2026 NPPES data Vascular Surgery Physician NPI 1306822481 MD
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Michael Southworth, MD

Vascular Surgery Physician in Dover, New Hampshire.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,227 in Vascular Surgery 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.
MIPS score
98.1/100
▲ 15 pts above national avg 83.1 · Exceptional
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Michael Southworth, MD reported a CMS MIPS final score of 98.1/100 - above the 83.1 national average.

98.1/100
MIPS score · +15 vs avg
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.

Michael Southworth, MD's MIPS score vs every scored U.S. clinician

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

98 Top 11% higher than 89% 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+: 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)

Michael Southworth, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Michael Southworth, MD?

High performer (top quartile)

NPI registry status

Active

Issued 12/20/2005

NPI 1306822481

Primary specialty

Vascular Surgery Physician

Niche

4,227 US NPIs in this specialty

MIPS final score

98.1/100 15 pts vs avg

Exceptional band

vs 83.1 national avg

Specialty distribution in New Hampshire

How Vascular Surgery Physician compares to other specialties among New Hampshire providers

New Hampshire providers
Mental Health Counselor - 6.6%Mental Health Counselor6.6%Physical Therapist - 5%Physical Therapist5%Clinical Social Worker - 4.4%Clinical Social Worker4.4%Pharmacist - 3.9%Pharmacist3.9%Case Manager/Care Coordinator - 3.8%Case Manager/Care Coordinator3.8%Occupational Therapist - 3.8%Occupational Therapist3.8%Vascular Surgery Physician - 0.1%Vascular Surgery Physician0.1%
Largest specialties in New Hampshire (% of in-state providers)

Medicare quality performance, MIPS

Michael Southworth, MD's 2023 MIPS final score plotted against the Vascular Surgery Physician national average

High performer (top quartile)
MIPS Final Score
98.1/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Vascular Surgery Physician) - 98.1/100 vs national avg 83.1

0%100%National avg83%98.1%
MIPS final score (Vascular Surgery Physician) - 98.1/100 vs national avg 83.1
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).

Michael Southworth, MD appears in the CMS NPPES registry as a Vascular Surgery Physician provider holding MD credentials at 789 CENTRAL AVE, Dover, NH, 03820, with a listed phone of (603) 740-2832. NPI 1306822481 was issued on 12/20/2005.

Medicare Part D prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal, many Vascular Surgery Physician providers operate outside Part D entirely. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 98.1/100 for the 2023 performance year (Quality 86.1), compared with the national average of 83.1.

Vascular Surgery Physician is a narrow specialty nationwide, with 4,227 enrolled providers across 53 states and an average of 205 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

789 CENTRAL AVE
Dover, NH 03820

Provider Details

NPI 1306822481
Specialty Vascular Surgery Physician
Credentials MD
Gender Male
NPI Issued 12/20/2005

CMS Quality Score (MIPS)

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

98.0699
Final Score
Avg: 83.1
86.1398
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Vascular Surgery Physician Overview

How Michael Southworth, MD fits within the Vascular Surgery Physician landscape nationally.

4,227
Vascular Surgery Physician Providers in US
53
States with Vascular Surgery Physician
205
Avg Claims per Provider

Nearby Vascular Surgery Physician Providers in New Hampshire

Other clinicians with the same primary specialty enrolled in New Hampshire, drawn from the same CMS NPPES roster as Southworth.

Compare Vascular Surgery 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 New Hampshire medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Vascular Surgery 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.

Frequently Asked Questions

What is Michael Southworth, MD's specialty?
Michael Southworth, MD specializes in Vascular Surgery Physician and practices in Dover, New Hampshire. Credentials: MD.
What is Michael Southworth, MD's Medicare quality score?
Michael Southworth, MD has a CMS MIPS Final Score of 98.1/100 (Quality: 86.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Michael Southworth, MD located?
Michael Southworth, MD is located at 789 CENTRAL AVE, Dover, NH, 03820. Phone: (603) 740-2832.
What is Michael Southworth, MD's NPI number?
Michael Southworth, MD's National Provider Identifier (NPI) is 1306822481, issued on 12/20/2005.
How many Vascular Surgery Physician providers are there in the US?
There are 4,227 Vascular Surgery Physician providers across 53 states in the US. The average Vascular Surgery Physician provider writes 205 Medicare Part D claims per year.
Does Michael Southworth, MD accept Medicare?
Michael Southworth, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Southworth, MD's credentials?
Michael Southworth, MD's NPI is 1306822481 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

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.
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

Compiled from official public sources by the PlainDoctor editorial team.

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.