NPI registry status
Active
2026 NPPES data Infectious Disease Physician NPI 1306861091 MD
Verify on CMS → Susan Cohn, MD
Infectious Disease Physician in Chicago, 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 8,292 in Infectious Disease 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
143
Medicare Part D claims · 23 beneficiaries · Infectious Disease Physician avg: 816
Generic prescribing
61%
generic claims · 39% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
94.1/100
▲ 11 pts above national avg 83.1 · Exceptional
Industry payments
$5.2K
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Susan Cohn, MD reported a CMS MIPS final score of 94.1/100 - above the 83.1 national average - and filed 143 Medicare Part D claims in 2023.
- 94.1/100
- MIPS score · +11 vs avg
- 143
- Part D claims, 2023
- 61%
- 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.
Susan Cohn, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
94 Top 25% higher than 75% of 477,587 scored providers
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
Where Susan Cohn, MD sits
This provider among infectious disease physician peers
Across the 2,276 infectious disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, Susan Cohn, MD writes more Part D claims than 24% of them and scores higher on MIPS quality than 74% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one infectious disease physician peer from a representative sample of 60; the gold marker is Susan Cohn, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Susan Cohn, 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 Susan Cohn, MD?
High performer (top quartile)Primary specialty
Infectious Disease Physician
Medicare Part D claims
143 82% vs specialty avg
MIPS final score
94.1/100 11 pts vs avg
Specialty distribution in Illinois
How Infectious Disease Physician compares to other specialties among Illinois providers
Medicare quality performance, MIPS
Susan Cohn, MD's 2023 MIPS final score plotted against the Infectious Disease Physician national average
- MIPS Final Score
- 94.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Infectious Disease Physician) - 94.1/100 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).
Susan Cohn, MD appears in the CMS NPPES registry as a Infectious Disease Physician provider holding MD credentials at 645 N MICHIGAN AVE, Chicago, IL, 60611, with a listed phone of (312) 926-3693. NPI 1306861091 was issued on 07/13/2006.
Medicare Part D records for calendar year 2023 show 143 prescription claims written by this provider, covering 23 Medicare beneficiaries and totaling roughly $258K in drug spend, split 39% brand-name and 61% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 94.1/100 for the 2023 performance year (Quality 82.6), compared with the national average of 83.1.
Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 enrolled providers across 54 states and an average of 816 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
Provider Details
| NPI | 1306861091 |
|---|---|
| Specialty | Infectious Disease Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 07/13/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
94.1036
Final Score
Avg: 83.1
82.5938
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
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 Susan Cohn, MD. Source: openpaymentsdata.cms.gov.
Total received
$5.2K
Largest payer
ViiV Healthcare Company
Most common payment type
Consulting Fee
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.
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 Susan Cohn, MD. To verify Susan Cohn, 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.
Brand vs generic prescribing mix · Above average
Susan Cohn, MD - brand share 39.0%
Infectious Disease Physician average
39% brand-name claims vs 61% generic, on 143 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.
143
Total Claims
$258K
Total Drug Cost
23
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 182
- Total Day Supply
- 4,639
- Brand vs Generic
- 39% brand / 61% generic
- Brand Drug Cost
- $234K
- Generic Drug Cost
- $24K
- Antibiotic Claims
- 51
Patient Demographics
- Average Patient Age
- 66.2 years
- Avg HCC Risk Score
- 1.46
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Biktarvy Bictegrav/Emtricit/Tenofov Ala | 50 |
| Ertapenem Ertapenem Sodium | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Infectious Disease Physician Overview
How Susan Cohn, MD fits within the Infectious Disease Physician landscape nationally.
8,292
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider
Susan Cohn, MD's 143 claims are below the specialty average of 816.
Nearby Infectious Disease Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Cohn.
Dr. Olufemi Aboyeji
MD
Homewood, IL
Dr. Chad Achenbach
MD
Chicago, IL
Dr. Tinuola Adeyanju
M.D.
Chicago, IL
Dr. Oluwadamilola Adeyemi
MD
Chicago, IL
Dr. Emily Adochio-Clancy
MD
Chicago, IL
Compare Infectious Disease 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 Illinois medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Infectious Disease 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.
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Frequently Asked Questions
What is Susan Cohn, MD's specialty? ▼
Susan Cohn, MD specializes in Infectious Disease Physician and practices in Chicago, Illinois. Credentials: MD.
How much does Susan Cohn, MD prescribe under Medicare Part D? ▼
In 2023, Susan Cohn, MD wrote 143 Medicare Part D claims totaling $258K in drug costs for 23 beneficiaries.
What is Susan Cohn, MD's Medicare quality score? ▼
Susan Cohn, MD has a CMS MIPS Final Score of 94.1/100 (Quality: 82.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Susan Cohn, MD located? ▼
Susan Cohn, MD is located at 645 N MICHIGAN AVE, Chicago, IL, 60611. Phone: (312) 926-3693.
What is Susan Cohn, MD's NPI number? ▼
Susan Cohn, MD's National Provider Identifier (NPI) is 1306861091, issued on 07/13/2006.
Does Susan Cohn, MD prescribe more brand-name or generic drugs? ▼
Susan Cohn, MD's prescribing is 39% brand-name and 61% generic drugs by claim count, with $234K in brand drug costs.
How many Infectious Disease Physician providers are there in the US? ▼
There are 8,292 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does Susan Cohn, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Susan Cohn, MD's most frequently prescribed drugs include Biktarvy, Ertapenem. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Susan Cohn, MD accept Medicare? ▼
Susan Cohn, MD appears in CMS Medicare data with 143 Part D claims and 23 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Susan Cohn, MD's credentials? ▼
Susan Cohn, MD's NPI is 1306861091 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 (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 PlainDoctor editorial team.