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2026 NPPES data Internal Medicine Physician NPI 1639599855 M.D.
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Thomas Kupiec, M.D.

Internal Medicine Physician in Edmond, Oklahoma.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,737 in Internal 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
9K
Medicare Part D claims · 567 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
82%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
77.7/100
▼ 6 pts below national avg 83.5 · Above neutral
Industry payments
$1.9K
108 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 Kupiec, M.D. reported a CMS MIPS final score of 77.7/100 - below the 83.5 national average - and filed 8,934 Medicare Part D claims in 2023.

77.7/100
MIPS score · -6 vs avg
9K
Part D claims, 2023
82%
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 Thomas Kupiec, 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 1639599855), first enumerated 04/27/2014.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 8,934 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 77.7/100 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

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • Reported

    Industry payment transparency

    $1.9K in reported industry payments (108 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 1639599855 · Internal Medicine Physician

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

  • NPI-10 1639599855
  • ENUM-MID 2014
  • TAX-MEGA 173K Internal Medicine
  • MIPS-BELOW 77.7/100
  • RX-MID 8,934
  • BOOK-LIGHT 1,313 in Oklahoma
  • PHOTO-FINISH Kusum Ohri · ±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

Thomas Kupiec, 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.

78 ≥ 20th percentile 20% 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 Kupiec, M.D. sits

This provider among internal medicine physician peers

Across the 34,612 internal medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Thomas Kupiec, M.D. writes more Part D claims than 91% of them and scores higher on MIPS quality than 22% - 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: 95 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 35Thomas Kupiec, M.D., Part D claim volume, percentile in specialty: 91 · MIPS quality, percentile: 22
Part D claim volume vs MIPS quality, by specialty percentile

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

✓
Board certification likely (heuristic, not verified)

Thomas Kupiec, 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 Thomas Kupiec, M.D.?

Below national average

NPI registry status

Active

Issued 04/27/2014

NPI 1639599855

Primary specialty

Internal Medicine Physician

High-volume

172,737 US NPIs in this specialty

Medicare Part D claims

8,934 229% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

77.7/100 5.8 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in Oklahoma

How Internal Medicine Physician compares to other specialties among Oklahoma providers

Oklahoma providers
Case Manager/Care Coordinator9.7%Mental Health Counselor7.2%Behavior Technician6.2%Peer Specialist5.5%Counselor5%Student in an Organized Heal…4.2%Internal Medicine Physician1.5%
Largest specialties in Oklahoma (% of in-state providers)

Medicare quality performance, MIPS

Thomas Kupiec, M.D.'s 2023 MIPS final score plotted against the Internal Medicine Physician national average

Below national average
MIPS Final Score
77.7/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%77.7%
MIPS final score (Internal Medicine Physician) - 77.7/100 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

4509 INTEGRIS PKWY STE 200
Edmond, OK 73034
(405) 657-3950

Provider Details

NPI 1639599855
Specialty Internal Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 04/27/2014

CMS Quality Score (MIPS)

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

77.6983
Final Score
Measured-score avg: 83.5
82.5298
Quality
43.1313
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Thomas Kupiec, 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.

Integris Ambulatory Care Corporation
Edmond, OK

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 Kupiec, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$1.9K

Largest payer

ABBVIE 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.

Brand vs generic prescribing mix · Typical

Thomas Kupiec, M.D. - brand share 17.0%
Internal Medicine Physician average

17% brand-name claims vs 82% generic, on 8,934 2023 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 2023.

8,934
Total Claims
$1.3M
Total Drug Cost
567
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
19,484
Total Day Supply
568,649
Brand vs Generic
17% brand / 82% generic
Brand Drug Cost
$1.1M
Generic Drug Cost
$146K
Opioid Claims
166 (1.9% rate)
Antibiotic Claims
152

Patient Demographics

Average Patient Age
73.5 years
Avg HCC Risk Score
1.16
Gender Split
53% female / 47% male
Age Distribution
<65: 43, 65-74: 261, 75-84: 212, 85+: 51

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Thomas Kupiec, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Levothyroxine Sodium
 412
Atorvastatin Calcium
 401
Lisinopril
 289
Amlodipine Besylate
 250
Pantoprazole Sodium
 235
Losartan Potassium
 224
Gabapentin
 220
Rosuvastatin Calcium
 213
Mounjaro
Tirzepatide
211
Trazodone Hcl
 196

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

More Internal Medicine Physician in OK → All providers in Oklahoma → Compare specialties →

Internal Medicine Physician Overview

How Thomas Kupiec, M.D. fits within the Internal Medicine Physician landscape nationally.

172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

Thomas Kupiec, M.D.'s 8,934 claims are above the specialty average of 2,716.

Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year

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

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (77.7 here).

Kusum Ohri 77.7 CA Gulnoza Agzamova 77.7 NJ Shehzana Ashraf 77.7 NJ Harsh Bhavsar 77.7 NJ

Same NPPES enumeration year (2014)

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

Ashkan Zand Pasadena, TX Brandon Yim Honolulu, HI John Barnard Jackson, MS Satya Patel Los Angeles, CA

Nearby Internal Medicine Physician Providers in Oklahoma

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

One of 1,313 Internal Medicine Physician providers enrolled in Oklahoma, 5 are shown here.

Abdelrahman Abdalla
Oklahoma City, OK
Dr. Al-Ola Abdallah
M.D
Tulsa, OK
Dr. Tony Abdo
M.D
Oklahoma City, OK
Dr. David Abernethy
M.D.
Oklahoma City, OK
Dr. Ahmed Abou Elmagd
MD
Fort Sill, OK

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

Frequently Asked Questions

What is Thomas Kupiec, M.D.'s specialty? ▼
Thomas Kupiec, M.D. specializes in Internal Medicine Physician and practices in Edmond, Oklahoma. Credentials: M.D..
How much does Thomas Kupiec, M.D. prescribe under Medicare Part D? ▼
In 2023, Thomas Kupiec, M.D. wrote 8,934 Medicare Part D claims totaling $1.3M in drug costs for 567 beneficiaries.
What is Thomas Kupiec, M.D.'s Medicare quality score? ▼
Thomas Kupiec, M.D. has a CMS MIPS Final Score of 77.7/100 (Quality: 82.5, Cost: 43.1). 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 Kupiec, M.D. located? ▼
Thomas Kupiec, M.D. is located at 4509 INTEGRIS PKWY STE 200, Edmond, OK, 73034. Phone: (405) 657-3950.
What is Thomas Kupiec, M.D.'s NPI number? ▼
Thomas Kupiec, M.D.'s National Provider Identifier (NPI) is 1639599855, issued on 04/27/2014.
Does Thomas Kupiec, M.D. prescribe more brand-name or generic drugs? ▼
Thomas Kupiec, M.D.'s prescribing is 17% brand-name and 82% generic drugs by claim count, with $1.1M in brand drug costs.
Does Thomas Kupiec, M.D. prescribe opioids? ▼
Yes, Thomas Kupiec, M.D. had 166 opioid claims in 2023 with an opioid prescribing rate of 1.9%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Thomas Kupiec, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Thomas Kupiec, M.D.'s most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Thomas Kupiec, M.D. accept Medicare? ▼
Thomas Kupiec, M.D. appears in CMS Medicare data with 8,934 Part D claims and 567 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Thomas Kupiec, M.D.'s credentials? ▼
Thomas Kupiec, M.D.'s NPI is 1639599855 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.
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 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 May 2026.