Gregory R. Olson, M.D.
Infectious Disease Physician · Palos Heights, IL
Gregory R. Olson, M.D. is an infectious disease physician with a practice address in Palos Heights, Illinois, and NPI 1326428103, issued on Jun 5, 2015. Check the license (Illinois 036.146290, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Gregory R. Olson
- Credential
- M.D.
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License numbers
- 036.146290 IL
264177 MA
Self-reported in NPPES; status is on the state search - Practice location
- 7804 W College Dr Ste 1NW, Palos Heights, IL 60463
- Phone
- (708) 361-5778
- Enumerated
- Jun 5, 2015
- Record last updated
- Dec 23, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200507000263); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2015
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 464 in Illinois → Look up another NPI →
Also registered at 7804 W College Dr Ste 1NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ankur Dave, D.OInfectious Disease Physician1225327919
Verify Gregory R. Olson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036.146290Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% fewer Medicare Part D claims than the average infectious disease physician in 2024
275 Medicare Part D claims for 127 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin-Clavulanate Potass38 claims
- Ciprofloxacin Hcl31 claims
- Cefdinir27 claims
- Cephalexin27 claims
- Doxycycline Hyclate27 claims
- Fluconazole22 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $34.99
1 payment: education; the largest payer was Astellas Pharma US Inc. The 3,895 providers of this specialty with any payment received $4,362.19 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.
Bills Medicare through one group practice
- Southwest Infectious Disease And Internal Medicine S CPalos Heights, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory R. Olson among 464 infectious disease physician records in Illinois
Gregory R. Olson, M.D. is one of 464 infectious disease physician records with a practice address in Illinois. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 78% of them.
- NPI issued2015 · 78% of these records are older, 20% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2015 · median 2004 among the 311 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in Illinois
There are 464 infectious disease physician records in Illinois.
All 464 in Illinois → Every provider in Palos Heights → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- John Andreoni, MDPalos Heights, IL 604631225024508
- Godofredo Carandang, MDPalos Heights, IL 604631346235934
- Ankur Dave, D.OPalos Heights, IL 604631225327919
- Kiran Dhillon, M.D.Palos Heights, IL 604631053383125
- Dana MuellerPalos Heights, IL 604631770140915
- Bhagavatula Ramakrishna, MDPalos Heights, IL 604631629063243
- Kathleen Ruggero, DOPalos Heights, IL 604631861487464
- Muhammad Tabriz, M.D.Palos Heights, IL 604631174534564
Common questions
What is Gregory R. Olson, M.D.'s NPI number?
Gregory R. Olson, M.D.'s National Provider Identifier (NPI) is 1326428103, issued on Jun 5, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Gregory R. Olson, M.D. located?
The NPPES record lists a practice address at 7804 W College Dr Ste 1NW, Palos Heights, IL, 60463. Phone: (708) 361-5778. Providers update this record themselves, so call before visiting.
How can I verify Gregory R. Olson, M.D.'s license?
NPPES lists Illinois license number 036.146290, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory R. Olson, M.D. prescribe under Medicare Part D?
In 2024, Gregory R. Olson, M.D. had 275 Medicare Part D claims for 127 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.
What is Gregory R. Olson, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.