Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Jonathan Wynn Hemmert, MD

Individual provider Emergency Medicine Physician · NPI 1588827455

Dr. Jonathan Wynn Hemmert, MD is an Emergency Medicine in Houston, Texas. Graduated from University of Chicago, Pritzker School of Medicine in 2008, 18 years ago. Practices with Rayford ER Group PLLC, a 10-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
18
Trained at
University of Chicago, Pritzker School of Medicine
Licensed in
TX
In the registry since
2008
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

837 Fm 1960 Rd W
Houston, TX 77090-3423
Phone: (281) 453-7150
Fax: (281) 453-7155
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 N8791 (TX)

Record details

NPI number1588827455
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 9, 2008
Last updated in NPPESApril 20, 2015

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE
Graduated 2008 (18 years in practice)
Group practice Rayford Er Group Pllc — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Houston