Stephan Andrew Olaya
- Medicare services, 2024
- 131
- Medicare patients, 2024
- 74
- Part D claims, 2024
- 543
- Hospital affiliations
- 1
- Medical groups
- 2
- Practice address
- 5841 S Maryland Ave, Chicago, IL 60637
- Practice phone
- Call (773) 702-1530
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
The University of Chicago Medical Center
Chicago, Illinois
Find Stephan Olaya's professional email, personal email and mobile number
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Stephan Andrew Olaya is a hospitalist in Chicago, Illinois
Stephan Olaya practices at The University of Chicago Medical Center in Chicago, Illinois.
Stephan Olaya's NPI, 1801477047, was assigned on April 19, 2021. Stephan Olaya graduated from University of Maryland School of Medicine in 2021. Stephan Olaya holds Illinois license 036169885.
- NPI
- 1801477047NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173925393
- NPI enumeration date
- April 19, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (773) 702-1530
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Stephan Andrew Olaya practices at The University of Chicago Medical Center in Chicago, Illinois
Stephan Olaya's primary practice is The University of Chicago Medical Center, at 5841 S Maryland Ave, Chicago, IL 60637 in Cook County. The practice phone is (773) 702-1530.
- The University of Chicago Medical Center5841 S Maryland Ave, Chicago, IL 60637 · Cook CountyPhone(773) 702-1530
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Stephan Andrew Olaya is affiliated with 2 sites of care and 2 medical groups
Stephan Olaya's primary practice is The University of Chicago Medical Center in Chicago, Illinois. Stephan Olaya is also affiliated with University of Chicago Medical Center. The medical group on file is UChicago Medicine Physicians. Dmand AI also links Stephan Olaya to 1 more medical group, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Stephan Andrew Olaya's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Stephan Olaya practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The University of Chicago Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Stephan Andrew Olaya is one of 1,321 hospitalists in Illinois
Hospitalist is Stephan Olaya's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Stephan Olaya is licensed in Illinois.
Specialties and state licenses
- Hospitalist, IllinoisPrimary
Hospitalists near Stephan Olaya
Counts of hospitalists 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
Stephan Andrew Olaya billed Medicare for 131 services in 2024
CMS data shows 131 Medicare services from Stephan Olaya across 4 procedure codes in 2024, for 74 Medicare patients. Medicare paid $13,369 for them. Every service was in a facility, such as a hospital, rather than an office.
Stephan Olaya compared with the Illinois median for hospitalists, 2024
- Stephan Olaya
- Illinois median
- Medicare services
- 131vs 54376% below
- Medicare patients
- 74vs 24269% below
- Part D claims
- 259vs 534.9 times
Medians across 1,248 hospitalists in Illinois with Dmand AI profiles that report each measure.
Stephan Olaya's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Stephan Andrew Olaya treated 74 Medicare patients in 2024, average age 71
CMS counts 74 Medicare patients who saw Stephan Olaya in 2024. The largest group is 65 to 74, with 29 patients. 75% of them have high blood pressure, and 68% have high cholesterol. 45% are also on Medicaid. Their average risk score is 3.39, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Stephan Olaya's median patient age at 73, with 57% women.
Stephan Olaya's Medicare patients by age, 2024
Stephan Olaya's Medicare patients by sex, 2024
- Women4155%
- Men3345%
Chronic conditions among Stephan Olaya's Medicare patients, 2024
- High blood pressure75%
- High cholesterol68%
- Arthritis65%
- Diabetes51%
- Chronic kidney disease50%
- Mood disorders47%
- Depression43%
- Heart failure42%
Share of Medicare patients with each condition. A patient can have several.
Stephan Olaya'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
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Stephan Andrew Olaya wrote 543 Medicare Part D claims in 2024
In 2024, Stephan Olaya wrote 543 Medicare Part D claims for 89 patients. 88% of them were for generic drugs. CMS names the drug for 259 of them, across 15 drugs with 11 or more claims each, at $2,828 in total drug cost. In 2023, CMS named 447 claims across 17 drugs.
Stephan Olaya's Part D claims by kind of drug, 2024
- Generic477 claims88%
- Brand-name55 claims10%
- Other11 claims2%
Stephan Olaya's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Stephan Olaya's Part D claims, 2024
- Antibiotics5%27 of 543 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4472024: 25942%
Drugs named by CMS: 15 in 2024, 17 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Stephan Andrew Olaya takes part in Medicare
Stephan Olaya accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Stephan Andrew Olaya graduated from University of Maryland School of Medicine
Stephan Olaya graduated from University of Maryland School of Medicine in 2021.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Stephan Andrew Olaya'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Stephan Andrew Olaya
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Stephan Andrew Olaya's NPI number?
Stephan Andrew Olaya's NPI number is 1801477047. It was assigned on April 19, 2021, and it is active in the NPI Registry.
What does Stephan Andrew Olaya specialize in?
Stephan Andrew Olaya is a hospitalist in Chicago, Illinois. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Stephan Andrew Olaya practice?
Stephan Olaya practices at 5841 S Maryland Ave, Chicago, IL 60637. Stephan Olaya's primary practice is The University of Chicago Medical Center in Chicago, Illinois. Dmand AI also links Stephan Olaya to 1 medical group.
What is Stephan Andrew Olaya's office phone number?
The practice phone on file for Stephan Olaya is (773) 702-1530.
What is Stephan Andrew Olaya's medical license number?
Stephan Olaya holds Illinois license 036169885.
Which hospitals is Stephan Andrew Olaya affiliated with?
Stephan Olaya is affiliated with University of Chicago Medical Center.
What medical group is Stephan Andrew Olaya part of?
Stephan Olaya is linked to UChicago Medicine Physicians. Dmand AI links Stephan Olaya to 1 more medical group.
Does Stephan Andrew Olaya accept Medicare?
Yes. CMS data shows Stephan Olaya billed Medicare for 131 services in 2024, and Stephan Olaya accepts Medicare assignment.
How many Medicare patients does Stephan Andrew Olaya see?
CMS counts 74 Medicare patients who saw Stephan Olaya in 2024, with an average age of 71.
What services does Stephan Andrew Olaya bill to Medicare?
In 2024, Stephan Olaya's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99223) and hospital inpatient care (99232).
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Where did Stephan Andrew Olaya go to medical school?
Stephan Olaya graduated from University of Maryland School of Medicine in 2021.
What drugs does Stephan Andrew Olaya prescribe most?
In 2024 Medicare Part D data, Stephan Olaya's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Metoprolol Succinate.
How long has Stephan Andrew Olaya been practicing?
Stephan Olaya graduated from medical school in 2021, 5 years ago.
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