Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mr. David Sachtleben, MD

Individual provider Internal Medicine Physician · NPI 1861450447

Mr. David Sachtleben, MD practises Internal Medicine in Westmont, Illinois. Graduated from Loyola University of Chicago, Stritch School of Medicine in 1992, 34 years ago. Practices with Nani Internal Med LLC, a 5-clinician group and offers telehealth. Licensed in Illinois.

Years since qualifying
34
Trained at
Loyola University of Chicago, Stritch School of Medicine
Licensed in
IL
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

251 N Cass Ave Ste 100
Westmont, IL 60559-1744
Phone: (630) 963-0309
Fax: (630) 963-0319
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 36089647 (IL)

Record details

NPI number1861450447
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 3, 2006
Last updated in NPPESFebruary 2, 2023
Certification dateFebruary 2, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolLOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
Graduated 1992 (34 years in practice)
Group practice Nani Internal Med Llc — 5 clinicians
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients568
Services billed 4,037 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Elmhurst Memorial Hospital Hospital · Elmhurst, IL
  • Loyola University Medical Center Hospital · Maywood, IL
  • Rehabilitation Institute of Chicago Inpatient rehabilitation facility · Chicago, IL
  • Uchicago Medicine Adventhealth Bolingbrook Hospital · Bolingbrook, IL
  • Uchicago Medicine Adventhealth Hinsdale Hospital · Hinsdale, IL
  • Uchicago Medicine Adventhealth La Grange Hospital · La Grange, IL
  • Loyola Medicine Home Care Home health agency · Oak Brook, IL
  • Uchicago Medicine Adventhealth Home Care Home health agency · La Grange, IL

Colleagues at Nani Internal Med LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Westmont