Elizabeth Pfaff Yost, PA-C
Physician Assistant · Chicago, IL
Elizabeth Pfaff Yost, PA-C is a physician assistant with a practice address in Chicago, Illinois, and NPI 1205495413, issued on Jun 11, 2019. Check the license (Illinois 085012217, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Elizabeth Pfaff Yost
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- 085012217 IL
097465 IA
68321 CA
PA9121659 FL
5954 OK
Self-reported in NPPES; status is on the state search - Practice location
- 125 S Wacker Dr Ste 300, Chicago, IL 60606
- Phone
- (617) 505-1520
- Enumerated
- Jun 11, 2019
- Record last updated
- Jul 28, 2026
- Fax
- (617) 928-8401
- Medicare enrollment
- Enrolled (PECOS I20191104000919); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 125 S Wacker Dr Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Delliah Adesanya, LCSWClinical Social Worker1255824116
- Robert Ander, MDFamily Medicine Physician1588051122
- Lisa Bellanfonte, MDInternal Medicine Physician1275625113
- Bianca CardenasSocial Worker1740155100
- Lauren Daniels, LPCCounselor1336841600
- Peter Georginis, MDInternal Medicine Physician1629426366
Verify Elizabeth Pfaff Yost in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 085012217Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% more Medicare Part D claims than the average physician assistant in 2024
1,642 Medicare Part D claims for 375 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Omeprazole71 claims
- Atorvastatin Calcium69 claims
- Amlodipine Besylate64 claims
- Prednisone62 claims
- Ozempic54 claims
- Alendronate Sodium50 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.
Bills Medicare through one group practice
- The Iowa Clinic PCOttumwa, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (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 1,445 in Chicago → All 4,926 in Illinois → Every provider in Chicago →
Other physician assistant records in Illinois
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- Sana Abbasi, PACarol Stream, IL1831803295
- Susan Abbinanti, PA-CElk Grove Village, IL1679647358
- Katheryn Abbott, PASchaumburg, IL1356842082
- Noor Abdelrahman, PA-CChicago, IL1851012413
- Amer Abdulghafoor, MSW, MS, PA-CChicago, IL1619401718
- Kazuko Abe, P.A.Chicago, IL1881840783
- Greta Abel, PA-CWheaton, IL1174844096
- Derrik AbellAnna, IL1821618471
- Jeanine Aberbook, PA-CChicago, IL1518664176
Common questions
What is Elizabeth Pfaff Yost, PA-C's NPI number?
Elizabeth Pfaff Yost, PA-C's National Provider Identifier (NPI) is 1205495413, issued on Jun 11, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Elizabeth Pfaff Yost, PA-C located?
The NPPES record lists a practice address at 125 S Wacker Dr Ste 300, Chicago, IL, 60606. Phone: (617) 505-1520. Providers update this record themselves, so call before visiting.
How can I verify Elizabeth Pfaff Yost, PA-C's license?
NPPES lists Illinois license number 085012217, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Elizabeth Pfaff Yost, PA-C prescribe under Medicare Part D?
In 2024, Elizabeth Pfaff Yost, PA-C had 1,642 Medicare Part D claims for 375 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.