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2026 NPPES data Obstetrics & Gynecology Physician NPI 1235237918 MD
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Thomas Arnold, MD

Obstetrics & Gynecology Physician in Dickinson, North Dakota.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 45,074 in Obstetrics & Gynecology 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
35
Medicare Part D claims · 17 beneficiaries · Obstetrics & Gynecology Physician avg: 188
MIPS score
73.9/100
▼ 10 pts below national avg 83.5 · Mid-tier
Industry payments
$47.13
2 payments · CMS Open Payments (Sunshine Act)
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Thomas Arnold, MD reported a CMS MIPS final score of 73.9/100 - below the 83.5 national average - and filed 35 Medicare Part D claims in 2024.

73.9/100
MIPS score · -10 vs avg
35
Part D claims, 2024
Likely
board-certified (heuristic)
≥11th
pct among measured MIPS (lower-bound band)

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 Thomas Arnold, MD

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 1235237918), first enumerated 09/20/2006.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 35 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 73.9/100 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

  • Reported

    Industry payment transparency

    $47.13 in reported industry payments (2 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.

    Source: CMS Open Payments

  • 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 1235237918 · Obstetrics & Gynecology Physician

NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-BELOW · RX-TRACE · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1235237918
  • ENUM-LEGACY 2006
  • TAX-MID 45K Obstetrics &
  • MIPS-BELOW 73.9/100
  • RX-TRACE 35
  • BOOK-THIN 87 in North Dakota
  • PHOTO-FINISH Rebecca Crowe · ±0.1

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

Thomas Arnold, MD'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.

74 ≥ 11th percentile 11% 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%). This entry sits in this band. 80–90: 129,887 measured providers (29%). Above this entry. 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 Thomas Arnold, MD sits

This provider among obstetrics & gynecology physician peers

Across the 7,360 obstetrics & gynecology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Thomas Arnold, MD writes more Part D claims than 16% of them and scores higher on MIPS quality than 9% - placing this provider in the lower-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: 100 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 67Thomas Arnold, MD, Part D claim volume, percentile in specialty: 16 · MIPS quality, percentile: 9
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one obstetrics & gynecology physician peer from a representative sample of 60; the gold marker is Thomas Arnold, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Thomas Arnold, 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 Thomas Arnold, MD?

Below national average

NPI registry status

Active

Issued 09/20/2006

NPI 1235237918

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

45,074 US NPIs in this specialty

Medicare Part D claims

35 81% vs specialty avg

2024 prescription claims

Specialty avg: 188

MIPS final score

73.9/100 9.6 pts vs avg

Mid-tier band

vs 83.5 national avg

Specialty distribution in North Dakota

How Obstetrics & Gynecology Physician compares to other specialties among North Dakota providers

North Dakota providers
Personal Care Attendant8.1%Case Manager/Care Coordinator6.4%Physical Therapist4.6%Speech-Language Pathologist4.5%Registered Nurse4.1%Social Worker3.9%Obstetrics & Gynecology Phys…0.4%
Largest specialties in North Dakota (% of in-state providers)

Medicare quality performance, MIPS

Thomas Arnold, MD's 2023 MIPS final score plotted against the Obstetrics & Gynecology Physician national average

Below national average
MIPS Final Score
73.9/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%73.9%
MIPS final score (Obstetrics & Gynecology Physician) - 73.9/100 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

938 2ND AVE W
Dickinson, ND 58601
(701) 456-6000

Provider Details

NPI 1235237918
Specialty Obstetrics & Gynecology Physician
Credentials MD
Gender Male
NPI Issued 09/20/2006

CMS Quality Score (MIPS)

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

73.8703
Final Score
Measured-score avg: 83.5
55.0531
Quality
95.3036
Cost

Reporting: Group practice

Industry payments received (2024) - CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Thomas Arnold, MD. Source: openpaymentsdata.cms.gov.

Total received

$47

Largest payer

Sage Therapeutics, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

35
Total Claims
$838
Total Drug Cost
17
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
40.733
Total Day Supply
851
Brand Drug Cost
$0
Generic Drug Cost
$838
Antibiotic Claims
14

Patient Demographics

Average Patient Age
72.8 years
Avg HCC Risk Score
0.73
Gender Split
100% female / 0% male
More Obstetrics & Gynecology Physician in ND → All providers in North Dakota → Compare specialties →

Obstetrics & Gynecology Physician Overview

How Thomas Arnold, MD fits within the Obstetrics & Gynecology Physician landscape nationally.

45,074
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
188
Avg Claims per Provider

Thomas Arnold, MD's 35 claims are below the specialty average of 188.

Nationwide Obstetrics & Gynecology Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Arnold, both outside North Dakota so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (73.9 here).

Rebecca Crowe 73.8 SC Vida Strickland 73.8 CA Shazah Khawaja 73.8 CA Kenneth Perske 73.8 HI

Same NPPES enumeration year (2006)

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

Kathleen Graves Springfield, MO Efrain Vazquez Luna Santurce, PR Sukyin Anita Sit San Jose, CA Adili Shay Bedford, NH

Nearby Obstetrics & Gynecology Physician Providers in North Dakota

Other clinicians with the same primary specialty enrolled in North Dakota, drawn from the same CMS NPPES roster as Arnold.

One of 87 Obstetrics & Gynecology Physician providers enrolled in North Dakota, 5 are shown here.

Dr. Joseph Adducci
MD
Williston, ND
Dr. John Amsbury
DO
Minot, ND
Dr. Laura Andreson
D.O.
Grand Forks, ND
Dr. Erica Argall
MD
West Fargo, ND
Dr. John Balintona
MD
Fargo, ND

Compare Obstetrics & Gynecology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Thomas Arnold, MD's specialty? ▼
Thomas Arnold, MD specializes in Obstetrics & Gynecology Physician and practices in Dickinson, North Dakota. Credentials: MD.
How much does Thomas Arnold, MD prescribe under Medicare Part D? ▼
In 2024, Thomas Arnold, MD wrote 35 Medicare Part D claims totaling $838 in drug costs for 17 beneficiaries.
What is Thomas Arnold, MD's Medicare quality score? ▼
Thomas Arnold, MD has a CMS MIPS Final Score of 73.9/100 (Quality: 55.1, Cost: 95.3). 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 Thomas Arnold, MD located? ▼
Thomas Arnold, MD is located at 938 2ND AVE W, Dickinson, ND, 58601. Phone: (701) 456-6000.
What is Thomas Arnold, MD's NPI number? ▼
Thomas Arnold, MD's National Provider Identifier (NPI) is 1235237918, issued on 09/20/2006.
How many Obstetrics & Gynecology Physician providers are there in the US? ▼
There are 45,074 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 188 Medicare Part D claims per year.
Does Thomas Arnold, MD accept Medicare? ▼
Thomas Arnold, MD appears in CMS Medicare data with 35 Part D claims and 17 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Thomas Arnold, MD's credentials? ▼
Thomas Arnold, MD's NPI is 1235237918 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.
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.