Ryan Thomas Cook, DO
Family Medicine Physician · Chicago, IL
Ryan Thomas Cook, DO is a family medicine physician with a practice address in Chicago, Illinois, and NPI 1962068965, issued on May 15, 2019. Check the license (Illinois 036162133, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Ryan Thomas Cook
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036162133 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2845 N Sheridan RD Ste 801, Chicago, IL 60657
- Phone
- (773) 665-6851
- Enumerated
- May 15, 2019
- Record last updated
- Sep 29, 2022
- Medicare enrollment
- Enrolled (PECOS I20220920002088); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 2845 N Sheridan RD Ste 801
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ryan Thomas Cook 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 036162133Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% fewer Medicare Part D claims than the average family medicine physician in 2024
3,491 Medicare Part D claims for 351 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 21 claims were for opioids.
Most prescribed
- Atorvastatin Calcium328 claims
- Amlodipine Besylate163 claims
- Losartan Potassium123 claims
- Levothyroxine Sodium106 claims
- Ozempic96 claims
- Lisinopril81 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: $267.28
7 payments; by number, the most common kind was food and beverage; the largest payer was ViiV Healthcare Company. The 55,478 providers of this specialty with any payment received $902.55 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
- Presence Healthcare ServicesChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan Thomas Cook among 6,215 family medicine physician records in Illinois
Ryan Thomas Cook, DO is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 78% of them.
- NPI issued2019 · 78% of these records are older, 19% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2019 · median 2006 among the 3,714 with a school on file
- Record last updated2022 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,593 family medicine physician records list a practice address in Chicago
They are 1,593 of the 63,379 NPPES records with a practice address in Chicago, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Chicago → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Syed Akhter, MDChicago, IL 606571295787422
- Robert Bowser, M.D.Chicago, IL 606571003864489
- Sara Braunstein, D.O.Chicago, IL 606571861551954
- Eduardo Correa, M.D.Chicago, IL 606571487668653
- Teresa Cvengros, M.D.Chicago, IL 606571558366591
- Marco Delacruz, M.D.Chicago, IL 606571528110228
- Lulu Husain, M.DChicago, IL 606571043319130
- Rajesh Iyengar, MDChicago, IL 606571821023714
Common questions
What is Ryan Thomas Cook, DO's NPI number?
Ryan Thomas Cook, DO's National Provider Identifier (NPI) is 1962068965, issued on May 15, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Thomas Cook, DO located?
The NPPES record lists a practice address at 2845 N Sheridan RD Ste 801, Chicago, IL, 60657. Phone: (773) 665-6851. Providers update this record themselves, so call before visiting.
How can I verify Ryan Thomas Cook, DO's license?
NPPES lists Illinois license number 036162133, 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 Ryan Thomas Cook, DO prescribe under Medicare Part D?
In 2024, Ryan Thomas Cook, DO had 3,491 Medicare Part D claims for 351 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.