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

Nathaniel Timothy Jest, DO

Individual provider Gastroenterology Physician · NPI 1053671982

Nathaniel Timothy Jest, DO practises Gastroenterology in Milwaukee, Wisconsin. Qualified in 2012, 14 years ago. Practices with Gastroenterology Specialists SC, a 29-clinician group. Licensed in Florida and Wisconsin.

Years since qualifying
14
Licensed in
FL, WI
In the registry since
2012
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

2801 W Kinnickinnic River Pkwy Ste 1080
Milwaukee, WI 53215-3689
Phone: (414) 908-6506
Fax: (414) 908-6510
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 71167-21 (WI)
Internal Medicine Physician Taxonomy 207R00000X · Licence UO3052 (FL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 71167-21 (WI)

Record details

NPI number1053671982
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 25, 2012
Last updated in NPPESJanuary 26, 2026
Certification dateJanuary 26, 2026

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice Gastroenterology Specialists Sc — 29 clinicians
Accepts Medicare assignment Not indicated
Practice locations3 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 126 times · 85th percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 65 times · 68th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients205
Services billed 368 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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.

Colleagues at Gastroenterology Specialists SC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 29 clinicians in the practice; 12 are shown here.

Other providers in Milwaukee