Dr. Sean Michael Wrenn, MD

  • Chicago, IL
  • Surgical oncologist
NPI1831431261PAC ID2365745684
Medicare services, 2024
398
Medicare patients, 2024
178
Part D claims, 2024
115
Publications
29
Hospital affiliations
2
Practice address
1653 West Congress Parkway, Chicago, IL 60612
Practice phone
Call (312) 942-5000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Rush University Medical Center

Hospital · Chicago, Illinois

See all 4 affiliations

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Dr. Sean Michael Wrenn is a surgical oncologist in Chicago, Illinois

Dr. Wrenn practices at Rush University Medical Center in Chicago, Illinois, part of Rush System for Health.

Dr. Wrenn's NPI, 1831431261, was assigned on March 24, 2013. Dr. Wrenn graduated from Rush Medical College in 2013. Dr. Wrenn holds Illinois license 036-153599.

NPI and contact details
Medicare PAC ID
2365745684
NPI enumeration date
March 24, 2013
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(312) 942-5000
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
39
Medical school graduation
2013

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Sean Michael Wrenn practices at Rush University Medical Center in Chicago, Illinois

Dr. Wrenn's primary practice is Rush University Medical Center, at 1653 West Congress Parkway, Chicago, IL 60612 in Cook County. The practice phone is (312) 942-5000.

Source: Dmand AI Affiliation Data

Dr. Sean Michael Wrenn is affiliated with 3 sites of care and 1 medical group

Dr. Wrenn's primary practice is Rush University Medical Center in Chicago, Illinois, part of Rush System for Health. Dr. Wrenn is also affiliated with Rush Oak Park Hospital. The medical group on file is Rush University Internists. Dmand AI also links Dr. Wrenn to 1 more group practice or clinic, named with a free account.

See all 4 affiliations for Dr. Wrenn

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Sean Michael Wrenn's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wrenn practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Rush University Medical CenterAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Sean Michael Wrenn is one of 56 surgical oncologists in Illinois

Surgical oncology is Dr. Wrenn's primary specialty in the NPI Registry, under taxonomy code 2086X0206X. Dr. Wrenn is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Wrenn's licenses on file in 4 states: Illinois, Massachusetts, Maine and Vermont.

Specialties and state licenses

  • Surgical oncology, IllinoisPrimaryLicense 036.153599 · 2020 to 2026 · taxonomy 2086X0206X
  • Surgery, MassachusettsLicense 278947 · 2019 to 2022 · taxonomy 208600000X
  • Maine license2020 to 2021
  • Vermont license2013 to 2019

Clinical focus

Dmand AI lists thyroid surgery among the conditions Dr. Wrenn treats.

Surgical oncologists near Dr. Wrenn

Counts of surgical oncologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Sean Michael Wrenn billed Medicare for 398 services in 2024

CMS data shows 398 Medicare services from Dr. Wrenn across 12 procedure codes in 2024, for 178 Medicare patients. Medicare paid $55,083 for them.

Medicare services, 2024398
Medicare patients178
Paid by Medicare$55,083
Procedure codes12

Dr. Wrenn's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1612024: 20225%
Surgery
2023: 712024: 11258%
Imaging
2023: 822024: 7212%
Other services
2023: 132024: 128%

Where Dr. Wrenn's Medicare services took place, 2024

  • In an office12531%
  • In a facility27369%

Dr. Wrenn compared with the Illinois median for surgical oncologists, 2024

  • Dr. Wrenn
  • Illinois median
Medicare services
398vs 20594% above
Medicare patients
178vs 10668% above
Part D claims
70vs 252.8 times

Medians across 50 surgical oncologists in Illinois with Dmand AI profiles that report each measure.

Dr. Wrenn's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Wrenn

Need commercial claims for Dr. Wrenn?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Wrenn and other surgical oncologists in Illinois.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Sean Michael Wrenn treated 178 Medicare patients in 2024, average age 71

CMS counts 178 Medicare patients who saw Dr. Wrenn in 2024. The largest group is 65 to 74, with 83 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 27% are also on Medicaid. Their average risk score is 1.87, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Wrenn's median patient age at 67, with 79% women.

Medicare patients, 2024178
Average age71
Average risk score1.87
Also on Medicaid27%

Dr. Wrenn's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Wrenn's Medicare patients by sex, 2024

  • Women12972%
  • Men4928%

Chronic conditions among Dr. Wrenn's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis46%
  4. Ischemic heart disease35%
  5. Chronic kidney disease33%
  6. Diabetes33%
  7. Osteoporosis32%
  8. Heart failure22%

Share of Medicare patients with each condition. A patient can have several.

Dr. Wrenn's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 67

Patient panel by sex, all payers

  • Women79%
  • Men21%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Sean Michael Wrenn wrote 115 Medicare Part D claims in 2024

In 2024, Dr. Wrenn wrote 115 Medicare Part D claims for 50 patients. 86% of them were for generic drugs. CMS names the drug for 70 of them, across 2 drugs with 11 or more claims each, at $623 in total drug cost. In 2023, CMS named 49 claims across 1 drug.

Part D claims, 2024115
Drugs named by CMS2
Total drug cost$623
Part D patients50

Dr. Wrenn's Part D claims by kind of drug, 2024

  • Generic99 claims86%
  • Brand-name16 claims14%

Dr. Wrenn's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 492024: 7043%

Drugs named by CMS: 2 in 2024, 1 in 2023.

See all prescribing by Dr. Wrenn

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Sean Michael Wrenn offers telehealth to Medicare patients

Dr. Wrenn accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Wrenn as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Sean Michael Wrenn has 29 publications on record

Dmand AI links 29 papers to Dr. Wrenn, published from 2012 to 2025. 2018 was the busiest year, with 3. The most frequent topics are Thyroid Neoplasms, Adrenal Cortex Neoplasms and Adrenocortical Carcinoma. Dr. Wrenn has published most often in JAMA Otolaryngol Head Neck Surg. Dr. Wrenn's most frequent co-authors are Trishul Kapoor, MD, Antoine Eskander, MD and Rajshri Mainthia Gartland, MD.

Papers29
Years published2012 to 2025

Dr. Wrenn's papers by year, 2012 to 2025

Topics Dr. Wrenn writes about most

  • Thyroid Neoplasms
  • Adrenal Cortex Neoplasms
  • Adrenocortical Carcinoma
  • Graft Survival
  • Kidney Transplantation
  • Lung
  • Postoperative Complications
  • Thyroidectomy

Dr. Wrenn's most frequent co-authors

Recent publications by Dr. Wrenn

See all 29 publications and co-authors

See who Dr. Wrenn researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Wrenn works with, so you can find a warm path to the right surgical oncologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Sean Michael Wrenn received $108 in industry payments in 2023

CMS Open Payments shows 2 general payments to Dr. Wrenn from 2 drug and device companies in 2023. Food and beverage make up the largest share, 100% of the total. Exelixis Inc. paid the most, $87.

Companies that paid Dr. Wrenn the most, 2023 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Wrenn

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Sean Michael Wrenn has 5 awards and honors on record

Dmand AI lists 5 awards for Dr. Wrenn, most recently 2nd Place, Podium Presentation in 2017.

Awards and honors for Dr. Wrenn

  1. 2017
    • 2nd Place, Podium Presentation
    • 3rd Place, Podium Presentation
    • Healthcare Hero Award
  2. 2016
    • Poster of Distinction
  3. 2014
    • Resident Teaching Award

Source: Dmand AI Professional Profile Data

Dr. Sean Michael Wrenn graduated from Rush Medical College

Dr. Wrenn graduated from Rush Medical College in 2013. Dr. Wrenn is a member of ACS, ATS, ASTS and SAGES.

  1. Medical schoolRush Medical College
  2. Board certified in surgeryAmerican Board of Surgery

Source: Dmand AI Professional Profile Data

Dr. Sean Michael Wrenn accepts plans from 19 insurance carriers

Dr. Wrenn is in network with 19 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.

Plan types Dr. Wrenn accepts, by number of carriers

  1. PPO12
  2. Medicare10
  3. HMO9
  4. POS7
  5. EPO4
  6. Medicaid2

Source: Dmand AI Insurance Network Data

Sources for Dr. Sean Michael Wrenn's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Sean Michael Wrenn

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Sean Michael Wrenn's NPI number?

Dr. Sean Michael Wrenn's NPI number is 1831431261. It was assigned on March 24, 2013, and it is active in the NPI Registry.

What kind of doctor is Dr. Sean Michael Wrenn?

Dr. Sean Michael Wrenn is a surgical oncologist in Chicago, Illinois. The primary specialty in the NPI Registry is Surgical Oncology Physician (taxonomy code 2086X0206X).

Where does Dr. Sean Michael Wrenn practice?

Dr. Wrenn practices at 1653 West Congress Parkway, Chicago, IL 60612. Dr. Wrenn's primary practice is Rush University Medical Center in Chicago, Illinois, part of Rush System for Health. Dmand AI also links Dr. Wrenn to 1 group practice or clinic.

What is Dr. Sean Michael Wrenn's office phone number?

The practice phone on file for Dr. Wrenn is (312) 942-5000.

What is Dr. Sean Michael Wrenn's medical license number?

Dr. Wrenn holds Illinois license 036-153599, one of the licenses on file in 4 states.

Which states has Dr. Sean Michael Wrenn been licensed in?

Dmand AI has state licenses on file for Dr. Wrenn in Illinois (2020 to 2026), Massachusetts (2019 to 2022), Maine (2020 to 2021) and Vermont (2013 to 2019).

Which hospitals is Dr. Sean Michael Wrenn affiliated with?

Dr. Wrenn practices at Rush University Medical Center in Chicago, Illinois. Dr. Wrenn is also affiliated with Rush Oak Park Hospital.

What medical group is Dr. Sean Michael Wrenn part of?

Dr. Wrenn is linked to Rush University Internists.

Does Dr. Sean Michael Wrenn accept Medicare?

Yes. CMS data shows Dr. Wrenn billed Medicare for 398 services in 2024, and Dr. Wrenn accepts Medicare assignment.

Does Dr. Sean Michael Wrenn offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Wrenn as offering telehealth services.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Sean Michael Wrenn see?

CMS counts 178 Medicare patients who saw Dr. Wrenn in 2024, with an average age of 71.

Is Dr. Sean Michael Wrenn board certified?

Yes. Dr. Wrenn is board certified in surgery by the American Board of Surgery.

What services does Dr. Sean Michael Wrenn bill to Medicare?

In 2024, Dr. Wrenn's most billed Medicare services were office visit, new patient (99204), office visit, established patient (99214) and surgery: skin and soft tissue (10005).

Where did Dr. Sean Michael Wrenn go to medical school?

Dr. Wrenn graduated from Rush Medical College in 2013.

What drugs does Dr. Sean Michael Wrenn prescribe most?

In 2024 Medicare Part D data, Dr. Wrenn's most prescribed drugs by claims were Levothyroxine Sodium and Alprazolam.

Has Dr. Sean Michael Wrenn received payments from drug or device companies?

CMS Open Payments shows $108 in general payments to Dr. Wrenn from 2 companies from 2023 to 2023. The largest total came from Exelixis Inc.

How long has Dr. Sean Michael Wrenn been practicing?

Dr. Wrenn graduated from medical school in 2013, 13 years ago.

Does Dr. Sean Michael Wrenn do research?

Dmand AI links 29 publications to Dr. Wrenn, published from 2012 to 2025.

Who does Dr. Sean Michael Wrenn publish with?

Dr. Wrenn's most frequent co-authors are Trishul Kapoor, MD (3 shared papers), Antoine Eskander, MD (2 shared papers) and Rajshri Mainthia Gartland, MD (2 shared papers).

What insurance does Dr. Sean Michael Wrenn accept?

Dr. Wrenn is in network with 19 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.

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