David Sachtleben, MD
Internal Medicine Physician · Westmont, IL
David Sachtleben, MD is an internal medicine physician with a practice address in Westmont, Illinois, and NPI 1861450447, issued on May 3, 2006. Check the license (Illinois 36089647, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- David Sachtleben
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 36089647 IL
Self-reported in NPPES; status is on the state search - Practice location
- 251 N Cass Ave, Westmont, IL 60559
- Phone
- (630) 963-0309
- Enumerated
- May 3, 2006
- Record last updated
- Feb 2, 2023
- Fax
- (630) 963-0319
- Medicare enrollment
- Enrolled (PECOS I20100422001117); may accept Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 1992
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 251 N Cass Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rudolph Albores, MDInternal Medicine Physician1285692889
Verify David Sachtleben 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 36089647Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.9 times the Medicare Part D claims of the average internal medicine physician in 2024
12,441 Medicare Part D claims for 770 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 80 claims were for opioids.
Most prescribed
- Atorvastatin Calcium870 claims
- Losartan Potassium798 claims
- Levothyroxine Sodium680 claims
- Amlodipine Besylate673 claims
- Lisinopril552 claims
- Hydrochlorothiazide398 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
- Nani Internal Med LLCWestmont, IL
- Select Rehabilitation, LLCGlenview, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Sachtleben among 7,238 internal medicine physician records in Illinois
David Sachtleben, MD 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1992 · median 2003 among the 3,580 with a school on file
- Record last updated2023 · 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).
17 internal medicine physician records list a practice address in Westmont
They are 17 of the 814 NPPES records with a practice address in Westmont, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Westmont → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Rudolph Albores, MDWestmont, IL 605591285692889
- Michael Alebich, DOWestmont, IL 605591376838656
- Shamir Bhatt, M.D.Westmont, IL 605591902807183
- Mayank Bhayana, M.D.Westmont, IL 605591477992899
- Jamal Eddine Daki, M.D.Westmont, IL 605591841245297
- Rasha Issa, M.D.Westmont, IL 605591639412745
- Zeina Kalache, MDWestmont, IL 605591306812557
- Cynthia Lagone, MDWestmont, IL 605591144236613
Common questions
What is David Sachtleben, MD's NPI number?
David Sachtleben, MD's National Provider Identifier (NPI) is 1861450447, issued on May 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David Sachtleben, MD located?
The NPPES record lists a practice address at 251 N Cass Ave, Westmont, IL, 60559. Phone: (630) 963-0309. Providers update this record themselves, so call before visiting.
How can I verify David Sachtleben, MD's license?
NPPES lists Illinois license number 36089647, 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 David Sachtleben, MD prescribe under Medicare Part D?
In 2024, David Sachtleben, MD had 12,441 Medicare Part D claims for 770 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.