316
Final Score
Avg: 83.1
72.4397
Quality
84.6656
Cost
0
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where SIHAM MAHGOUB, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

HOWARD UNIVERSITY
WASHINGTON, DC

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Brand-heavy

SIHAM MAHGOUB, MD — brand share 79.0%
Specialty average (est.)

79% brand-name claims vs 21% generic, on 96 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

96
Total Claims
$306K
Total Drug Cost
18
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
106
Total Day Supply
3,039
Brand vs Generic
79% brand / 21% generic
Brand Drug Cost
$306K
Generic Drug Cost
$104

Patient Demographics

Average Patient Age
59.3 years
Avg HCC Risk Score
0.96

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What SIHAM MAHGOUB, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Biktarvy
Bictegrav/Emtricit/Tenofov Ala
20
Triumeq
Abacavir/Dolutegravir/Lamivudi
17
Genvoya
Elviteg/Cob/Emtri/Tenof Alafen
12
Symtuza
Darunavir/Cob/Emtri/Tenof Alaf
12

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Infectious Disease Physician Overview

How SIHAM MAHGOUB, MD fits within the Infectious Disease Physician landscape nationally.

8,292
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider

SIHAM MAHGOUB, MD's 96 claims are below the specialty average of 816.

Nearby Infectious Disease Physician Providers in Virginia

Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as MAHGOUB.

Compare Infectious Disease Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is SIHAM MAHGOUB, MD's specialty?
SIHAM MAHGOUB, MD specializes in Infectious Disease Physician and practices in WILLIAMSBURG, Virginia. Credentials: MD.
How much does SIHAM MAHGOUB, MD prescribe under Medicare Part D?
In 2023, SIHAM MAHGOUB, MD wrote 96 Medicare Part D claims totaling $306K in drug costs for 18 beneficiaries.
What is SIHAM MAHGOUB, MD's Medicare quality score?
SIHAM MAHGOUB, MD has a CMS MIPS Final Score of 62.1316/100 (Quality: 72.4397, Cost: 84.6656). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is SIHAM MAHGOUB, MD located?
SIHAM MAHGOUB, MD is located at 400 SENTARA CIR STE 201B, WILLIAMSBURG, VA, 23188. Phone: (757) 345-4655.
What is SIHAM MAHGOUB, MD's NPI number?
SIHAM MAHGOUB, MD's National Provider Identifier (NPI) is 1194834754, issued on 08/29/2006.
Does SIHAM MAHGOUB, MD prescribe more brand-name or generic drugs?
SIHAM MAHGOUB, MD's prescribing is 79% brand-name and 21% generic drugs by claim count, with $306K in brand drug costs.
How many Infectious Disease Physician providers are there in the US?
There are 8,292 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does SIHAM MAHGOUB, MD prescribe most often?
Based on 2023 Medicare Part D data, SIHAM MAHGOUB, MD's most frequently prescribed drugs include Biktarvy, Triumeq, Genvoya. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SIHAM MAHGOUB, MD accept Medicare?
SIHAM MAHGOUB, MD appears in CMS Medicare data with 96 Part D claims and 18 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SIHAM MAHGOUB, MD's credentials?
SIHAM MAHGOUB, MD's NPI is 1194834754 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology