Kathryn Lyall Halldin, PA
Physician Assistant · Chicago, IL
Kathryn Lyall Halldin, PA is a physician assistant with a practice address in Chicago, Illinois, and NPI 1295411171, issued on Jun 26, 2023. Check the license (Illinois 085-009832, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kathryn Lyall Halldin
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 085-009832 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3000 N Halsted St Ste 625, Chicago, IL 60657
- Phone
- (773) 296-6666
- Enumerated
- Jun 26, 2023
- Record last updated
- Mar 3, 2025
- Fax
- (773) 296-9999
- Medicare enrollment
- Enrolled (PECOS I20231009002829); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,926 in Illinois → Look up another NPI →
Also registered at 3000 N Halsted St Ste 625
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Berger, M.D.Gastroenterology Physician1073950390
Verify Kathryn Lyall Halldin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 085-009832Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Advocate Health And Hospitals CorporationBuffalo Grove, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathryn Lyall Halldin among 4,926 physician assistant records in Illinois
Kathryn Lyall Halldin, PA 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 2023, is newer than 78% of them.
- NPI issued2023 · 78% of these records are older, 17% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2023 · median 2019 among the 3,407 with a school on file
- Record last updated2025 · 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.
All 4,926 in Illinois → Every provider in Chicago → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Valerie Cooper, PA-CChicago, IL 606571881975670
- Anna Duffy, PA-CChicago, IL 606571174832646
- Emily Ellis, PA-CChicago, IL 606571376950816
- Ashley Greenway, PAChicago, IL 606571801172242
- Ling Hua, PA-CChicago, IL 606571710210059
- Kristin Keating, PA-CChicago, IL 606571275816167
- Thinzar KhineChicago, IL 606571144628348
- Sandra Leeson, PA-CChicago, IL 606571013268812
Common questions
What is Kathryn Lyall Halldin, PA's NPI number?
Kathryn Lyall Halldin, PA's National Provider Identifier (NPI) is 1295411171, issued on Jun 26, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Kathryn Lyall Halldin, PA located?
The NPPES record lists a practice address at 3000 N Halsted St Ste 625, Chicago, IL, 60657. Phone: (773) 296-6666. Providers update this record themselves, so call before visiting.
How can I verify Kathryn Lyall Halldin, PA's license?
NPPES lists Illinois license number 085-009832, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity 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.