Dr. Timothy E. Wiess, MD
- Medicare services, 2024
- 154
- Medicare patients, 2024
- 125
- Part D claims, 2024
- 315
- Hospital affiliations
- 5
- Industry payments
- $1,724
- Practice address
- 20201 Crawford Ave, Olympia Fields, IL 60461
- Practice phone
- Call (708) 852-2953
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Prime Healthcare Olympia Fields
Olympia Fields, Illinois
Find Dr. Wiess' professional email, personal email and mobile number
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. Timothy E. Wiess is an OB-GYN in Olympia Fields, Illinois
Dr. Wiess practices at Prime Healthcare Olympia Fields in Olympia Fields, Illinois.
Dr. Wiess' NPI, 1710910815, was assigned on July 9, 2006. Dr. Wiess graduated from Loyola University of Chicago, Stritch School of Medicine in 1991. Dr. Wiess holds Indiana license 01049993A.
- NPI
- 1710910815NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7810091873
- NPI enumeration date
- July 9, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (708) 852-2953
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Timothy E. Wiess practices at Prime Healthcare Olympia Fields in Olympia Fields, Illinois
Dr. Wiess' primary practice is Prime Healthcare Olympia Fields, at 20201 Crawford Ave, Olympia Fields, IL 60461 in Cook County. The practice phone is (708) 852-2953.
- Prime Healthcare Olympia Fields20201 Crawford Ave, Olympia Fields, IL 60461 · Cook CountyPhone(708) 852-2953
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Timothy E. Wiess is affiliated with 7 sites of care and 1 medical group
Dr. Wiess' primary practice is Prime Healthcare Olympia Fields in Olympia Fields, Illinois. Dr. Wiess is also affiliated with St. Mary Medical Center. The medical group on file is Franciscan Physician Network. Dmand AI also links Dr. Wiess to 4 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Timothy E. Wiess' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wiess practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Prime Healthcare Olympia Fields | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Timothy E. Wiess is one of 1,665 OB-GYNs in Illinois
Obstetrics and gynecology is Dr. Wiess' primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Wiess is licensed in Indiana.
Specialties and state licenses
- Obstetrics and gynecology, IndianaPrimary
OB-GYNs near Dr. Wiess
Counts of OB-GYNs 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. Timothy E. Wiess billed Medicare for 154 services in 2024
CMS data shows 154 Medicare services from Dr. Wiess across 3 procedure codes in 2024, for 125 Medicare patients. Medicare paid $7,183 for them. Every service was in an office.
Dr. Wiess' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 922024: 867%
- Office and hospital visits
- 2023: 612024: 6811%
Dr. Wiess compared with the Illinois median for OB-GYNs, 2024
- Dr. Wiess
- Illinois median
- Medicare services
- 154vs 483.2 times
- Medicare patients
- 125vs 442.8 times
- Part D claims
- 227vs 288.1 times
Medians across 1,360 OB-GYNs in Illinois with Dmand AI profiles that report each measure.
Dr. Wiess' 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Wiess and other OB-GYNs in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Timothy E. Wiess treated 125 Medicare patients in 2024, average age 71
CMS counts 125 Medicare patients who saw Dr. Wiess in 2024. The largest group is 65 to 74, with 57 patients. 68% of them have high cholesterol, and 66% have high blood pressure. 15% are also on Medicaid. Their average risk score is 0.88, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Wiess' median patient age at 43, with 99% women.
Dr. Wiess' Medicare patients by age, 2024
Chronic conditions among Dr. Wiess' Medicare patients, 2024
- High cholesterol68%
- High blood pressure66%
- Arthritis50%
- Anxiety31%
- Mood disorders24%
- Depression22%
- Diabetes22%
- Ischemic heart disease22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Wiess' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women99%
- Men1%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Timothy E. Wiess wrote 315 Medicare Part D claims in 2024
In 2024, Dr. Wiess wrote 315 Medicare Part D claims for 85 patients. 90% of them were for generic drugs. CMS names the drug for 227 of them, across 9 drugs with 11 or more claims each, at $12,348 in total drug cost. In 2023, CMS named 149 claims across 5 drugs.
Dr. Wiess' Part D claims by kind of drug, 2024
- Generic282 claims90%
- Brand-name33 claims10%
Dr. Wiess' 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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1492024: 22752%
Drugs named by CMS: 9 in 2024, 5 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 Dr. Timothy E. Wiess takes part in Medicare
Dr. Wiess 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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Dr. Timothy E. Wiess received $1,724 in industry payments from 2016 to 2025
CMS Open Payments shows 114 general payments to Dr. Wiess from 25 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 90% of the total. Abbvie Inc. paid the most, $529.
General payments to Dr. Wiess by program year, 2016 to 2025
General payments to Dr. Wiess by kind, 2016 to 2025
- Food and beverage$1,55890%
- Education$16610%
Companies that paid Dr. Wiess the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Timothy E. Wiess graduated from Loyola University of Chicago, Stritch School of Medicine
Dr. Wiess graduated from Loyola University of Chicago, Stritch School of Medicine in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Timothy E. Wiess'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 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) |
| Industry payments | Open Payments (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 Dr. Timothy E. Wiess
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. Timothy E. Wiess' NPI number?
Dr. Timothy E. Wiess' NPI number is 1710910815. It was assigned on July 9, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Timothy E. Wiess?
Dr. Timothy E. Wiess is an OB-GYN in Olympia Fields, Illinois. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Timothy E. Wiess practice?
Dr. Wiess practices at 20201 Crawford Ave, Olympia Fields, IL 60461. Dr. Wiess' primary practice is Prime Healthcare Olympia Fields in Olympia Fields, Illinois. Dmand AI also links Dr. Wiess to 4 hospitals and 1 group practice or clinic.
What is Dr. Timothy E. Wiess' office phone number?
The practice phone on file for Dr. Wiess is (708) 852-2953.
What is Dr. Timothy E. Wiess' medical license number?
Dr. Wiess holds Indiana license 01049993A.
Which hospitals is Dr. Timothy E. Wiess affiliated with?
Dr. Wiess is affiliated with St. Mary Medical Center. Dmand AI links Dr. Wiess to 4 more hospitals.
What medical group is Dr. Timothy E. Wiess part of?
Dr. Wiess is linked to Franciscan Physician Network.
Does Dr. Timothy E. Wiess accept Medicare?
Yes. CMS data shows Dr. Wiess billed Medicare for 154 services in 2024, and Dr. Wiess accepts Medicare assignment.
How many Medicare patients does Dr. Timothy E. Wiess see?
CMS counts 125 Medicare patients who saw Dr. Wiess in 2024, with an average age of 71.
What services does Dr. Timothy E. Wiess bill to Medicare?
In 2024, Dr. Wiess' most billed Medicare services were office visit, established patient (99213), medicare service (G0101) and medicare temporary code (Q0091).
Show 4 more questionsShow fewer questions
Where did Dr. Timothy E. Wiess go to medical school?
Dr. Wiess graduated from Loyola University of Chicago, Stritch School of Medicine in 1991.
What drugs does Dr. Timothy E. Wiess prescribe most?
In 2024 Medicare Part D data, Dr. Wiess' most prescribed drugs by claims were Alendronate Sodium, Estradiol and Premarin.
Has Dr. Timothy E. Wiess received payments from drug or device companies?
CMS Open Payments shows $1,724 in general payments to Dr. Wiess from 25 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Timothy E. Wiess been practicing?
Dr. Wiess graduated from medical school in 1991, 35 years ago.
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