Dr. William Simon Markey, MD
- Part D claims, 2024
- 39
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 3000 N Halsted St Ste 506 Suite 506, Chicago, IL 60657
- Practice phone
- Call (312) 944-2188
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
William Markey MD Internal Medicine, Gastroenterology
Physician office · Chicago, Illinois
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Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. William Simon Markey is a gastroenterologist in Chicago, Illinois
Dr. Markey practices at William Markey MD Internal Medicine, Gastroenterology in Chicago, Illinois.
Dr. Markey's NPI, 1033204706, was assigned on October 4, 2006. Dr. Markey holds Illinois license 36046023.
- NPI
- 1033204706NPI Registry (opens in a new tab)
- NPI enumeration date
- October 4, 2006
- NPI status
- Active
- Practice phone
- (312) 944-2188
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. William Simon Markey practices at William Markey MD Internal Medicine, Gastroenterology in Chicago, Illinois
Dr. Markey's primary practice is William Markey MD Internal Medicine, Gastroenterology, at 3000 N Halsted St Ste 506 Suite 506, Chicago, IL 60657. The practice phone is (312) 944-2188.
- William Markey MD Internal Medicine, Gastroenterology3000 N Halsted St Ste 506 Suite 506, Chicago, IL 60657Phone(312) 944-2188
Source: Dmand AI Affiliation Data
Dr. William Simon Markey is affiliated with 1 site of care
Dr. Markey's primary practice is William Markey MD Internal Medicine, Gastroenterology in Chicago, Illinois.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. William Simon Markey's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Markey practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| William Markey MD Internal Medicine, Gastroenterology | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Simon Markey is one of 771 gastroenterologists in Illinois
Gastroenterology is Dr. Markey's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Markey is licensed in Illinois.
Specialties and state licenses
- Gastroenterology, IllinoisPrimary
Gastroenterologists near Dr. Markey
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. William Simon Markey's patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Markey's median patient age at 73, with 0% women.
Dr. Markey's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. William Simon Markey wrote 39 Medicare Part D claims in 2024
In 2024, Dr. Markey wrote 39 Medicare Part D claims. 100% of them were for generic drugs.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Sources for Dr. William Simon Markey's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. William Simon Markey
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. William Simon Markey's NPI number?
Dr. William Simon Markey's NPI number is 1033204706. It was assigned on October 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William Simon Markey?
Dr. William Simon Markey is a gastroenterologist in Chicago, Illinois. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. William Simon Markey practice?
Dr. Markey practices at 3000 N Halsted St Ste 506 Suite 506, Chicago, IL 60657. Dr. Markey's primary practice is William Markey MD Internal Medicine, Gastroenterology in Chicago, Illinois.
What is Dr. William Simon Markey's office phone number?
The practice phone on file for Dr. Markey is (312) 944-2188.
What is Dr. William Simon Markey's medical license number?
Dr. Markey holds Illinois license 36046023.
How long has Dr. William Simon Markey been practicing?
Dr. Markey's NPI was assigned in 2006.
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