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

Mr. Andrew Joseph Walker, MD

Individual provider Gastroenterology Physician · NPI 1649482605

Mr. Andrew Joseph Walker, MD is a Gastroenterology in Madison, Wisconsin. Graduated from Saint Louis University School of Medicine in 2007, 19 years ago. Practices with Dean Health Systems Inc, a 1,184-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Wisconsin.

Years since qualifying
19
Trained at
Saint Louis University School of Medicine
Licensed in
WI
In the registry since
2007
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

700 S Park St Ste A
Madison, WI 53715-1830
Phone: (608) 260-2900
Fax: (608) 260-2977
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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 52357 (WI)

Record details

NPI number1649482605
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 4, 2007
Last updated in NPPESDecember 15, 2020
Certification dateDecember 15, 2020

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2007 (19 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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