Independent US Healthcare Provider Directory & Public Medical Database
Deactivated NPI 1669678033 Deactivated / Inactive NPI Male Practitioner

Dr. Willilam M Caplan , MD

Internal Medicine • Madison, WI

⚠️

Notice of NPI Deactivation & Inactive Practice Status

According to official public domain records published by CMS (Centers for Medicare & Medicaid Services) in the National Provider Identifier (NPPES) Registry, Dr. Willilam Caplan has officially deactivated this NPI record and ceased active healthcare practice.

Registration / Start Date June 22, 2007
NPI Deactivation Date May 07, 2026
Total Practice Duration ~19 Years of Practice (2007 – 2026)

Professional Overview & Biography Verified Profile Summary

Dr. Willilam Caplan, MD was a registered Internal Medicine practicing in Madison, WI. Throughout an active medical career spanning 19 years, Dr. Caplan provided care at the practice location at 20 S PARK ST until profile deactivation on 2026-05-07.

Practice Location & Contact Primary Location

Practice Address

20 S Park St

Madison, WI 537151348

Telephone 6082872440
Fax 6082872266
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Madison, WI

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 19.8 Yrs
State Avg: 26.2 Yrs
Regional Practice Density
426 Specialists

Practicing in Madison, WI (2181 Statewide)

Telehealth Adoption Rate
21.4% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License WI 23402

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

7 Associated Practitioners
Angela Morgan , PA-C

Physician Assistant - Medical

NPI 1013324904

Physician Assistant (Certified)

Lauren Knoche , PA-C

Physician Assistant - Medical

NPI 1073098711

Physician Assistant (Certified)

Dr. Elizabeth George , MD

Internal Medicine

NPI 1255308409

Doctor of Medicine (M.D.)

Dr. Tony Chang , MD

Internal Medicine

NPI 1831166990

Doctor of Medicine (M.D.)

Dr. Jason Dambach , MD

Internal Medicine

NPI 1831367887

Doctor of Medicine (M.D.)

Dr. Joanna Ruchala , MD

Internal Medicine

NPI 1922066208

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

7 Historical Events
⚠️
NPI Profile Deactivated May 07, 2026

Record deactivated on May 07, 2026

NPI Profile Active January 29, 2009

NPI status registered as active in NPPES database

📍
Updated Practice Location January 29, 2009

Registered at 20 S PARK ST, MADISON, WI 537151348 (Tel: 6082872440)

📍
Updated Business Mailing Address January 29, 2009

Registered at 7974 UW HEALTH CT, MIDDLETON, WI 535625531 (Tel: 6088295485)

👤
Provider Name / Credentials Updated January 29, 2009

Recorded as WILLILAM CAPLAN, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) January 29, 2009

Internal Medicine (License #23402 in WI)

🟢
Initial NPI Registration & Enumeration June 22, 2007

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews
No patient reviews submitted yet for Dr. Willilam Caplan. Be the first to share your experience!

Sign in to leave a review for Dr. Willilam Caplan

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1669678033
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 22, 2007
Last Update: January 29, 2009
Deactivation Date: May 07, 2026

Mailing Address

7974 Uw Health Ct

Middleton, WI 535625531

Phone: 6088295485

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.