Jason H. Paek, DO
Internal Medicine Physician · Evanston, IL
Jason H. Paek, DO is an internal medicine physician with a practice address in Evanston, Illinois, and NPI 1437848959, issued on May 1, 2023. Check the license (Illinois 125081578, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Jason H. Paek
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 125081578 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2650 Ridge Ave Ste 1304, Evanston, IL 60201
- Phone
- (847) 570-2700
- Enumerated
- May 1, 2023
- Record last updated
- Jun 15, 2023
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 2650 Ridge Ave Ste 1304
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jason H. Paek 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 125081578Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
40 Medicare Part D claims for 17 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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: $51.89
2 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Jason H. Paek among 7,238 internal medicine physician records in Illinois
Jason H. Paek, DO is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% 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 82% of them.
- NPI issued2023 · 82% of these records are older, 13% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2023 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
178 internal medicine physician records list a practice address in Evanston
They are 178 of the 4,013 NPPES records with a practice address in Evanston, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Evanston → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Gary Davis, M.D.Evanston, IL 602011588605745
- Bruce Doblin, MDEvanston, IL 602011417903212
- Steven Fox, MDEvanston, IL 602011821032210
- Richard Gayes, M.D.Evanston, IL 602011942233242
- Jeffrey Geohas, M.D.Evanston, IL 602011609846351
- Mahalakshmi Halasyamani, M.D.Evanston, IL 602011760441679
- Liza Icayan, M.D.Evanston, IL 602011316922529
- Shrimant Mishra, MDEvanston, IL 602011376551150
Common questions
What is Jason H. Paek, DO's NPI number?
Jason H. Paek, DO's National Provider Identifier (NPI) is 1437848959, issued on May 1, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Jason H. Paek, DO located?
The NPPES record lists a practice address at 2650 Ridge Ave Ste 1304, Evanston, IL, 60201. Phone: (847) 570-2700. Providers update this record themselves, so call before visiting.
How can I verify Jason H. Paek, DO's license?
NPPES lists Illinois license number 125081578, 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 Jason H. Paek, DO prescribe under Medicare Part D?
In 2024, Jason H. Paek, DO had 40 Medicare Part D claims for 17 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.