2026 NPPES data Emergency Medicine Physician NPI 1598713000 M.D.
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MARGRETHE WESTON, M.D.

Emergency Medicine Physician in PORTSMOUTH, 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
92
Medicare Part D claims · 66 beneficiaries · Emergency Medicine Physician avg: 352
MIPS score
93.3878/100
▲ 10 pts above national avg 83.1 · [object Object]

What the federal data shows

MARGRETHE WESTON, M.D. reported a CMS MIPS final score of 93.3878/100 — above the 83.1 national average — and filed 92 Medicare Part D claims in 2023.

93.3878/100
MIPS score · +10 vs avg
92
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.

MARGRETHE WESTON, M.D.'s MIPS score vs every scored U.S. clinician

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

93 Top 29% higher than 71% 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%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. 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)

MARGRETHE WESTON, M.D. 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 MARGRETHE WESTON, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 05/05/2006

NPI 1598713000

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

92 74% vs specialty avg

2023 prescription claims

Specialty avg: 352

MIPS final score

93.3878/100 10.287800000000004% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Virginia

How Emergency Medicine Physician compares to other specialties among Virginia providers

Virginia providers

Emergency Medicine Physician share within Virginia

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

Medicare quality performance — MIPS

MARGRETHE WESTON, M.D.'s 2023 MIPS final score plotted against the Emergency Medicine Physician national average

High performer (top quartile)
MIPS Final Score
93.3878/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Emergency Medicine Physician) — 93.3878/100 vs national avg 83.1

0%100%National avg83%93.4%
MIPS final score (Emergency Medicine Physician) — 93.3878/100 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).

MARGRETHE WESTON, M.D. appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding M.D. credentials at 620 JOHN PAUL JONES CIR, PORTSMOUTH, VA, 23708, with a listed phone of (757) 953-1407. NPI 1598713000 was issued on 05/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WESTON 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 92 prescription claims written by this provider, covering 66 Medicare beneficiaries and totaling roughly $1K in drug spend. 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 93.3878/100 for the 2023 performance year (Quality 87.1131), compared with the national average of 83.1.

Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 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

620 JOHN PAUL JONES CIR
PORTSMOUTH, VA 23708

Provider Details

NPI 1598713000
Specialty Emergency Medicine Physician
Credentials M.D.
Gender Female
NPI Issued 05/05/2006

CMS Quality Score (MIPS)

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

93.3878
Final Score
Avg: 83.1
87.1131
Quality

Reporting: Group practice

Hospital and facility affiliations

Facilities where MARGRETHE WESTON, 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.

ROBERT PACKER HOSPITAL
★★☆☆☆ 2/5
SAYRE, PA
Acute Care Hospitals
CMS CCN: 390079

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.

92
Total Claims
$1K
Total Drug Cost
66
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
92
Total Day Supply
879
Generic Drug Cost
$1K
Antibiotic Claims
33

Patient Demographics

Average Patient Age
70.2 years
Avg HCC Risk Score
1.38
Gender Split
55% female / 45% male

Emergency Medicine Physician Overview

How MARGRETHE WESTON, M.D. fits within the Emergency Medicine Physician landscape nationally.

64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

MARGRETHE WESTON, M.D.'s 92 claims are below the specialty average of 352.

Nearby Emergency Medicine Physician Providers in Virginia

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

Compare Emergency Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARGRETHE WESTON, M.D.'s specialty?
MARGRETHE WESTON, M.D. specializes in Emergency Medicine Physician and practices in PORTSMOUTH, Virginia. Credentials: M.D..
How much does MARGRETHE WESTON, M.D. prescribe under Medicare Part D?
In 2023, MARGRETHE WESTON, M.D. wrote 92 Medicare Part D claims totaling $1K in drug costs for 66 beneficiaries.
What is MARGRETHE WESTON, M.D.'s Medicare quality score?
MARGRETHE WESTON, M.D. has a CMS MIPS Final Score of 93.3878/100 (Quality: 87.1131). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MARGRETHE WESTON, M.D. located?
MARGRETHE WESTON, M.D. is located at 620 JOHN PAUL JONES CIR, PORTSMOUTH, VA, 23708. Phone: (757) 953-1407.
What is MARGRETHE WESTON, M.D.'s NPI number?
MARGRETHE WESTON, M.D.'s National Provider Identifier (NPI) is 1598713000, issued on 05/05/2006.
How many Emergency Medicine Physician providers are there in the US?
There are 64,398 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
Does MARGRETHE WESTON, M.D. accept Medicare?
MARGRETHE WESTON, M.D. appears in CMS Medicare data with 92 Part D claims and 66 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARGRETHE WESTON, M.D.'s credentials?
MARGRETHE WESTON, M.D.'s NPI is 1598713000 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

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