David S. Hemmer, M.D.
Specialist · St Charles, IL
David S. Hemmer, M.D. is a specialist with a practice address in St Charles, Illinois, and NPI 1710984729, issued on Jul 5, 2005. Check the license (Illinois 036052972, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- David S. Hemmer
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- 036052972 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2210 Dean St Ste L, St Charles, IL 60175
- Phone
- (630) 461-9833
- Enumerated
- Jul 5, 2005
- Record last updated
- Dec 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (847) 741-8587
- Medicaid ID
- 036052972 IL
- Medicare enrollment
- Enrolled (PECOS I20071005000807); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1974
- Entity
- Type 1 · individual
8 nearest specialist records → All 1,154 in Illinois → Look up another NPI →
Also registered at 2210 Dean St Ste L
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph PacerAudiologist-Hearing Aid Fitter1376798140
Verify David S. Hemmer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 036052972Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% more Medicare Part D claims than the average specialist in 2024
2,046 Medicare Part D claims for 691 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 1% of claims. 17 claims were for opioids.
Most prescribed
- Fluticasone Propionate534 claims
- Prednisone349 claims
- Omeprazole246 claims
- Azelastine Hcl241 claims
- Neomycin-Polymyxin-Hc94 claims
- Ipratropium Bromide88 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
- Fox Valley Ear, Nose And Throat, Assoc., S.C.Saint Charles, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David S. Hemmer among 1,154 specialist records in Illinois
David S. Hemmer, M.D. is one of 1,154 specialist records with a practice address in Illinois. 19% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 19% of these records are
- In the CMS Doctors and Clinicians fileYes · 11% of these records are
- Graduated1974 · median 1988 among the 127 with a school on file
- Record last updated2021 · 84% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 specialist records list a practice address in St Charles
They are 11 of the 1,113 NPPES records with a practice address in St Charles, and 1,154 specialist records in Illinois.
All 1,154 in Illinois → Every provider in St Charles → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Samantha Cheung, MT-BCSt Charles, IL 601751154559698
- Robert Morgan, CRNASt Charles, IL 601751376723700
- Ashley Musser, MT-BCSt Charles, IL 601751497955389
- Christine Pacocha, CRNASt Charles, IL 601751528248945
- Tonya Baker, ATCSt Charles, IL 601741942259411
- James Curtis, M.D.St Charles, IL 601741952354243
- Pamela Denhof, ATCSt Charles, IL 601741043283526
- Todd Hewell, M.D.St Charles, IL 601741104953397
Common questions
What is David S. Hemmer, M.D.'s NPI number?
David S. Hemmer, M.D.'s National Provider Identifier (NPI) is 1710984729, issued on Jul 5, 2005. An NPI identifies a provider in billing; it is not a license.
Where is David S. Hemmer, M.D. located?
The NPPES record lists a practice address at 2210 Dean St Ste L, St Charles, IL, 60175. Phone: (630) 461-9833. Providers update this record themselves, so call before visiting.
How can I verify David S. Hemmer, M.D.'s license?
NPPES lists Illinois license number 036052972, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does David S. Hemmer, M.D. prescribe under Medicare Part D?
In 2024, David S. Hemmer, M.D. had 2,046 Medicare Part D claims for 691 beneficiaries; the average among specialist prescribers was 1,380. 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.