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

Andrew Robert Johannes, DO

Individual provider Gastroenterology Physician · NPI 1821437229

Andrew Robert Johannes, DO is an Internal Medicine in Wausau, Wisconsin. Qualified in 2013, 13 years ago. Practices with Gastrointestinal Associates SC, a 43-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
13
Licensed in
WI
In the registry since
2013
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.

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Practice location Address checks out

411 Westwood Dr
Wausau, WI 54401-4152
Phone: (715) 847-2558
Fax: (715) 261-6452
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 66968 (WI)

Record details

NPI number1821437229
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 19, 2013
Last updated in NPPESJuly 8, 2021
Certification dateJuly 8, 2021
Mailing address411 Westwood Dr, Wausau, WI 54401-4152

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesGASTROENTEROLOGY
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Gastrointestinal Associates S.C. — 43 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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