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2026 NPPES data Rheumatology Physician NPI 1164487658 MD
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Douglas Cotsamire, MD

Rheumatology Physician in Elmhurst, Illinois.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,377 in Rheumatology 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
100
Medicare Part D claims · 59 beneficiaries · Rheumatology Physician avg: 2K
MIPS score
91.4/100
▲ 8 pts above national avg 83.5 · Exceptional
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Compiled from official public sources by the editorial process.

What the federal data shows

Douglas Cotsamire, MD reported a CMS MIPS final score of 91.4/100 - above the 83.5 national average - and filed 100 Medicare Part D claims in 2024.

91.4/100
MIPS score · +8 vs avg
100
Part D claims, 2024
Likely
board-certified (heuristic)
≥61st
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 Douglas Cotsamire, 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 1164487658), first enumerated 04/19/2006.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 100 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 91.4/100 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

    Illinois statewide board action statistics are published annually — these figures describe aggregate state activity, not Douglas Cotsamire, MD's individual license status. Verify directly with the state medical board.

    Source: IDFPR 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 1164487658 · Rheumatology Physician

NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-ABOVE · RX-LIGHT · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1164487658
  • ENUM-LEGACY 2006
  • TAX-MID 6K Rheumatology Physician
  • MIPS-ABOVE 91.4/100
  • RX-LIGHT 100
  • BOOK-THIN 267 in Illinois
  • PHOTO-FINISH Matthew Axelrod · ±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

Douglas Cotsamire, 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.

91 ≥ 61st percentile 61% 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%). Below this entry. 90+: 189,403 measured providers (42%). This entry sits in this band. 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 Douglas Cotsamire, MD sits

This provider among rheumatology physician peers

Across the 1,970 rheumatology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Douglas Cotsamire, MD writes more Part D claims than 3% of them and scores higher on MIPS quality than 62% - placing this provider in the lower-volume, high-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 quality0255075100024.949.974.899.8Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 67Douglas Cotsamire, MD, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 62
Part D claim volume vs MIPS quality, by specialty percentile

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

✓
Board certification likely (heuristic, not verified)

Douglas Cotsamire, 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 Douglas Cotsamire, MD?

High performer (top quartile)

NPI registry status

Active

Issued 04/19/2006

NPI 1164487658

Primary specialty

Rheumatology Physician

Mid-sized

6,377 US NPIs in this specialty

Medicare Part D claims

100 95% vs specialty avg

2024 prescription claims

Specialty avg: 2,058

MIPS final score

91.4/100 7.9 pts vs avg

Exceptional band

vs 83.5 national avg

Specialty distribution in Illinois

How Rheumatology Physician compares to other specialties among Illinois providers

Illinois providers
Clinical Social Worker5.2%Physical Therapist4.9%Mental Health Counselor4.5%Speech-Language Pathologist4.2%Student in an Organized Heal…4.1%Pharmacist4.1%Rheumatology Physician0.1%
Largest specialties in Illinois (% of in-state providers)

Medicare quality performance, MIPS

Douglas Cotsamire, MD's 2023 MIPS final score plotted against the Rheumatology Physician national average

High performer (top quartile)
MIPS Final Score
91.4/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%91.4%
MIPS final score (Rheumatology Physician) - 91.4/100 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

1200 S YORK ST STE 2000
Elmhurst, IL 60126
(331) 221-9199

Provider Details

NPI 1164487658
Specialty Rheumatology Physician
Credentials MD
Gender Male
NPI Issued 04/19/2006

CMS Quality Score (MIPS)

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

91.3557
Final Score
Measured-score avg: 83.5
82.7114
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

License & disciplinary context - Illinois IDFPR 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 ~42K Illinois medical licensees in 2023 - they are NOT specific to Douglas Cotsamire, MD. To verify Douglas Cotsamire, MD's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR 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 Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

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

100
Total Claims
$9K
Total Drug Cost
59
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
235.667
Total Day Supply
7,020
Generic Drug Cost
$2K

Patient Demographics

Average Patient Age
73.1 years
Avg HCC Risk Score
1.44
Gender Split
66% female / 34% male

Top Prescribed Drugs (Medicare Part D)

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

What Douglas Cotsamire, MD 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
Prednisone
 19
Hydroxychloroquine Sulfate
 18
Gabapentin
 14
Folic Acid
 11

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

More Rheumatology Physician in IL → All providers in Illinois → Compare specialties →

Rheumatology Physician Overview

How Douglas Cotsamire, MD fits within the Rheumatology Physician landscape nationally.

6,377
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,058
Avg Claims per Provider

Douglas Cotsamire, MD's 100 claims are below the specialty average of 2,058.

Nationwide Rheumatology Physician peers with similar MIPS or enrollment year

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

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (91.4 here).

Daniel Sager 91.4 OR Isis Lopez 91.3 TX Matthew Axelrod 91.4 MA Tina Elias-Todd 91.4 MA

Same NPPES enumeration year (2006)

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

Christine Matijasic New York, NY Alina Voinea Little Rock, AR Jeffrey Neal Lexington, KY Francisco Garriga Florissant, MO

Nearby Rheumatology Physician Providers in Illinois

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

One of 267 Rheumatology Physician providers enrolled in Illinois, 5 are shown here.

Dr. Elaine Adams
MD
Maywood, IL
Dr. Emem Adolf-Ubokudom
M.D.
Chicago, IL
Dr. Shri Agrawal
M.D.
Chicago, IL
Dr. Umber Ahmad
DO
McHenry, IL
Saba Ahmed
Chicago, IL

Compare Rheumatology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Douglas Cotsamire, MD's specialty? ▼
Douglas Cotsamire, MD specializes in Rheumatology Physician and practices in Elmhurst, Illinois. Credentials: MD.
How much does Douglas Cotsamire, MD prescribe under Medicare Part D? ▼
In 2024, Douglas Cotsamire, MD wrote 100 Medicare Part D claims totaling $9K in drug costs for 59 beneficiaries.
What is Douglas Cotsamire, MD's Medicare quality score? ▼
Douglas Cotsamire, MD has a CMS MIPS Final Score of 91.4/100 (Quality: 82.7). 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 Douglas Cotsamire, MD located? ▼
Douglas Cotsamire, MD is located at 1200 S YORK ST STE 2000, Elmhurst, IL, 60126. Phone: (331) 221-9199.
What is Douglas Cotsamire, MD's NPI number? ▼
Douglas Cotsamire, MD's National Provider Identifier (NPI) is 1164487658, issued on 04/19/2006.
How many Rheumatology Physician providers are there in the US? ▼
There are 6,377 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,058 Medicare Part D claims per year.
What drugs does Douglas Cotsamire, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Douglas Cotsamire, MD's most frequently prescribed drugs include Prednisone, Hydroxychloroquine Sulfate, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Douglas Cotsamire, MD accept Medicare? ▼
Douglas Cotsamire, MD appears in CMS Medicare data with 100 Part D claims and 59 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Douglas Cotsamire, MD's credentials? ▼
Douglas Cotsamire, MD's NPI is 1164487658 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.