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

Jonathan R Ernst, MD

Individual provider Internal Medicine Physician · NPI 1548675697

Jonathan R Ernst, MD is a Family Practice in Madison, Wisconsin. Qualified in 2014, 12 years ago. Practices with Dean Health Systems Inc, a 1,184-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Wisconsin.

Years since qualifying
12
Licensed in
WI
In the registry since
2014
Specialties on file
3
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

1211 Fish Hatchery Rd
Madison, WI 53715-1909
Phone: (608) 252-8000
Fax: (608) 283-7160
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1313 Fish Hatchery Rd, Madison, WI 53715-1911 — (608) 252-8000

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 67864-20 (WI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 67864-20 (WI)
Pediatrics Physician Taxonomy 208000000X · Licence 67864-20 (WI)

Record details

NPI number1548675697
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 27, 2014
Last updated in NPPESMay 24, 2022
Certification dateMay 24, 2022
Mailing address1211 Fish Hatchery Rd, Madison, WI 53715-1909

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Also practisesINTERNAL MEDICINE, PEDIATRIC MEDICINE
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Dean Health Systems Inc — 1184 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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