Mary E. Keller, M.D.
Surgery Physician · Rockford, IL
Mary E. Keller, M.D. is a surgery physician with a practice address in Rockford, Illinois, and NPI 1275567703, issued on Jul 10, 2006. Check the license (Illinois 036107717, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mary E. Keller
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 036107717 IL
Self-reported in NPPES; status is on the state search - Practice location
- 5668 E State St, Rockford, IL 61108
- Phone
- (815) 229-7580
- Enumerated
- Jul 10, 2006
- Record last updated
- Oct 6, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (815) 229-7585
- Medicaid ID
- 036107717 IL
- Medicare enrollment
- Enrolled (PECOS I20051116000657); accepts Medicare assignment
- Medical or professional school
- University Of Missouri, Kansas City, School Of Medicine, 1994
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 1,520 in Illinois → Look up another NPI →
Also registered at 5668 E State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sameer Ansar, M.D.Endocrinology, Diabetes & Metabolism Physician1942485735
- Jeffrey Barteau, M.D.Surgery Physician1053344903
- David Cable, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1033183728
- Leslie Edgcomb, M.D.Vascular Surgery Physician1629014022
- Andreas Fischer, MDOrthopaedic Surgery Physician1235139452
- James Girardy, M.D.Surgery Physician1992738819
Verify Mary E. Keller 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 036107717Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% fewer Medicare Part D claims than the average surgery physician in 2024
96 Medicare Part D claims for 39 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D.
Most prescribed
- Mupirocin39 claims
- Gentamicin Sulfate25 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
- Osf Multi-Specialty GroupRockford, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary E. Keller among 1,520 surgery physician records in Illinois
Mary E. Keller, M.D. 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
- Graduated1994 · median 2004 among the 650 with a school on file
- Record last updated2015 · 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 Rockford → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Jeffrey Barteau, M.D.Rockford, IL 611081053344903
- James Girardy, M.D.Rockford, IL 611081992738819
- Robert Hodge, MDRockford, IL 611081831298942
- Yevhen Pavelko, MDRockford, IL 611081811576085
- Dacia Pickering, M.D.Rockford, IL 611081063686848
- John Player, DORockford, IL 611081285965905
- Edward Pyun, MDRockford, IL 611081386748473
- Elisha Robinson, MDRockford, IL 611081750584058
Common questions
What is Mary E. Keller, M.D.'s NPI number?
Mary E. Keller, M.D.'s National Provider Identifier (NPI) is 1275567703, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary E. Keller, M.D. located?
The NPPES record lists a practice address at 5668 E State St, Rockford, IL, 61108. Phone: (815) 229-7580. Providers update this record themselves, so call before visiting.
How can I verify Mary E. Keller, M.D.'s license?
NPPES lists Illinois license number 036107717, 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 Mary E. Keller, M.D. prescribe under Medicare Part D?
In 2024, Mary E. Keller, M.D. had 96 Medicare Part D claims for 39 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.