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

John Tharnstrom, PA

Individual provider Emergency Medicine Physician · NPI 1467541227

John Tharnstrom, PA is an Emergency Medicine Physician in Naperville, Illinois. Licensed in Illinois and Texas. Registered with an NPI since 2006.

Licensed in
IL, TX
In the registry since
2006
Specialties on file
2
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

808 Rickert Dr Ste 103
Naperville, IL 60540-0908
Phone: (331) 551-5854
Fax: (630) 348-3098
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

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 085-002044 (IL)
Physician Assistant Taxonomy 363A00000X · Licence PA09915 (TX)

Record details

NPI number1467541227
Entity typeIndividual (Type 1)
GenderMale
Credentials PA
Sole proprietorNo
NPI enumeratedOctober 12, 2006
Last updated in NPPESJuly 28, 2023
Certification dateJuly 28, 2023

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 patients231
Services billed 609 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

Other providers in Naperville