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2026 NPPES data Family Medicine Physician NPI 1134190150 M.D.
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Stephen Payne, M.D.

Family Medicine Physician in Williamstown, Massachusetts.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 150,125 in Family Medicine 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
8K
Medicare Part D claims · 453 beneficiaries · Family Medicine Physician avg: 4K
Generic prescribing
89%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
86.2/100
▲ 3 pts above national avg 83.5 · Above neutral
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Stephen Payne, M.D. reported a CMS MIPS final score of 86.2/100 - above the 83.5 national average - and filed 7,600 Medicare Part D claims in 2024.

86.2/100
MIPS score · +3 vs avg
8K
Part D claims, 2024
89%
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.

Federal trust snapshot

What official records show about Stephen Payne, M.D.

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1134190150), first enumerated 01/28/2006.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 7,600 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 86.2/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • State context

    State board disciplinary context

    Massachusetts statewide board action statistics are published annually — these figures describe aggregate state activity, not Stephen Payne, M.D.'s individual license status. Verify directly with the state medical board.

    Source: BORIM annual report 2023

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1134190150 · Family Medicine Physician

NPI-10 · ENUM-LEGACY · TAX-MEGA · MIPS-INLINE · RX-MID · BOOK-LIGHT · PHOTO-FINISH

  • NPI-10 1134190150
  • ENUM-LEGACY 2006
  • TAX-MEGA 150K Family Medicine
  • MIPS-INLINE 86.2/100
  • RX-MID 7,600
  • BOOK-LIGHT 2,226 in Massachusetts
  • PHOTO-FINISH Abdel Salam Ahmed · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Stephen Payne, M.D.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

86 ≥ 49th percentile 49% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). This entry sits in this band. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

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

Where Stephen Payne, M.D. sits

This provider among family medicine physician peers

Across the 21,266 family medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Stephen Payne, M.D. writes more Part D claims than 80% of them and scores higher on MIPS quality than 48% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 98Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 98Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 35Stephen Payne, M.D., Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 48
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one family medicine physician peer from a representative sample of 60; the gold marker is Stephen Payne, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Stephen Payne, M.D. 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 Stephen Payne, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 01/28/2006

NPI 1134190150

Primary specialty

Family Medicine Physician

High-volume

150,125 US NPIs in this specialty

Medicare Part D claims

7,600 116% vs specialty avg

2024 prescription claims

Specialty avg: 3,519

MIPS final score

86.2/100 2.7 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in Massachusetts

How Family Medicine Physician compares to other specialties among Massachusetts providers

Massachusetts providers
Mental Health Counselor8.3%Clinical Social Worker7.7%Student in an Organized Heal…6.2%Behavior Technician5.3%Counselor4.3%Internal Medicine Physician3.6%Family Medicine Physician1%
Largest specialties in Massachusetts (% of in-state providers)

Medicare quality performance, MIPS

Stephen Payne, M.D.'s 2023 MIPS final score plotted against the Family Medicine Physician national average

High performer (top quartile)
MIPS Final Score
86.2/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%86.2%
MIPS final score (Family Medicine Physician) - 86.2/100 vs national avg 83.5
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).

Practice Address

227 ADAMS ROAD
Williamstown, MA 01267
(413) 458-0112

Provider Details

NPI 1134190150
Specialty Family Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 01/28/2006

CMS Quality Score (MIPS)

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

86.1632
Final Score
Measured-score avg: 83.5
76.1091
Quality
74.9183
Cost
91
Promoting Interoperability

Reporting: Individual

License & disciplinary context - Massachusetts BORIM 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~38K Massachusetts medical licensees in 2023 - they are NOT specific to Stephen Payne, M.D.. To verify Stephen Payne, M.D.'s current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases

BORIM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

Stephen Payne, M.D. - brand share 10.0%
Family Medicine Physician average

10% brand-name claims vs 89% generic, on 7,600 2024 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 2024.

7,600
Total Claims
$439K
Total Drug Cost
453
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
13,753
Total Day Supply
396,179
Brand vs Generic
10% brand / 89% generic
Brand Drug Cost
$339K
Generic Drug Cost
$96K
Opioid Claims
484 (6.4% rate)
Antibiotic Claims
223

Patient Demographics

Average Patient Age
73.0 years
Avg HCC Risk Score
0.98
Gender Split
47% female / 53% male
Age Distribution
<65: 54, 65-74: 211, 75-84: 146, 85+: 42

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Stephen Payne, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Lisinopril
 301
Omeprazole
 300
Atorvastatin Calcium
 271
Amlodipine Besylate
 243
Lorazepam
 231
Hydrochlorothiazide
 208
Levothyroxine Sodium
 206
Simvastatin
 199
Metoprolol Succinate
 190
Glimepiride
 167

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

More Family Medicine Physician in MA → All providers in Massachusetts → Compare specialties →

Family Medicine Physician Overview

How Stephen Payne, M.D. fits within the Family Medicine Physician landscape nationally.

150,125
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,519
Avg Claims per Provider

Stephen Payne, M.D.'s 7,600 claims are above the specialty average of 3,519.

Nationwide Family Medicine Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Payne, both outside Massachusetts so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (86.2 here).

John Scribner 86.2 AR Abdel Salam Ahmed 86.2 PA Mateo Cindric 86.2 PA April Cindric 86.2 PA

Same NPPES enumeration year (2006)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Frank Sifuentes Houston, TX James Bell Pennington Gap, VA Mark English College Station, TX John Khalifa Exton, PA

Nearby Family Medicine Physician Providers in Massachusetts

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

One of 2,226 Family Medicine Physician providers enrolled in Massachusetts, 5 are shown here.

Dr. Salah Abass
M.D.
Methuen, MA
Dr. Sheila Abdallah
MD
Worcester, MA
Dr. Jonathan Abel
DO
Springfield, MA
Dr. Mohamed Abib
MD
Sturbridge, MA
Dr. Kevin Abraham
M.D.
Worcester, MA

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

Frequently Asked Questions

What is Stephen Payne, M.D.'s specialty? ▼
Stephen Payne, M.D. specializes in Family Medicine Physician and practices in Williamstown, Massachusetts. Credentials: M.D..
How much does Stephen Payne, M.D. prescribe under Medicare Part D? ▼
In 2024, Stephen Payne, M.D. wrote 7,600 Medicare Part D claims totaling $439K in drug costs for 453 beneficiaries.
What is Stephen Payne, M.D.'s Medicare quality score? ▼
Stephen Payne, M.D. has a CMS MIPS Final Score of 86.2/100 (Quality: 76.1, Cost: 74.9). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Stephen Payne, M.D. located? ▼
Stephen Payne, M.D. is located at 227 ADAMS ROAD, Williamstown, MA, 01267. Phone: (413) 458-0112.
What is Stephen Payne, M.D.'s NPI number? ▼
Stephen Payne, M.D.'s National Provider Identifier (NPI) is 1134190150, issued on 01/28/2006.
Does Stephen Payne, M.D. prescribe more brand-name or generic drugs? ▼
Stephen Payne, M.D.'s prescribing is 10% brand-name and 89% generic drugs by claim count, with $339K in brand drug costs.
Does Stephen Payne, M.D. prescribe opioids? ▼
Yes, Stephen Payne, M.D. had 484 opioid claims in 2024 with an opioid prescribing rate of 6.4%.
How many Family Medicine Physician providers are there in the US? ▼
There are 150,125 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,519 Medicare Part D claims per year.
What drugs does Stephen Payne, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Stephen Payne, M.D.'s most frequently prescribed drugs include Lisinopril, Omeprazole, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Stephen Payne, M.D. accept Medicare? ▼
Stephen Payne, M.D. appears in CMS Medicare data with 7,600 Part D claims and 453 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Stephen Payne, M.D.'s credentials? ▼
Stephen Payne, M.D.'s NPI is 1134190150 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 (2024). 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 August 2026 (NPPES) / 2024 (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 editorial process.

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 August 2026.