NPPES file of Aug 9, 2026

Leah Camille Anderson Olson, PA-C

Physician Assistant · Chicago, IL

Leah Camille Anderson Olson, PA-C is a physician assistant with a practice address in Chicago, Illinois, and NPI 1386953172, issued on Sep 28, 2010. Check the license (Illinois 085004253, 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
1386953172
Name
Leah Camille Anderson Olson
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
085004253 IL
Self-reported in NPPES; status is on the state search
Practice location
251 E Huron St Ste 16-738, Chicago, IL 60611
Phone
(312) 926-5924
Enumerated
Sep 28, 2010
Record last updated
Sep 19, 2023
Fax
(312) 926-6134
Medicare enrollment
Enrolled (PECOS I20130326000010); accepts Medicare assignment
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 251 E Huron St Ste 16-738

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

  1. Kazuko Abe, P.A.Physician Assistant1881840783
  2. Frank Aguilar, M.D.Hospitalist Physician1659802270
  3. Ali Ahmed, MDHospitalist Physician1154841286
  4. Bilal Al-Khalil, MDHospitalist Physician1255825220
  5. Juan Alban, MDHematology & Oncology Physician1114489192
  6. Mohammed AllawHospitalist Physician1558883058

Verify Leah Camille Anderson Olson 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 085004253
    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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85% fewer Medicare Part D claims than the average physician assistant in 2024

125 Medicare Part D claims for 56 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 11 claims were for opioids.

  1. Leah Olson125
  2. Specialty average830

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

  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).

Leah Camille Anderson Olson among 4,926 physician assistant records in Illinois

Leah Camille Anderson Olson, PA-C 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 2010, is newer than 22% of them.

  • NPI issued2010 · 22% of these records are older, 76% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2010 · median 2019 among the 3,407 with a school on file
  • Record last updated2023 · 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. Regina Bart, PAChicago, IL 606111083656284
  2. Michele Bryk, PAChicago, IL 606111316906860
  3. Jennifer Centore-Lober, PA CChicago, IL 606111932198322
  4. Karen Ferkau, P.A.Chicago, IL 606111013082809
  5. Jung Lee, PAChicago, IL 606111588698476
  6. Michael Maclean, PA-CChicago, IL 606111033139399
  7. Vera Nisavic, P.A.Chicago, IL 606111174696207
  8. Laura Nishi, PAChicago, IL 606111821040049

Common questions

What is Leah Camille Anderson Olson, PA-C's NPI number?

Leah Camille Anderson Olson, PA-C's National Provider Identifier (NPI) is 1386953172, issued on Sep 28, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Leah Camille Anderson Olson, PA-C located?

The NPPES record lists a practice address at 251 E Huron St Ste 16-738, Chicago, IL, 60611. Phone: (312) 926-5924. Providers update this record themselves, so call before visiting.

How can I verify Leah Camille Anderson Olson, PA-C's license?

NPPES lists Illinois license number 085004253, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Leah Camille Anderson Olson, PA-C prescribe under Medicare Part D?

In 2024, Leah Camille Anderson Olson, PA-C had 125 Medicare Part D claims for 56 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.