Irsk J. Anderson

  • Chicago, IL
  • Internist
NPI1891856621PAC ID7416989942
Medicare services, 2024
905
Medicare patients, 2024
421
Part D claims, 2024
4,330
Publications
22
Clinical trials
1
Practice address
5841 S Maryland Ave, Chicago, IL 60637
Practice phone
Call (773) 702-1530
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

The University of Chicago Medical Center

Chicago, Illinois

See all 7 affiliations

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Irsk J. Anderson is an internist in Chicago, Illinois

Irsk Anderson practices at The University of Chicago Medical Center in Chicago, Illinois.

Irsk Anderson's NPI, 1891856621, was assigned on December 13, 2006. Irsk Anderson graduated from University of Wisconsin-Madison in 2002. Irsk Anderson holds Illinois license 036113916.

NPI and contact details
Medicare PAC ID
7416989942
NPI enumeration date
December 13, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(773) 702-1530
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
50
Medical school graduation
2002

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

Irsk J. Anderson practices at The University of Chicago Medical Center in Chicago, Illinois

Irsk Anderson's primary practice is The University of Chicago Medical Center, at 5841 S Maryland Ave, Chicago, IL 60637 in Cook County. The practice phone is (773) 702-1530.

  • The University of Chicago Medical Center
    5841 S Maryland Ave, Chicago, IL 60637 · Cook CountyPhone(773) 702-1530

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Irsk J. Anderson is affiliated with 5 sites of care and 2 medical groups

Irsk Anderson's primary practice is The University of Chicago Medical Center in Chicago, Illinois. Irsk Anderson is also affiliated with University of Chicago Medical Center. The medical group on file is UChicago Medicine Physicians. Dmand AI also links Irsk Anderson to 2 more hospitals, 1 home health agency and 1 medical group, each named with a free account.

See all 7 affiliations for Irsk Anderson

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Irsk J. Anderson's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Irsk Anderson practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
The University of Chicago Medical CenterAvailable with a free account
+4 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Irsk J. Anderson is one of 5,652 internists in Illinois

Internal medicine is Irsk Anderson's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Irsk Anderson is board certified in internal medicine by the American Board of Internal Medicine. Irsk Anderson is licensed in Illinois.

Specialties and state licenses

  • Internal medicine, IllinoisPrimaryLicense 036113916 · 2005 to 2026 · taxonomy 207R00000X

Clinical focus

Dmand AI lists acute diabetes, adjustment disease, arthritis, asthma, atrial fibrillation and flutter, bursitis, carpal tunnel syndrome and cellulitis among the conditions Irsk Anderson treats.

Internists near Irsk Anderson

Counts of internists 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

Irsk J. Anderson billed Medicare for 905 services in 2024

CMS data shows 905 Medicare services from Irsk Anderson across 8 procedure codes in 2024, for 421 Medicare patients. Medicare paid $52,733 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024905
Medicare patients421
Paid by Medicare$52,733
Procedure codes8

Irsk Anderson's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 6472024: 6431%
Other services
2023: 02024: 236
Surgery
2023: 292024: 2610%

Irsk Anderson compared with the Illinois median for internists, 2024

  • Irsk Anderson
  • Illinois median
Medicare services
905vs 56660% above
Medicare patients
421vs 2082.0 times
Part D claims
3,532vs 28412.4 times

Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.

Irsk Anderson'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 Irsk Anderson

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

Irsk J. Anderson treated 421 Medicare patients in 2024, average age 72

CMS counts 421 Medicare patients who saw Irsk Anderson in 2024. The largest group is 65 to 74, with 156 patients. 75% of them have high blood pressure, and 68% have high cholesterol. 49% are also on Medicaid. Their average risk score is 2.13, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Irsk Anderson's median patient age at 70, with 56% women.

Medicare patients, 2024421
Average age72
Average risk score2.13
Also on Medicaid49%

Irsk Anderson's Medicare patients by age, 2024

Irsk Anderson's Medicare patients by sex, 2024

  • Women26563%
  • Men15637%

Chronic conditions among Irsk Anderson's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol68%
  3. Arthritis59%
  4. Diabetes46%
  5. Chronic kidney disease39%
  6. Heart failure31%
  7. Ischemic heart disease30%
  8. Mood disorders24%

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

Irsk Anderson's patients across all payers

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

Patient panel by age, all payers

Median age 70

Patient panel by sex, all payers

  • Women56%
  • Men43%

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

Irsk J. Anderson wrote 4,330 Medicare Part D claims in 2024

In 2024, Irsk Anderson wrote 4,330 Medicare Part D claims for 312 patients. 85% of them were for generic drugs. CMS names the drug for 3,532 of them, across 89 drugs with 11 or more claims each, at $344,745 in total drug cost. In 2023, CMS named 3,037 claims across 82 drugs.

Part D claims, 20244,330
Drugs named by CMS89
Total drug cost$344,745
Part D patients312

Irsk Anderson's Part D claims by kind of drug, 2024

  • Generic3,699 claims85%
  • Brand-name596 claims14%
  • Other35 claims1%

Irsk Anderson'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.

Drug classes CMS tracks in Irsk Anderson's Part D claims, 2024

  • Opioids6%268 of 4,330 claims
  • Antibiotics2%66 of 4,330 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 3,0372024: 3,53216%

Drugs named by CMS: 89 in 2024, 82 in 2023.

See all prescribing by Irsk Anderson

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

Irsk J. Anderson offers telehealth to Medicare patients

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

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Irsk J. Anderson has 22 publications on record

Dmand AI links 22 papers to Irsk Anderson, published from 2015 to 2025. 2020 was the busiest year, with 3. The most frequent topics are Students, Medical, Anticoagulants and Clinical Competence. Irsk Anderson has published most often in JAMA. Irsk Anderson's most frequent co-authors are Vineet Arora, Valerie G. Press and Jeanne M. Farnan.

Papers22
Years published2015 to 2025

Irsk Anderson's papers by year, 2015 to 2025

Topics Irsk Anderson writes about most

  • Students, Medical
  • Anticoagulants
  • Clinical Competence
  • Curriculum
  • Internal Medicine
  • Internship and Residency
  • Administration, Oral
  • Education, Medical, Undergraduate

Irsk Anderson's most frequent co-authors

Recent publications by Irsk Anderson

See all 22 publications and co-authors

See who Irsk Anderson researches with

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

How network discovery works

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

Irsk J. Anderson has worked on 1 clinical trial

Dmand AI links Irsk Anderson to 1 clinical trial.

Recent clinical trials with Irsk Anderson

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Irsk J. Anderson received $22 in industry payments in 2024

CMS Open Payments shows 1 general payment to Irsk Anderson from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $22.

Companies that paid Irsk Anderson the most, 2024 to 2024

Share is of all general payments to this clinician.

See all payments to Irsk Anderson

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

Irsk J. Anderson has 1 award and honors on record

Dmand AI lists 1 award for Irsk Anderson, most recently CMS Stage 1 EHR in 2013.

Awards and honors for Irsk Anderson

  1. 2013
    • CMS Stage 1 EHR

Source: Dmand AI Professional Profile Data

Irsk J. Anderson graduated from University of Wisconsin-Madison

Irsk Anderson graduated from University of Wisconsin-Madison in 2002. Irsk Anderson is a member of AAIM and SGIM.

  1. Medical schoolUniversity of Wisconsin-Madison
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Irsk J. Anderson accepts plans from 10 insurance carriers

Irsk Anderson is in network with 10 carriers, including Aetna, Elevance and HCSC. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • HCSC
  • United Healthcare
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • Blue Cross and Blue Shield of Kansas City
  • Blue Cross Blue Shield of Michigan
  • +2 more carriersWith a free account

Plan types Irsk Anderson accepts, by number of carriers

  1. Medicare7
  2. PPO6
  3. HMO5
  4. POS4
  5. EPO3

Source: Dmand AI Insurance Network Data

Sources for Irsk J. Anderson'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
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 Irsk J. Anderson

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

What is Irsk J. Anderson's NPI number?

Irsk J. Anderson's NPI number is 1891856621. It was assigned on December 13, 2006, and it is active in the NPI Registry.

What does Irsk J. Anderson specialize in?

Irsk J. Anderson is an internist in Chicago, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Irsk J. Anderson practice?

Irsk Anderson practices at 5841 S Maryland Ave, Chicago, IL 60637. Irsk Anderson's primary practice is The University of Chicago Medical Center in Chicago, Illinois. Dmand AI also links Irsk Anderson to 2 hospitals, 1 home health agency and 1 medical group.

What is Irsk J. Anderson's office phone number?

The practice phone on file for Irsk Anderson is (773) 702-1530.

What is Irsk J. Anderson's medical license number?

Irsk Anderson holds Illinois license 036113916.

Which hospitals is Irsk J. Anderson affiliated with?

Irsk Anderson is affiliated with University of Chicago Medical Center. Dmand AI links Irsk Anderson to 2 more hospitals.

What medical group is Irsk J. Anderson part of?

Irsk Anderson is linked to UChicago Medicine Physicians. Dmand AI links Irsk Anderson to 1 more medical group.

Does Irsk J. Anderson accept Medicare?

Yes. CMS data shows Irsk Anderson billed Medicare for 905 services in 2024, and Irsk Anderson accepts Medicare assignment.

Does Irsk J. Anderson offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Irsk Anderson as offering telehealth services.

How many Medicare patients does Irsk J. Anderson see?

CMS counts 421 Medicare patients who saw Irsk Anderson in 2024, with an average age of 72.

Show 9 more questionsShow fewer questions

Is Irsk J. Anderson board certified?

Yes. Irsk Anderson is board certified in internal medicine by the American Board of Internal Medicine.

What services does Irsk J. Anderson bill to Medicare?

In 2024, Irsk Anderson's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and office visit, established patient (99213).

Where did Irsk J. Anderson go to medical school?

Irsk Anderson graduated from University of Wisconsin-Madison in 2002.

What drugs does Irsk J. Anderson prescribe most?

In 2024 Medicare Part D data, Irsk Anderson's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Losartan Potassium.

Has Irsk J. Anderson received payments from drug or device companies?

CMS Open Payments shows $22 in general payments to Irsk Anderson from 1 company from 2024 to 2024. The largest total came from Bristol-Myers Squibb Company.

How long has Irsk J. Anderson been practicing?

Irsk Anderson graduated from medical school in 2002, 24 years ago.

Does Irsk J. Anderson do research?

Dmand AI links 22 publications to Irsk Anderson, published from 2015 to 2025. Irsk Anderson has worked on 1 clinical trial.

Who does Irsk J. Anderson publish with?

Irsk Anderson's most frequent co-authors are Vineet Arora (5 shared papers), Valerie G. Press (3 shared papers) and Jeanne M. Farnan (2 shared papers).

What insurance does Irsk J. Anderson accept?

Irsk Anderson is in network with 10 carriers, including Aetna, Elevance and HCSC. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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