Dr. Thomas J. Olsen, MD
- Medicare services, 2024
- 477
- Medicare patients, 2024
- 248
- Part D claims, 2024
- 2,575
- MIPS score, 2024
- 85
- Hospital affiliations
- 2
- Practice address
- 1201 S Grand Blvd, Saint Louis, MO 63104
- Practice phone
- Call (314) 257-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Olsen's professional email, personal email and mobile number
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Dr. Thomas J. Olsen is an internist in Saint Louis, Missouri
Dr. Olsen practices at SSM Health Saint Louis University Hospital in Saint Louis, Missouri, part of SSM Health Care.
Dr. Olsen's NPI, 1235142274, was assigned on August 14, 2006. Dr. Olsen graduated from Saint Louis University School of Medicine in 1979. Dr. Olsen holds Missouri license R2C73.
- NPI
- 1235142274NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7719015627
- NPI enumeration date
- August 14, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (314) 257-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas J. Olsen practices at SSM Health Saint Louis University Hospital in Saint Louis, Missouri
Dr. Olsen's primary practice is SSM Health Saint Louis University Hospital, at 1201 S Grand Blvd, Saint Louis, MO 63104 in St. Louis City. The practice phone is (314) 257-8000.
- SSM Health Saint Louis University Hospital1201 S Grand Blvd, Saint Louis, MO 63104 · St. Louis CityPhone(314) 257-8000
Source: Dmand AI Affiliation Data
Dr. Thomas J. Olsen is affiliated with 4 sites of care and 1 medical group
Dr. Olsen's primary practice is SSM Health Saint Louis University Hospital in Saint Louis, Missouri, part of SSM Health Care. Dr. Olsen is also affiliated with Parkland Health Center. The medical group on file is SLUCare Physician Group. Dmand AI also links Dr. Olsen to 1 more behavioral health center and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Thomas J. Olsen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Olsen practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| SSM Health Saint Louis University Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas J. Olsen is one of 2,114 internists in Missouri
Internal medicine is Dr. Olsen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Olsen is licensed in Missouri.
Specialties and state licenses
- Internal medicine, MissouriPrimary
Internists near Dr. Olsen
Counts of internists 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. Thomas J. Olsen billed Medicare for 477 services in 2024
CMS data shows 477 Medicare services from Dr. Olsen across 7 procedure codes in 2024, for 248 Medicare patients. Medicare paid $36,112 for them.
Dr. Olsen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3542024: 3482%
- Other services
- 2023: 1172024: 9915%
- Lab and pathology
- 2023: 312024: 1939%
- Tests and treatments
- 2023: 172024: 1135%
Where Dr. Olsen's Medicare services took place, 2024
- In an office29862%
- In a facility17938%
Dr. Olsen compared with the Missouri median for internists, 2024
- Dr. Olsen
- Missouri median
- Medicare services
- 477vs 53010% below
- Medicare patients
- 248vs 21118% above
- Part D claims
- 2,118vs 3256.5 times
Medians across 2,076 internists in Missouri with Dmand AI profiles that report each measure.
Dr. Olsen'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Olsen and other internists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas J. Olsen treated 248 Medicare patients in 2024, average age 73
CMS counts 248 Medicare patients who saw Dr. Olsen in 2024. The largest group is 65 to 74, with 106 patients. 75% of them have high blood pressure, and 70% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.48, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Olsen's median patient age at 68, with 56% women.
Dr. Olsen's Medicare patients by age, 2024
Dr. Olsen's Medicare patients by sex, 2024
- Women14056%
- Men10844%
Chronic conditions among Dr. Olsen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol70%
- Arthritis46%
- Diabetes31%
- Ischemic heart disease28%
- Mood disorders26%
- Chronic kidney disease23%
- Depression23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Olsen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Thomas J. Olsen wrote 2,575 Medicare Part D claims in 2024
In 2024, Dr. Olsen wrote 2,575 Medicare Part D claims for 304 patients. 90% of them were for generic drugs. CMS names the drug for 2,118 of them, across 53 drugs with 11 or more claims each, at $95,608 in total drug cost. In 2023, CMS named 2,263 claims across 54 drugs.
Dr. Olsen's Part D claims by kind of drug, 2024
- Generic2,322 claims90%
- Brand-name229 claims9%
- Other24 claims1%
Dr. Olsen'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 Dr. Olsen's Part D claims, 2024
- Opioids6%158 of 2,575 claims
- Antibiotics1%28 of 2,575 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: 2,2632024: 2,1186%
Drugs named by CMS: 53 in 2024, 54 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
Dr. Thomas J. Olsen scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Olsen for performance year 2024, reported as part of a group. Dr. Olsen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Olsen's MIPS scores, performance year 2024
- 85of 100Final score
- 68.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 72of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Thomas J. Olsen graduated from Saint Louis University School of Medicine
Dr. Olsen graduated from Saint Louis University School of Medicine in 1979.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Thomas J. Olsen'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 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)Clinician Public Reporting: Overall MIPS Performance (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. Thomas J. Olsen
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. Thomas J. Olsen's NPI number?
Dr. Thomas J. Olsen's NPI number is 1235142274. It was assigned on August 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas J. Olsen?
Dr. Thomas J. Olsen is an internist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Thomas J. Olsen practice?
Dr. Olsen practices at 1201 S Grand Blvd, Saint Louis, MO 63104. Dr. Olsen's primary practice is SSM Health Saint Louis University Hospital in Saint Louis, Missouri, part of SSM Health Care. Dmand AI also links Dr. Olsen to 1 behavioral health center and 1 group practice or clinic.
What is Dr. Thomas J. Olsen's office phone number?
The practice phone on file for Dr. Olsen is (314) 257-8000.
What is Dr. Thomas J. Olsen's medical license number?
Dr. Olsen holds Missouri license R2C73.
Which hospitals is Dr. Thomas J. Olsen affiliated with?
Dr. Olsen practices at SSM Health Saint Louis University Hospital in Saint Louis, Missouri. Dr. Olsen is also affiliated with Parkland Health Center.
What medical group is Dr. Thomas J. Olsen part of?
Dr. Olsen is linked to SLUCare Physician Group.
Does Dr. Thomas J. Olsen accept Medicare?
Yes. CMS data shows Dr. Olsen billed Medicare for 477 services in 2024, and Dr. Olsen accepts Medicare assignment.
What is Dr. Thomas J. Olsen's MIPS score?
Dr. Olsen's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
How many Medicare patients does Dr. Thomas J. Olsen see?
CMS counts 248 Medicare patients who saw Dr. Olsen in 2024, with an average age of 73.
Show 4 more questionsShow fewer questions
What services does Dr. Thomas J. Olsen bill to Medicare?
In 2024, Dr. Olsen's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and medicare service (G0439).
Where did Dr. Thomas J. Olsen go to medical school?
Dr. Olsen graduated from Saint Louis University School of Medicine in 1979.
What drugs does Dr. Thomas J. Olsen prescribe most?
In 2024 Medicare Part D data, Dr. Olsen's most prescribed drugs by claims were Amlodipine Besylate, Lisinopril and Atorvastatin Calcium.
How long has Dr. Thomas J. Olsen been practicing?
Dr. Olsen graduated from medical school in 1979, 47 years ago.
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