NPPES file of Aug 9, 2026

Heather Marie Gannon-Stringer, P.A.

Physician Assistant · Chicago, IL

Heather Marie Gannon-Stringer, P.A. is a physician assistant with a practice address in Chicago, Illinois, and NPI 1598989097, issued on Apr 13, 2007. Check the license (Illinois 085-002735, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1598989097
Name
Heather Marie Gannon-Stringer
Credential
P.A.
Primary taxonomy
Physician Assistant 363A00000X
License number
085-002735 IL
Self-reported in NPPES; status is on the state search
Practice location
1725 W Harrison St, Chicago, IL 60612
Phone
(312) 942-6300
Enumerated
Apr 13, 2007
Record last updated
Aug 7, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20070712000146); accepts Medicare assignment
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 1725 W Harrison St

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

  1. Qurrat-Ul-Ain Abid, MDHospice and Palliative Medicine (Internal Medicine) Physician1053949024
  2. John Acheson, MDSurgery Physician1205528726
  3. David Agbunag, PA-CSurgical Physician Assistant1093885188
  4. Eda Akyar, MDSports Medicine (Family Medicine) Physician1255910006
  5. Jorelle Alexander, DMD,MPHDentist1972790756
  6. Amjad Ali, M.D.Specialist1952359184

Verify Heather Marie Gannon-Stringer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 085-002735
    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
Find the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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66% fewer Medicare Part D claims than the average physician assistant in 2024

279 Medicare Part D claims for 87 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 11 claims were for opioids.

  1. Heather Gannon-Stringer279
  2. Specialty average830

Most prescribed

  1. Ondansetron Odt28 claims
  2. Letrozole27 claims
  3. Dexamethasone24 claims
  4. Gabapentin24 claims
  5. Prochlorperazine Maleate21 claims
  6. Nystatin15 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.

Industry payments in 2024: $489.39

20 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Heather Gannon-Stringer$489.39
  2. Specialty average$841.65

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. Affiliated Oncologists LLCChicago Ridge, IL

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

Heather Marie Gannon-Stringer among 4,926 physician assistant records in Illinois

Heather Marie Gannon-Stringer, P.A. is one of 4,926 physician assistant records with a practice address in Illinois. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 12% of them.

  • NPI issued2007 · 12% of these records are older, 83% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2006 · median 2019 among the 3,407 with a school on file
  • Record last updated2015 · 35% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,445 physician assistant records list a practice address in Chicago

They are 1,445 of the 63,379 NPPES records with a practice address in Chicago, and 4,926 physician assistant records in Illinois.

The 8 physician assistant records with the nearest ZIP codes

  1. Stacy Arens, PA-CChicago, IL 606121568485464
  2. Alejandra Argueta, PA-CChicago, IL 606121407980337
  3. Owen BarmadaChicago, IL 606121851301030
  4. Megan Burns, PA-C, PTChicago, IL 606121265574032
  5. Nicole Burrows, PAChicago, IL 606121689612004
  6. Katherine El, PA-CChicago, IL 606121972524791
  7. M Holden, MPH,MMS, PA-CChicago, IL 606121245259639
  8. Ratna Kanumury, PA-CChicago, IL 606121396757050

Common questions

What is Heather Marie Gannon-Stringer, P.A.'s NPI number?

Heather Marie Gannon-Stringer, P.A.'s National Provider Identifier (NPI) is 1598989097, issued on Apr 13, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Heather Marie Gannon-Stringer, P.A. located?

The NPPES record lists a practice address at 1725 W Harrison St, Chicago, IL, 60612. Phone: (312) 942-6300. Providers update this record themselves, so call before visiting.

How can I verify Heather Marie Gannon-Stringer, P.A.'s license?

NPPES lists Illinois license number 085-002735, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Heather Marie Gannon-Stringer, P.A. prescribe under Medicare Part D?

In 2024, Heather Marie Gannon-Stringer, P.A. had 279 Medicare Part D claims for 87 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

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.