NPI registry status
Active
2026 NPPES data Hospitalist Physician NPI 1851681316 M.D.
Verify on CMS → Gwendolyn Williams, M.D.
Hospitalist Physician in Hampton, Virginia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,938 in Hospitalist Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
308
Medicare Part D claims · 113 beneficiaries · Hospitalist Physician avg: 888
What the federal data shows
Gwendolyn Williams, M.D. filed 308 Medicare Part D claims in 2023 as a Hospitalist Physician in Hampton, Virginia.
- 308
- Part D claims, 2023
- 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.
Gwendolyn Williams, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
308 Top 43% higher than 57% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Gwendolyn Williams, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - 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 Gwendolyn Williams, M.D.?
Quality data not reportedPrimary specialty
Hospitalist Physician
Medicare Part D claims
308 65% vs specialty avg
Specialty distribution in Virginia
How Hospitalist Physician compares to other specialties among Virginia providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Hospitalist Physician. Verify directly:
How MIPS and board certification work
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).
Gwendolyn Williams, M.D. appears in the CMS NPPES registry as a Hospitalist Physician provider holding M.D. credentials at 4000 COLISEUM DR STE 445, Hampton, VA, 23666, with a listed phone of (757) 827-2127. NPI 1851681316 was issued on 04/18/2011.
Medicare Part D records for calendar year 2023 show 308 prescription claims written by this provider, covering 113 Medicare beneficiaries and totaling roughly $16K in drug spend, with an opioid prescribing rate of 5.2%.
Hospitalist Physician is a mid-sized specialty nationwide, with 16,938 enrolled providers across 54 states and an average of 888 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
Provider Details
| NPI | 1851681316 |
|---|---|
| Specialty | Hospitalist Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 04/18/2011 |
Hospital and facility affiliations
Facilities where Gwendolyn Williams, M.D. 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.
Emergency Medicine Associates P.A., P.C.
Charlottesville, VA
Mcv Associated Physicians
Richmond, VA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
308
Total Claims
$16K
Total Drug Cost
113
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 317
- Total Day Supply
- 7,263
- Generic Drug Cost
- $5K
- Opioid Claims
- 16 (5.2% rate)
- Antibiotic Claims
- 41
Patient Demographics
- Average Patient Age
- 71.6 years
- Avg HCC Risk Score
- 2.68
- Gender Split
- 57% female / 43% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Gwendolyn Williams, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Furosemide
Furosemide
27 claims
- Amlodipine Besylate
Amlodipine Besylate
20 claims
- Atorvastatin Calcium
Atorvastatin Calcium
19 claims
- Carvedilol
Carvedilol
18 claims
- Prednisone
Prednisone
16 claims
| Drug | Claims |
|---|---|
| Furosemide | 27 |
| Amlodipine Besylate | 20 |
| Atorvastatin Calcium | 19 |
| Carvedilol | 18 |
| Prednisone | 16 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Hospitalist Physician Overview
How Gwendolyn Williams, M.D. fits within the Hospitalist Physician landscape nationally.
16,938
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider
Gwendolyn Williams, M.D.'s 308 claims are below the specialty average of 888.
Nearby Hospitalist Physician Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Williams.
Dr. Ramy Abdelfattah
M.D.
Fredericksburg, VA
Dr. Abdallah Abdelrazeq
M.D
Charlottesville, VA
Dr. Mohammed Abdulghani
MD
Tappahannock, VA
Dr. Mohammad Abolhassani
M.D.
Norfolk, VA
Dr. Christopher Achilli
MD
Richmond, VA
Compare Hospitalist Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Virginia medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Hospitalist Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Gwendolyn Williams, M.D.'s specialty? ▼
Gwendolyn Williams, M.D. specializes in Hospitalist Physician and practices in Hampton, Virginia. Credentials: M.D..
How much does Gwendolyn Williams, M.D. prescribe under Medicare Part D? ▼
In 2023, Gwendolyn Williams, M.D. wrote 308 Medicare Part D claims totaling $16K in drug costs for 113 beneficiaries.
Where is Gwendolyn Williams, M.D. located? ▼
Gwendolyn Williams, M.D. is located at 4000 COLISEUM DR STE 445, Hampton, VA, 23666. Phone: (757) 827-2127.
What is Gwendolyn Williams, M.D.'s NPI number? ▼
Gwendolyn Williams, M.D.'s National Provider Identifier (NPI) is 1851681316, issued on 04/18/2011.
Does Gwendolyn Williams, M.D. prescribe opioids? ▼
Yes, Gwendolyn Williams, M.D. had 16 opioid claims in 2023 with an opioid prescribing rate of 5.2%.
How many Hospitalist Physician providers are there in the US? ▼
There are 16,938 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does Gwendolyn Williams, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Gwendolyn Williams, M.D.'s most frequently prescribed drugs include Furosemide, Amlodipine Besylate, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Gwendolyn Williams, M.D. accept Medicare? ▼
Gwendolyn Williams, M.D. appears in CMS Medicare data with 308 Part D claims and 113 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Gwendolyn Williams, M.D.'s credentials? ▼
Gwendolyn Williams, M.D.'s NPI is 1851681316 with credentials M.D.. 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
View source datasets and methodology notes
- 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.
- 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.