NPPES file of Aug 9, 2026

Carol Halasan, MD

Infectious Disease Physician · Chicago, IL

Carol Halasan, MD is an infectious disease physician with a practice address in Chicago, Illinois, and NPI 1881149078, issued on Aug 17, 2016. Check the license (Illinois 036.155619, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1881149078
Name
Carol Halasan
Credential
MD
Primary taxonomy
Infectious Disease Physician 207RI0200X
License numbers
036.155619 IL
72480 CT
Self-reported in NPPES; status is on the state search
Practice location
326 W 64TH St, Chicago, IL 60621
Phone
(773) 692-6400
Enumerated
Aug 17, 2016
Record last updated
Oct 12, 2022
Medicare enrollment
Enrolled (PECOS I20221103000636); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 326 W 64TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Gilberto Arevalo, MDEmergency Medicine Physician1982828729
  2. Jennifer Atomah, PHARMDPharmacist1497560031
  3. Sarah BuckleyRegistered Dietitian1023837846
  4. Carmesha Carrington, FNP-CFamily Nurse Practitioner1023563533
  5. Edgardo Correa, MDEmergency Medicine Physician1831113158
  6. George Dengler, DOEmergency Medicine Physician1194749416

Verify Carol Halasan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036.155619
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

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56% fewer Medicare Part D claims than the average infectious disease physician in 2024

302 Medicare Part D claims for 71 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Carol Halasan302
  2. Specialty average689

Most prescribed

  1. Ceftriaxone40 claims
  2. Cefazolin Sodium19 claims
  3. Amoxicillin17 claims
  4. Amoxicillin-Clavulanate Potass16 claims
  5. Azithromycin16 claims
  6. Amikacin Sulfate14 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 92.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score84.2
  2. Costout of 100 · 30%65.2
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

2 hospitals and group practices

  1. Midstate Medical CenterMeriden, CT · Acute Care Hospitals4 of 5 stars
  2. The Hospital OF Central Connecticut AT New Britain General And BradleyNew Britain, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Carol Halasan among 464 infectious disease physician records in Illinois

Carol Halasan, MD is one of 464 infectious disease physician records with a practice address in Illinois. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 80% of them.

  • NPI issued2016 · 80% of these records are older, 17% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2013 · median 2004 among the 311 with a school on file
  • Record last updated2022 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in Illinois

There are 464 infectious disease physician records in Illinois.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Vanessa Sarda, M.D.Chicago, IL 606221790960078
  2. Carlos Zambrano, MDChicago, IL 606221639139272
  3. Alfredo Mena Lora, M.D.Chicago, IL 606231639307283
  4. Nipun Atri, M.D.Chicago, IL 606181134417553
  5. Wahab Brobbey, MDChicago, IL 606181104812528
  6. Vishnu Chundi, MDChicago, IL 606181558357905
  7. David Hines, MDChicago, IL 606181851387955
  8. Elise Hyser, DOChicago, IL 606181700327905

Common questions

What is Carol Halasan, MD's NPI number?

Carol Halasan, MD's National Provider Identifier (NPI) is 1881149078, issued on Aug 17, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Carol Halasan, MD located?

The NPPES record lists a practice address at 326 W 64TH St, Chicago, IL, 60621. Phone: (773) 692-6400. Providers update this record themselves, so call before visiting.

How can I verify Carol Halasan, MD's license?

NPPES lists Illinois license number 036.155619, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Carol Halasan, MD prescribe under Medicare Part D?

In 2024, Carol Halasan, MD had 302 Medicare Part D claims for 71 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.

What is Carol Halasan, MD's MIPS final score?

The 2023 MIPS final score is 92.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.