Dr. Mark T Upton, M.D.
Dr. Mark T Upton is a Cardiovascular Disease Physician provider (Internal Medicine) practicing in Chicago, IL, registered in the NPPES registry with NPI 1114993250 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1114993250 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Mark T Upton |
| Credential | M.D. |
| Sex | Male |
| Practice address | 233 E ERIE ST, SUITE 412, Chicago, IL, 60611 |
| Phone | 3125730973 |
| Fax | 3125730973 |
| Enumeration date | 2006-02-28 |
| Last updated in NPPES | 2007-07-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207RC0000X | Cardiovascular Disease Physician | Primary | — | IL |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Copy-ready billing details
Provider: Mark Upton, M.D. NPI: 1114993250 Taxonomy: 207RC0000X (Cardiovascular Disease Physician) Address: 233 E ERIE ST, SUITE 412, Chicago, IL, 60611
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1619960184 | Arnold Grauer | Individual | Internal Medicine Physician | Chicago, IL |
| 1831184001 | Stephen Becker | Individual | Otolaryngology/Facial Plastic Surgery Physician | Chicago, IL |
| 1639154156 | Laura Rogers | Individual | Allergy Physician | Chicago, IL |
| 1225014103 | Robert Craig | Individual | Hepatology Physician | Chicago, IL |
| 1821074790 | Robert M. Craig, M.D. | Organization | Hepatology Physician | Chicago, IL |
| 1184699563 | Mark T Upton MD Facc Sc | Organization | Cardiovascular Disease Physician | Chicago, IL |
| 1114994217 | Janet Peden | Individual | Clinical Psychologist | Chicago, IL |
| 1376503557 | Anne Kudelka | Individual | Cardiovascular Disease Physician | Chicago, IL |
Verify this record
Cross-check NPI 1114993250 against the authoritative CMS record: view Dr. Mark T Upton on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.