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

Patrick Paul Litonjua, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1831297308

Patrick Paul Litonjua, MD is an Endocrinology in Janesville, Wisconsin. Qualified in 1990, 36 years ago. Practices with Mercy Health System Corporation, a 751-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Wisconsin.

Years since qualifying
36
Licensed in
WI
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

3524 E Milwaukee St
Janesville, WI 53546-1626
Phone: (608) 756-7100
Fax: (608) 756-4700
Show map & directions

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

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 52852-020 (WI)

Record details

NPI number1831297308
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 20, 2006
Last updated in NPPESSeptember 10, 2012

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Group practice Mercy Health System Corporation — 751 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services