Michael Demaertelaere, DO
Family Medicine Physician · Mokena, IL
Michael Demaertelaere, DO is a family medicine physician with a practice address in Mokena, Illinois, and NPI 1982779237, issued on Nov 22, 2006. Check the license (Illinois 036105510, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Michael Demaertelaere
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036105510 IL
Self-reported in NPPES; status is on the state search - Practice location
- 21205 Owens RD Ste 3, Mokena, IL 60448
- Phone
- (815) 469-2123
- Enumerated
- Nov 22, 2006
- Entity
- Type 1 · individual
Also registered at 21205 Owens RD Ste 3
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Steven Antonini, MDPediatrics Physician1114004652
- Aileen Donausky, MDPediatrics Physician1356416143
- Orest Horodysky, MDInternal Medicine Physician1689749475
- Jennifer Johnson, NP-CFamily Nurse Practitioner1346792397
- Julie Limon, MDFamily Medicine Physician1770635989
- Theresa Sawyer, FNP-BCNurse Practitioner1376178889
Verify Michael Demaertelaere 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 036105510Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
2.4 times the Medicare Part D claims of the average family medicine physician in 2024
8,569 Medicare Part D claims for 704 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 210 claims were for opioids.
Most prescribed
- Atorvastatin Calcium761 claims
- Levothyroxine Sodium429 claims
- Lisinopril313 claims
- Losartan Potassium279 claims
- Metformin Hcl260 claims
- Pantoprazole Sodium251 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: $1,121.17
60 payments, mostly food and beverage; the largest payer was Salix Pharmaceuticals, a division of Bausch Health US, LLC. The 53,013 providers of this specialty with any payment received $861.30 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.
One hospital or facility affiliation
- Health Service Systems, IncNew Lenox, 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.
18 family medicine physician records list a Mokena practice address
They are 18 of the 523 NPPES records with a Mokena practice address, and 5,925 family medicine physician records in Illinois.
All 18 in Mokena → All 5,925 in Illinois → Every provider in Mokena →
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 Michael Demaertelaere, DO's NPI number?
Michael Demaertelaere, DO's National Provider Identifier (NPI) is 1982779237, issued on Nov 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Demaertelaere, DO located?
The NPPES record lists a practice address at 21205 Owens RD Ste 3, Mokena, IL, 60448. Phone: (815) 469-2123. Providers update this record themselves, so call before visiting.
How can I verify Michael Demaertelaere, DO's license?
NPPES lists Illinois license number 036105510, 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 Michael Demaertelaere, DO prescribe under Medicare Part D?
In 2024, Michael Demaertelaere, DO had 8,569 Medicare Part D claims for 704 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.