Gregory S. Grant, MD
Surgery Physician · Naperville, IL
Gregory S. Grant, MD is a surgery physician with a practice address in Naperville, Illinois, and NPI 1912973686, issued on Feb 23, 2006. Check the license (Illinois 036093207, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Gregory S. Grant
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 036093207 IL
Self-reported in NPPES; status is on the state search - Practice location
- 120 Spalding Dr, Naperville, IL 60540
- Phone
- (630) 961-0423
- Enumerated
- Feb 23, 2006
- Record last updated
- Aug 8, 2023
- Fax
- (630) 961-9280
- Medicare enrollment
- Enrolled (PECOS I20071106000065); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1992
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 1,520 in Illinois → Look up another NPI →
Also registered at 120 Spalding Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amy Batista, NPAdult Health Nurse Practitioner1770844060
- Rosemarie Batiste, APN-CNPNurse Practitioner1245434851
- Mansoina Baweja, MDHematology & Oncology Physician1629052089
- Michael Caron, MDNeurological Surgery Physician1275738023
- Cathleen Cregier, APNInternal Medicine Physician1245227271
- Neil Das Gupta, M.D.Radiation Oncology Physician1316974363
Verify Gregory S. Grant 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 036093207Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% more Medicare Part D claims than the average surgery physician in 2024
216 Medicare Part D claims for 136 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 98 claims were for opioids.
Most prescribed
- Tramadol Hcl81 claims
- Ibuprofen17 claims
- Metronidazole17 claims
- Neomycin Sulfate17 claims
- Hydrocodone-Acetaminophen14 claims
- Metoclopramide Hcl12 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: $11,004.07
21 payments; by number, the most common kind was education; the largest payer was Intuitive Surgical, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 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
- Dupage Medical Group LtdNaperville, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory S. Grant among 1,520 surgery physician records in Illinois
Gregory S. Grant, MD is one of 1,520 surgery physician records with a practice address in Illinois. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 64% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated1992 · median 2004 among the 650 with a school on file
- Record last updated2023 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Illinois
There are 1,520 surgery physician records in Illinois.
All 1,520 in Illinois → Every provider in Naperville → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Bart Green, MDNaperville, IL 605401386610087
- Lori Hutcherson, MDNaperville, IL 605401093102683
- Irene Israel, MDNaperville, IL 605401629431739
- Beatrice Klade, M.D,Naperville, IL 605401689640567
- Morta Lapkus, MDNaperville, IL 605401245689603
- Louis Montana, MDNaperville, IL 605401184698425
- Ahmad Nourallah, MDNaperville, IL 605401164965992
- Obi Okoye, M.D.Naperville, IL 605401942640693
Common questions
What is Gregory S. Grant, MD's NPI number?
Gregory S. Grant, MD's National Provider Identifier (NPI) is 1912973686, issued on Feb 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory S. Grant, MD located?
The NPPES record lists a practice address at 120 Spalding Dr, Naperville, IL, 60540. Phone: (630) 961-0423. Providers update this record themselves, so call before visiting.
How can I verify Gregory S. Grant, MD's license?
NPPES lists Illinois license number 036093207, 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 Gregory S. Grant, MD prescribe under Medicare Part D?
In 2024, Gregory S. Grant, MD had 216 Medicare Part D claims for 136 beneficiaries; the average among surgery physician prescribers was 147. 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.