Spencer Kirk, M.D., M.S.
Family Medicine Physician · Downers Grove, IL
Spencer Kirk, M.D., M.S. is a family medicine physician with a practice address in Downers Grove, Illinois, and NPI 1265847941, issued on Jun 22, 2014. Check the license (Illinois 036.143805, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Spencer Kirk
- Credential
- M.D., M.S.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 036.143805 IL
036143805 IL
125.065628 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3551 Highland Ave Ste 200B, Downers Grove, IL 60515
- Phone
- (630) 264-8720
- Enumerated
- Jun 22, 2014
- Entity
- Type 1 · individual
Also registered at 3551 Highland Ave Ste 200B
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alli ChemmachelPhysician Assistant1629695333
- Lawrence KocenPhysician Assistant1275069296
- Nicholas Ramos, M.D.Sports Medicine (Orthopaedic Surgery) Physician1386080802
- Akhil Reddy, MDOrthopaedic Surgery Physician1679076475
Verify Spencer Kirk 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 036.143805Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
98% fewer Medicare Part D claims than the average family medicine physician in 2024
55 Medicare Part D claims for 42 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Meloxicam21 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.
One hospital or facility affiliation
- Advocate Health And Hospitals CorporationWestmont, IL
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Family Medicine Physician providers in Illinois
There are 5,925 family medicine physician records in Illinois.
Other family medicine physician records in Illinois
- Jon Aagaard, MDWheaton, IL1750496923
- Napoleon Abando, MDWoodstock, IL1003972753
- Nikka Abaricia, MDChicago, IL1790366342
- Mohemmed AbbasChicago, IL1609612522
- Muhammad AbbasAlton, IL1588341556
- Syed AbbasWest Dundee, IL1972733103
- Stefanie AbbottMaywood, IL1861137457
- Roann Abdeladl, MDEvanston, IL1437087103
- Ashraf Abdeljaber, M.DNormal, IL1023472636
- Ahmed Abdelkader, MDChicago, IL1659104230
Common questions
What is Spencer Kirk, M.D., M.S.'s NPI number?
Spencer Kirk, M.D., M.S.'s National Provider Identifier (NPI) is 1265847941, issued on Jun 22, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Spencer Kirk, M.D., M.S. located?
The NPPES record lists a practice address at 3551 Highland Ave Ste 200B, Downers Grove, IL, 60515. Phone: (630) 264-8720. Providers update this record themselves, so call before visiting.
How can I verify Spencer Kirk, M.D., M.S.'s license?
NPPES lists Illinois license number 036.143805, 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 Spencer Kirk, M.D., M.S. prescribe under Medicare Part D?
In 2024, Spencer Kirk, M.D., M.S. had 55 Medicare Part D claims for 42 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.