Harold Henry Bach, M.D.
Surgery Physician · Downers Grove, IL
Harold Henry Bach, M.D. is a surgery physician with a practice address in Downers Grove, Illinois, and NPI 1184886061, issued on Jul 1, 2008. Check the license (Illinois 036.126328, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Harold Henry Bach
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 036.126328 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3825 Highland Ave Ste 303, Downers Grove, IL 60515
- Phone
- (630) 275-7800
- Enumerated
- Jul 1, 2008
- Record last updated
- Jun 13, 2022
- Fax
- (630) 241-9215
- Medicare enrollment
- Enrolled (PECOS I20130701000719); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 1,520 in Illinois → Look up another NPI →
Also registered at 3825 Highland Ave Ste 303
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nina Paleologos, MDNeurology Physician1689733552
- Karen Schneider, APNFamily Nurse Practitioner1902273659
- Hayley Springs, D.O.Surgery Physician1013458264
- Paul Vana, M.D.Surgery Physician1609165745
Verify Harold Henry Bach 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 036.126328Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average surgery physician in 2024
56 Medicare Part D claims for 40 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 22 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen17 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
- Advocate Health And Hospitals CorporationDowners Grove, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Harold Henry Bach among 1,520 surgery physician records in Illinois
Harold Henry Bach, 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 2008, is newer than 42% of them.
- NPI issued2008 · 42% of these records are older, 52% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2008 · median 2004 among the 650 with a school on file
- Record last updated2022 · 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 Downers Grove → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Richard Brinkman, M.D.Downers Grove, IL 605151417964180
- Edgar Chedrawy, MDDowners Grove, IL 605151629089495
- Gale England, MDDowners Grove, IL 605151417959297
- Bryant Gilot, MD CM DPHILDowners Grove, IL 605151184848913
- Gary Grosel, MDDowners Grove, IL 605151043265382
- Michael Iwanicki, D.O.Downers Grove, IL 605151003845561
- Allen Mikhail, M.D.Downers Grove, IL 605151710152343
- Subhash Rao, MDDowners Grove, IL 605151497729651
Common questions
What is Harold Henry Bach, M.D.'s NPI number?
Harold Henry Bach, M.D.'s National Provider Identifier (NPI) is 1184886061, issued on Jul 1, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Harold Henry Bach, M.D. located?
The NPPES record lists a practice address at 3825 Highland Ave Ste 303, Downers Grove, IL, 60515. Phone: (630) 275-7800. Providers update this record themselves, so call before visiting.
How can I verify Harold Henry Bach, M.D.'s license?
NPPES lists Illinois license number 036.126328, 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 Harold Henry Bach, M.D. prescribe under Medicare Part D?
In 2024, Harold Henry Bach, M.D. had 56 Medicare Part D claims for 40 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.