Dr. Thomas L. Michalsen , DO
General Practice • Kirkland, IL
406 S 5th St
Kirkland, IL 601467711
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Thomas Michalsen is listed in NPPES under General Practice.
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NPI assigned on July 19, 2006; this date does not establish years in practice.
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Published CMS data list 2,717 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99309 — Subsequent nursing facility care with moderate level of medical decision making, per day: 1,306 service units.
- 99213 — Established patient outpatient office visit: 420 service units.
- 99214 — Established patient outpatient office visit: 191 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 19 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 62,505 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Furosemide — 2,556 prescription fills, including refills.
- Levothyroxine Sodium — 2,270 prescription fills, including refills.
- Gabapentin — 2,250 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 336 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 80% of clinicians listed under General Practice in Illinois (2024, 37 clinicians with data). Median for this group: 736. Middle half: 212 to 2,114.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 4,090 in 2020 to 2,717 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
406 S 5th St
Kirkland, IL 601467711
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Select Rehabilitation, Llc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Midwestern University, Chicago College Of Osteopathic Med
1983
What Public CMS Data Show
General Practice: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
967 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $277,853 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $204,362 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
30-day fills
76,293 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$3,988,891 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $560.34 across 11 records.
By nature of payment
- Food and Beverage: $560.34 across 11 records.
Reporting-company totals (3 largest of 4)
- AstraZeneca Pharmaceuticals LP: $333.83 across 3 records.
- Eli Lilly and Company: $164.34 across 6 records.
- Cipher Pharmaceuticals US LLC: $43.08 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
43 years (graduated 1983)
CMS Doctors and Clinicians data list 1983 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Michalsen has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Michalsen as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Kirkland and Illinois
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 80% of clinicians listed under General Practice in Illinois (2024, 37 clinicians with data). Median for this group: 736. Middle half: 212 to 2,114.
Too few clinicians listed under General Practice in Kirkland have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 85% of clinicians listed under General Practice in Illinois (2024, 37 clinicians with data). Median for this group: $73,387. Middle half: $21,407 to $177,635.
Too few clinicians listed under General Practice in Kirkland have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 85% of clinicians listed under General Practice in Illinois (2024, 37 clinicians with data). Median for this group: $52,282. Middle half: $15,206 to $128,352.
Too few clinicians listed under General Practice in Kirkland have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 95% of clinicians listed under General Practice in Illinois (2024, 57 clinicians with data). Median for this group: 441. Middle half: 57 to 2,096.
Too few clinicians listed under General Practice in Kirkland have Medicare Part D data for 2024 to compare.
Part D drug cost
A higher Part D drug cost than 95% of clinicians listed under General Practice in Illinois (2024, 57 clinicians with data). Median for this group: $25,642. Middle half: $1,202 to $115,857.
Too few clinicians listed under General Practice in Kirkland have Medicare Part D data for 2024 to compare.
1 active clinicians are listed under General Practice with a practice address in Kirkland, IL (291 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 34% from 4,090 in 2020 to 2,717 in 2024.
- 2020: 4,090
- 2021: 4,408
- 2022: 3,498
- 2023: 3,284
- 2024: 2,717
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Medicare-allowed amount
Medicare-allowed amount decreased 19% from $342,243 in 2020 to $277,853 in 2024.
- 2020: $342,243
- 2021: $418,039
- 2022: $317,038
- 2023: $314,828
- 2024: $277,853
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Paid by Medicare
Paid by Medicare decreased 15% from $241,749 in 2020 to $204,362 in 2024.
- 2020: $241,749
- 2021: $313,112
- 2022: $236,105
- 2023: $236,857
- 2024: $204,362
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 40% from 44,712 in 2020 to 62,505 in 2024.
- 2020: 44,712
- 2021: 47,401
- 2022: 49,570
- 2023: 47,418
- 2024: 62,505
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30-day fills
30-day fills increased 35% from 56,354 in 2020 to 76,293 in 2024.
- 2020: 56,354
- 2021: 60,423
- 2022: 62,945
- 2023: 60,804
- 2024: 76,293
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Part D drug cost
Part D drug cost increased 53% from $2,614,773 in 2020 to $3,988,891 in 2024.
- 2020: $2,614,773
- 2021: $2,945,443
- 2022: $3,222,923
- 2023: $3,863,436
- 2024: $3,988,891
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $182.22 in 2021 to $560.34 in 2025.
- 2021: $182.22
- 2022: $326.77
- 2023: $492.46
- 2024: $381.87
- 2025: $560.34
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): 11 records totaling $560.34.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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FARXIGA | General | $219.99 |
| Eli Lilly and Company |
Food and Beverage
Cash or cash equivalent
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ZEPBOUND | General | $100.00 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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BREZTRI | General | $99.99 |
| Cipher Pharmaceuticals US LLC |
Food and Beverage
Cash or cash equivalent
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Natroba | General | $43.08 |
| Teva Pharmaceuticals USA, Inc. |
Food and Beverage
In-kind items and services
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AUSTEDO XR | General | $19.09 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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MOUNJARO | General | $19.09 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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MOUNJARO | General | $17.78 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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MOUNJARO | General | $13.91 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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— | General | $13.85 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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MOUNJARO | General | $8.17 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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MOUNJARO | General | $5.39 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99309
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes
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1,306 | 470 | $145.82 | $103.28 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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420 | 195 | $155.00 | $86.78 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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191 | 116 | $175.00 | $122.72 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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116 | 116 | $225.00 | $123.47 |
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99306
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more
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109 | 108 | $249.59 | $174.81 |
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99349
Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes
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103 | 86 | $300.00 | $122.59 |
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99306
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more
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85 | 82 | $235.00 | $174.06 |
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J0696
Injection, ceftriaxone sodium, per 250 mg
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80 | 11 | $8.75 | $0.45 |
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36415
Insertion of needle into vein for collection of blood sample
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56 | 46 | $10.00 | $8.65 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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47 | 39 | $218.09 | $172.85 |
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99310
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes
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33 | 31 | $180.66 | $144.06 |
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99308
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more
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31 | 26 | $100.00 | $71.31 |
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J1010
Injection, methylprednisolone acetate, 1 mg
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31 | 27 | $40.00 | $0.13 |
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20610
Aspiration and/or injection of fluid from large joint
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27 | 17 | $187.22 | $83.01 |
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96372
Injection of drug or substance under skin or into muscle
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27 | 14 | $36.30 | $13.46 |
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69210
Removal of impacted ear wax
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16 | 14 | $125.00 | $46.14 |
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G0008
Administration of influenza virus vaccine
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15 | 15 | $28.00 | $27.44 |
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99348
Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes
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13 | 11 | $250.00 | $73.48 |
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99350
Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes
|
11 | 11 | $350.00 | $178.21 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Furosemide | Furosemide | 2,556 | 50,911 | $12,529.40 | 296 |
| Levothyroxine Sodium | Levothyroxine Sodium | 2,270 | 55,809 | $17,110.10 | 250 |
| Gabapentin | Gabapentin | 2,250 | 43,432 | $23,576.66 | 226 |
| Atorvastatin Calcium | Atorvastatin Calcium | 2,150 | 37,872 | $18,328.49 | 224 |
| Amlodipine Besylate | Amlodipine Besylate | 1,803 | 46,740 | $9,405.32 | 239 |
| Potassium Chloride | Potassium Chloride | 1,755 | 39,020 | $22,947.05 | 198 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 1,588 | 86,082 | $19,387.46 | 315 |
| Quetiapine Fumarate | Quetiapine Fumarate | 1,480 | 32,971 | $18,991.03 | 182 |
| Tamsulosin Hcl | Tamsulosin Hcl | 1,422 | 43,493 | $16,359.49 | 215 |
| Pantoprazole Sodium | Pantoprazole Sodium | 1,412 | 40,972 | $15,335.12 | 191 |
| Lisinopril | Lisinopril | 1,316 | 35,161 | $7,034.28 | 163 |
| Metoprolol Tartrate | Metoprolol Tartrate | 1,215 | 26,597 | $6,846.16 | 164 |
| Famotidine | Famotidine | 1,134 | 12,201 | $6,018.05 | 70 |
| Eliquis | Apixaban | 1,087 | 15,372 | $322,196.19 | 119 |
| Metformin Hcl | Metformin Hcl | 1,074 | 24,810 | $5,471.03 | 127 |
| Olanzapine | Olanzapine | 965 | 10,818 | $6,973.36 | 57 |
| Donepezil Hcl | Donepezil Hcl | 924 | 18,319 | $8,181.01 | 97 |
| Escitalopram Oxalate | Escitalopram Oxalate | 878 | 22,130 | $7,627.21 | 118 |
| Metoprolol Succinate | Metoprolol Succinate | 878 | 20,579 | $9,976.17 | 138 |
| Omeprazole | Omeprazole | 868 | 22,215 | $6,992.69 | 124 |
| Sertraline Hcl | Sertraline Hcl | 833 | 17,421 | $8,514.26 | 100 |
| Xarelto | Rivaroxaban | 820 | 13,783 | $273,912.53 | 79 |
| Clopidogrel | Clopidogrel Bisulfate | 790 | 15,515 | $6,709.81 | 89 |
| Mirtazapine | Mirtazapine | 771 | 12,345 | $9,160.27 | 79 |
| Losartan Potassium | Losartan Potassium | 767 | 31,737 | $8,377.21 | 146 |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2022-08-22NUCC Taxonomy Code: 208D00000X
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - GENERAL PRACTICE
I20080718000036
IL
9739156043
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Select Rehabilitation, Llc
2600 Compass Rd, Glenview, IL 600268001
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner - Family
Doctor of Philosophy (Ph.D.), Family Nurse Practitioner (Board Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 406 S 5TH ST, KIRKLAND, IL 601467711 (Tel: 8155223301)
NPI status registered as active in NPPES database
Registered at 406 SOUTH 5TH STREET, KIRKLAND, IL 60146 (Tel: 8155223301)
Registered at 1713 OAKWOOD GLEN CLOSE, ROCKFORD, IL 611087011 (Tel: 8153324660)
Recorded as THOMAS MICHALSEN, D.O.
General Practice (license number reported to NPPES: IL 036066772)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Mailing Address
1713 Oakwood Glen Close
Rockford, IL 611087011
Phone: 8153324660