Mark Ettore Giacomi, D.O
Family Medicine Physician · Plainfield, IL
Mark Ettore Giacomi, D.O is a family medicine physician with a practice address in Plainfield, Illinois, and NPI 1639334667, issued on Jul 18, 2008. Check the license (Illinois 036126516, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mark Ettore Giacomi
- Credential
- D.O
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036126516 IL
Self-reported in NPPES; status is on the state search - Practice location
- 23836 W 135TH St, Plainfield, IL 60544
- Phone
- (815) 254-2403
- Enumerated
- Jul 18, 2008
- Record last updated
- Mar 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (815) 267-8380
- Medicare enrollment
- Enrolled (PECOS I20110816000039); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Verify Mark Ettore Giacomi 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 036126516Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average family medicine physician in 2024
1,683 Medicare Part D claims for 134 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 68 claims were for opioids.
Most prescribed
- Atorvastatin Calcium125 claims
- Amlodipine Besylate85 claims
- Levothyroxine Sodium78 claims
- Metformin Hcl58 claims
- Pantoprazole Sodium57 claims
- Losartan Potassium48 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.
Bills Medicare through one group practice
- Adventist Health Partners, Inc.Plainfield, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Ettore Giacomi among 6,215 family medicine physician records in Illinois
Mark Ettore Giacomi, D.O 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 2008, is newer than 50% of them.
- NPI issued2008 · 50% of these records are older, 46% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2008 · median 2006 among the 3,714 with a school on file
- Record last updated2021 · 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).
25 family medicine physician records list a practice address in Plainfield
They are 25 of the 1,198 NPPES records with a practice address in Plainfield, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Plainfield → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Gregory Adams, DOPlainfield, IL 605441174730659
- Bruce Corwin, MDPlainfield, IL 605441588713374
- Devang Patel, D.O.Plainfield, IL 605441467600809
- Teresa Pecherek-Rogers, MDPlainfield, IL 605441114039831
- Mohin Samaraweera, MDPlainfield, IL 605441295896173
- Farah Turk, MDPlainfield, IL 605441366453839
- Joanna Wilk, MDPlanfield, IL 605441669553863
- Huma Alam, M.D.Plano, IL 605451639362544
Common questions
What is Mark Ettore Giacomi, D.O's NPI number?
Mark Ettore Giacomi, D.O's National Provider Identifier (NPI) is 1639334667, issued on Jul 18, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Mark Ettore Giacomi, D.O located?
The NPPES record lists a practice address at 23836 W 135TH St, Plainfield, IL, 60544. Phone: (815) 254-2403. Providers update this record themselves, so call before visiting.
How can I verify Mark Ettore Giacomi, D.O's license?
NPPES lists Illinois license number 036126516, 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 Mark Ettore Giacomi, D.O prescribe under Medicare Part D?
In 2024, Mark Ettore Giacomi, D.O had 1,683 Medicare Part D claims for 134 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.