Nicholas Grieco
Internal Medicine Physician · Peoria, IL
Nicholas Grieco is an internal medicine physician with a practice address in Peoria, Illinois, and NPI 1649657685, issued on Apr 29, 2015. Check the license (Illinois 036.146071, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Nicholas Grieco
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036.146071 IL
Self-reported in NPPES; status is on the state search - Practice location
- 221 NE Glen Oak Ave, Peoria, IL 61636
- Phone
- (309) 672-5729
- Enumerated
- Apr 29, 2015
- Record last updated
- Jun 20, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (309) 672-5772
- Medicare enrollment
- Enrolled (PECOS I20180816000479); accepts Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 2015
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 221 NE Glen Oak Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Aamina Ahmed, APNFamily Nurse Practitioner1992422943
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- Rizwan Amin, MDPsychiatry Physician1205445558
- Tracy Anderson, MS, RD, LDNRegistered Dietitian1639393556
- Andrew Armstrong, M.D.Anatomic Pathology & Clinical Pathology Physician1033373311
Verify Nicholas Grieco 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 036.146071Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
239 Medicare Part D claims for 94 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 20 claims were for opioids.
Most prescribed
- Atorvastatin Calcium22 claims
- Clopidogrel19 claims
- Prednisone16 claims
- Hydrocodone-Acetaminophen14 claims
- Levofloxacin13 claims
- Furosemide11 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 2 group practices
- Carle Health Care IncorporatedPeoria, IL
- Methodist Medical Center OF IllinoisPeoria, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas Grieco among 7,238 internal medicine physician records in Illinois
Nicholas Grieco 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 2015, is newer than 61% of them.
- NPI issued2015 · 61% of these records are older, 37% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2015 · median 2003 among the 3,580 with a school on file
- Record last updated2018 · 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).
173 internal medicine physician records list a practice address in Peoria
They are 173 of the 4,621 NPPES records with a practice address in Peoria, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Peoria → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Waqas Ali, MDPeoria, IL 616361023094190
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- Azhar GhumraPeoria, IL 616361184373615
- Kashif Haque, M.D.Peoria, IL 616361285679704
- Shams Ilahi, MDPeoria, IL 616361801058409
- Anup Kotadia, MDPeoria, IL 616361134708449
- Pranitha KovuriPeoria, IL 616361205489135
Common questions
What is Nicholas Grieco's NPI number?
Nicholas Grieco's National Provider Identifier (NPI) is 1649657685, issued on Apr 29, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas Grieco located?
The NPPES record lists a practice address at 221 NE Glen Oak Ave, Peoria, IL, 61636. Phone: (309) 672-5729. Providers update this record themselves, so call before visiting.
How can I verify Nicholas Grieco's license?
NPPES lists Illinois license number 036.146071, 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 Nicholas Grieco prescribe under Medicare Part D?
In 2024, Nicholas Grieco had 239 Medicare Part D claims for 94 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.