NPPES file of Aug 9, 2026

Katy Yaser Hassan, PA-C

Medical Physician Assistant · Chicago, IL

Katy Yaser Hassan, PA-C is a medical physician assistant with a practice address in Chicago, Illinois, and NPI 1194050500, issued on Oct 3, 2009. Check the license (Illinois 085-003610, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1194050500
Name
Katy Yaser Hassan
Credential
PA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
085-003610 IL
Self-reported in NPPES; status is on the state search
Practice location
676 N Saint Clair St Ste 1200, Chicago, IL 60611
Phone
(312) 695-8182
Enumerated
Oct 3, 2009
Record last updated
Apr 7, 2026
Fax
(312) 695-4303
Medicare enrollment
Enrolled (PECOS I20100204000122); 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 676 N Saint Clair St Ste 1200

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

  1. James Burns, MDOtolaryngology Physician1396735320
  2. Abel David, MDOtolaryngology Physician1740784925
  3. Reena Dhanda-Patil, M.D.Sleep Medicine (Otolaryngology) Physician1952496754
  4. Erin Hoke, PA-CPhysician Assistant1740560507
  5. Kristina Hollkamp, PA-CPhysician Assistant1134870686
  6. Christine Huang, PA-CPhysician Assistant1073399093

Verify Katy Yaser Hassan 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 085-003610
    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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94% fewer Medicare Part D claims than the average medical physician assistant in 2024

72 Medicare Part D claims for 46 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.

  1. Katy Hassan72
  2. Specialty average1,148

Most prescribed

  1. Omeprazole14 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).

Bills Medicare through one group practice

  1. Northwestern Medical Faculty FoundationChicago, IL

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

Medical Physician Assistant providers in Illinois

There are 671 medical physician assistant records in Illinois.

Other medical physician assistant records in Illinois

  1. Traci Aaron, PA-CChicago, IL1174510200
  2. Ahmad Abdelghani, PA-CSchaumburg, IL1679351092
  3. Jeneson Abraham, P.A.Chicago, IL1013975218
  4. Rosalva Acosta, PA-CGurnee, IL1972663466
  5. Kenneth Adams, PA-CChillicothe, IL1255351276
  6. Flora Adams-Williams, P.A.-CBloomington, IL1659457547
  7. Timothy AdesanyaHilliboro, IL1467001859
  8. Emmanuel Agomo, PA-CAddison, IL1093760514
  9. Jeffrey Aguilar, PAMorris, IL1871682294
  10. Scott AhlstromKenilworth, IL1538628938

Common questions

What is Katy Yaser Hassan, PA-C's NPI number?

Katy Yaser Hassan, PA-C's National Provider Identifier (NPI) is 1194050500, issued on Oct 3, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Katy Yaser Hassan, PA-C located?

The NPPES record lists a practice address at 676 N Saint Clair St Ste 1200, Chicago, IL, 60611. Phone: (312) 695-8182. Providers update this record themselves, so call before visiting.

How can I verify Katy Yaser Hassan, PA-C's license?

NPPES lists Illinois license number 085-003610, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Katy Yaser Hassan, PA-C prescribe under Medicare Part D?

In 2024, Katy Yaser Hassan, PA-C had 72 Medicare Part D claims for 46 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.

What is Katy Yaser Hassan, PA-C'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.