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THOMAS J. OLSEN M.D.
NPI 1235142274
Internal Medicine in Saint Louis, MO

Active since August 14, 2006PECOS EnrolledAccepts Medicare Assignment
81.57/100
CMS Quality Rating
3660 VISTA AVE, SUITE 207, SAINT LOUIS, MO 63110(314) 977-6100(314) 977-6137 Get Directions Write a Review

NPPES record last updated: March 30, 2009. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Thomas J. Olsen M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

THOMAS J. OLSEN M.D. (NPI 1235142274) is an individual internal medicine provider in Saint Louis, Missouri, licensed in Missouri (R2C73) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Ssm Health Saint Louis University Hospital, and is a graduate of Saint Louis University School Of Medicine (1979).

NPPES Registry Identity

NPI1235142274
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameTHOMAS J. OLSENCredential: M.D.
Location Address3660 VISTA AVE, SUITE 207Saint Louis, MO 63110-2540
Mailing Address3691 Rutger St, Provider EnrollmentSaint Louis, MO 63110-2515 · (314) 977-4440
Phone(314) 977-6100
Fax(314) 977-6137
Sole ProprietorNo
Medical School CMSSaint Louis University School Of MedicineGraduated 1979
Enumeration DateAugust 14, 2006
Last NPPES UpdateMarch 30, 2009
✔ NPI 1235142274 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MO · R2C73
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
3660 VISTA AVE, Saint Louis, MO 63110
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Sunflower Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Thomas J. Olsen M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7719015627
PECOS Enrollment IDI20100514000043
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
98 services80 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
96 services66 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
71 services71 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
65 services59 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
63 services56 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
26 services22 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ssm Health Saint Louis University Hospital

Acute Care Hospitals · Saint Louis, MO
1/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number260105
Location3635 Vista AveSaint Louis, MO 63110 · St. Louis City County
Emergency services

Parkland Health Center

Acute Care Hospitals · Farmington, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260163
Location1101 W LibertyFarmington, MO 63640 · St. Francois County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63110 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

81.57/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality76.09
Promoting Interoperability100
Improvement Activities40
Cost54.28

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
7 suppliers24 claims55 services$5.51 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CHRISTINA TSAI
Internal Medicine
3660 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 977-6100
KRISTA L LENTINE MD,PHD
Internal Medicine (Nephrology)
3660 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 977-8765
MARGARET M WILSON MD
Internal Medicine (Geriatric Medicine)
3660 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 977-8462
DR. NANCY Z. DELANEY M.D.
Internal Medicine
3660 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 977-6100
DR. ESTHER A. GONZALEZ M.D.
Internal Medicine (Nephrology)
3660 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 577-8765
CHRISTIAN HENDRIX
Internal Medicine
3660 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 977-6100
MARILYN A. MAXWELL M.D.
Internal Medicine
3660 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 977-6100
HESSELBERG DRUG COMPANY
Pharmacy (Community/Retail Pharmacy)
3660 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 771-2900

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Thomas Olsen's NPI number?

The NPI number for Thomas Olsen is 1235142274. It was assigned to this individual provider in the NPPES registry on August 14, 2006.

Where is Thomas Olsen located?

Thomas Olsen practices at 3660 Vista Ave Suite 207, Saint Louis, MO 63110. The listed phone number is (314) 977-6100.

What is Thomas Olsen's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Thomas Olsen enrolled in Medicare?

Yes. Thomas Olsen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Thomas Olsen accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health and Ambetter from Sunflower Health Plan and 4 other insurers list Thomas Olsen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Thomas Olsen affiliated with any hospitals?

According to CMS data, Thomas Olsen is affiliated with Ssm Health Saint Louis University Hospital and Parkland Health Center.

When was this NPI record last updated?

The NPPES record for Thomas Olsen was last updated on March 30, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.