Katherine Petersen, PA
Physician Assistant · Chicago, IL
Katherine Petersen, PA is a physician assistant with a practice address in Chicago, Illinois, and NPI 1720705957, issued on Oct 27, 2022. Check the license (Illinois 085-009537, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Petersen
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 085-009537 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1 E Erie St Ste 530, Chicago, IL 60611
- Phone
- (773) 677-4300
- Enumerated
- Oct 27, 2022
- Record last updated
- Jul 8, 2025
- Fax
- (773) 423-8429
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,926 in Illinois → Look up another NPI →
Verify Katherine Petersen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 085-009537Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average physician assistant in 2024
428 Medicare Part D claims for 214 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Triamcinolone Acetonide77 claims
- Clobetasol Propionate36 claims
- Ketoconazole30 claims
- Doxycycline Hyclate23 claims
- Betamethasone Dipropionate20 claims
- Nystatin19 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: $459.37
15 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Katherine Petersen among 4,926 physician assistant records in Illinois
Katherine Petersen, 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 2022, is newer than 71% of them.
- NPI issued2022 · 71% of these records are older, 22% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- 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
- Regina Bart, PAChicago, IL 606111083656284
- Michele Bryk, PAChicago, IL 606111316906860
- Jennifer Centore-Lober, PA CChicago, IL 606111932198322
- Karen Ferkau, P.A.Chicago, IL 606111013082809
- Jung Lee, PAChicago, IL 606111588698476
- Michael Maclean, PA-CChicago, IL 606111033139399
- Vera Nisavic, P.A.Chicago, IL 606111174696207
- Laura Nishi, PAChicago, IL 606111821040049
Common questions
What is Katherine Petersen, PA's NPI number?
Katherine Petersen, PA's National Provider Identifier (NPI) is 1720705957, issued on Oct 27, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Petersen, PA located?
The NPPES record lists a practice address at 1 E Erie St Ste 530, Chicago, IL, 60611. Phone: (773) 677-4300. Providers update this record themselves, so call before visiting.
How can I verify Katherine Petersen, PA's license?
NPPES lists Illinois license number 085-009537, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine Petersen, PA prescribe under Medicare Part D?
In 2024, Katherine Petersen, PA had 428 Medicare Part D claims for 214 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.