NPPES file of Aug 9, 2026

Mary Mulcahy, MD

Medical Oncology Physician · Chicago, IL

Mary Mulcahy, MD is a medical oncology physician with a practice address in Chicago, Illinois, and NPI 1306870837, issued on Jul 10, 2006. Check the license (Illinois 036096205, 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
1306870837
Name
Mary Mulcahy
Credential
MD
Primary taxonomy
Medical Oncology Physician 207RX0202X
License number
036096205 IL
Self-reported in NPPES; status is on the state search
Practice location
675 N Saint Clair St, Chicago, IL 60611
Phone
(312) 695-0990
Enumerated
Jul 10, 2006
Record last updated
Jul 17, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(312) 695-1106
Medicare enrollment
Enrolled (PECOS I20090605000023); accepts Medicare assignment
Medical or professional school
Un Of California, Irvine, College Of Medicine, 1993
Telehealth
Offers telehealth (CMS)
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 675 N Saint Clair St

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

  1. Abdul Aadam, M.D.Gastroenterology Physician1013038744
  2. Ronald Ackermann, MDInternal Medicine Physician1629029210
  3. Kehinde Adekola, MDHematology & Oncology Physician1306026117
  4. Sonya Agnew, M.D.Plastic Surgery Physician1962640250
  5. Mohammed Alghoul, M.D.Plastic Surgery Physician1932376746
  6. Sharon Allen, APRNAdult Health Nurse Practitioner1003849993

Verify Mary Mulcahy 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 036096205
    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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42% fewer Medicare Part D claims than the average medical oncology physician in 2024

408 Medicare Part D claims for 93 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. 35 claims were for opioids.

  1. Mary Mulcahy408
  2. Specialty average703

Most prescribed

  1. Prochlorperazine Maleate41 claims
  2. Eliquis39 claims
  3. Creon32 claims
  4. Ondansetron Odt31 claims
  5. Ondansetron Hcl21 claims
  6. Hydrocodone-Acetaminophen16 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 MIPS final score for 2023 (Medicare payment program): 94.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score82.6
  2. Costnot scored (reweighted)
  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; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $52.90

2 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mary Mulcahy$53
  2. Specialty average$11,773

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Northwestern Medical Faculty FoundationLake Forest, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Medical Oncology Physician providers in Illinois

There are 182 medical oncology physician records in Illinois.

Other medical oncology physician records in Illinois

  1. Ahmad Abu-HashyehMoline, IL1326525114
  2. Matthew Adess, MDHighland Park, IL1629166442
  3. Misbahuddin Ahmed, MDLombard, IL1922117811
  4. Syed Ahmed, MDOak Brook, IL1689867541
  5. Eugene Ahn, M.D.Chicago, IL1093911307
  6. Mebea Aklilu, MDChicago, IL1376527739
  7. Alhareth Alsayed, M.DSterling, IL1447601059
  8. Manik Amin, MDChicago, IL1265689889
  9. Saad Arain, M.D.Evanston, IL1104212992
  10. Mohammad Atiq, M.D.Chicago, IL1851719967

Common questions

What is Mary Mulcahy, MD's NPI number?

Mary Mulcahy, MD's National Provider Identifier (NPI) is 1306870837, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mary Mulcahy, MD located?

The NPPES record lists a practice address at 675 N Saint Clair St, Chicago, IL, 60611. Phone: (312) 695-0990. Providers update this record themselves, so call before visiting.

How can I verify Mary Mulcahy, MD's license?

NPPES lists Illinois license number 036096205, 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 Mary Mulcahy, MD prescribe under Medicare Part D?

In 2024, Mary Mulcahy, MD had 408 Medicare Part D claims for 93 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.

What is Mary Mulcahy, MD's MIPS final score?

The 2023 MIPS final score is 94.1 of 100. 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.