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Deactivated NPI 1083690093 Deactivated / Inactive NPI Male Practitioner

Dr. Mark S Travis , MD

Internal Medicine • Chicago, IL

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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. Mark Travis has officially deactivated this NPI record and ceased active healthcare practice.

Registration / Start Date December 21, 2005
NPI Deactivation Date September 18, 2025
Total Practice Duration ~20 Years of Practice (2005 – 2025)

Professional Overview & Biography Verified Profile Summary

Dr. Mark Travis, MD was a registered Internal Medicine practicing in Chicago, IL. Throughout an active medical career spanning 20 years, Dr. Travis provided care at the practice location at 1229 N NORTH BRANCH ST until profile deactivation on 2025-09-18.

Historical Medicare Part B clinical services included residence visit for established patient with moderate level of medical decision making, per day, if using time, at least, physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow, test to measure expiratory airflow and volume. Public procedure reimbursement records and service volume details are provided below for historical transparency.

Practice Location & Contact Primary Location

Practice Address

1229 N North Branch St
Suite 210

Chicago, IL 606222473

Telephone 3129395090
Fax 3126404496
Associated Practice Facility / Clinic
🏢 Mobile Doctors Management Facility NPI 1326233735

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Chicago, IL

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 21.8 Yrs
State Avg: 28.9 Yrs
Regional Practice Density
2969 Specialists

Practicing in Chicago, IL (7544 Statewide)

Telehealth Adoption Rate
12.8% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
21.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2020)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99349 Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes
84 15 $152.08 $119.22

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License IN 01061315A

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

12 Associated Practitioners
Dr. Norman Johnston , MD

Family Medicine - Geriatric Medicine

NPI 1003845413

Doctor of Medicine (M.D.)

NPI 1083875256

Doctor of Podiatric Medicine

Dr. Joseph Misulonas , MD

Internal Medicine - Geriatric Medicine

NPI 1104936392

Doctor of Medicine (M.D.)

Dr. Alan Sisson , MD

Emergency Medicine

NPI 1376793737

Doctor of Medicine (M.D.)

Dr. Mikhail Magdel , MD

Internal Medicine - Geriatric Medicine

NPI 1528258571

Doctor of Medicine (M.D.)

Dr. Sarah Mendenhall , MD

Internal Medicine - Geriatric Medicine

NPI 1558301705

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

7 Historical Events
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NPI Profile Deactivated September 18, 2025

Record deactivated on September 18, 2025

NPI Profile Active August 01, 2007

NPI status registered as active in NPPES database

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Updated Practice Location August 01, 2007

Registered at 1229 N NORTH BRANCH ST, SUITE 210, CHICAGO, IL 606222473 (Tel: 3129395090)

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Updated Business Mailing Address August 01, 2007

Registered at 1229 N NORTH BRANCH ST, SUITE 210, CHICAGO, IL 606222473 (Tel: 3129395090)

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Provider Name / Credentials Updated August 01, 2007

Recorded as MARK TRAVIS, MD

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Medical Taxonomy / Specialty Registered (Primary Specialty) August 01, 2007

Internal Medicine (License #01061315A in IN)

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Initial NPI Registration & Enumeration December 21, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1083690093
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: December 21, 2005
Last Update: August 01, 2007
Deactivation Date: September 18, 2025

Mailing Address

1229 N North Branch St, Suite 210

Chicago, IL 606222473

Phone: 3129395090

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.