Mark Timothy Steinhauser , PA-C
Physician Assistant โข Chicago, IL
259 E Erie St
Chicago, IL 60611
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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Mark Steinhauser is listed in NPPES under Physician Assistant.
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NPI assigned on May 28, 2019; this date does not establish years in practice.
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Published CMS data list 277 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99285 โ Emergency department visit with high level of medical decision making: 145 service units.
- 99284 โ Emergency department visit with moderate level of medical decision making: 132 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See the full table ยท Guide: How to read Medicare Part B data
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Published CMS data list 351 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) โ 51 prescription fills, including refills.
- Prednisone โ 47 prescription fills, including refills.
- Ondansetron Odt (Ondansetron) โ 35 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 14 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 70% of clinicians listed under Physician Assistant in Chicago, IL (2024, 588 clinicians with data). Median for this group: 110. Middle half: 45 to 306.
Close to the middle for Medicare Part B services among clinicians listed under Physician Assistant in Illinois (2024, 2,422 clinicians with data). Median for this group: 212. Middle half: 76 to 548.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 126 in 2021 to 277 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2021โ2024.
Practice Location & Contact Primary Location
259 E Erie St
Chicago, IL 60611
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Dubuque, IA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Dubuque Emergency Physicians Pc. 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
Northwestern University Feinberg Medical School
2019
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
258 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 โ by Provider, 2024.
Medicare-allowed amount
About $32,110 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 โ by Provider and Service, 2024.
Paid by Medicare
About $23,178 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 โ by Provider and Service, 2024.
30-day fills
352 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
$3,921 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 โ by Provider and Drug, 2024.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2021โ2025.
Years since graduation
7 years (graduated 2019)
CMS Doctors and Clinicians data list 2019 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
2019
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, โDoes your provider accept Medicare as full payment?โ
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)
Mark Steinhauser 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 Mark Steinhauser 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 Chicago and Illinois
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 70% of clinicians listed under Physician Assistant in Chicago, IL (2024, 588 clinicians with data). Median for this group: 110. Middle half: 45 to 306.
Close to the middle for clinicians listed under Physician Assistant in Illinois (2024, 2,422 clinicians with data). Median for this group: 212. Middle half: 76 to 548.
Medicare-allowed amount
A higher Medicare-allowed amount than 85% of clinicians listed under Physician Assistant in Chicago, IL (2024, 588 clinicians with data). Median for this group: $9,495. Middle half: $3,730 to $23,698.
A higher Medicare-allowed amount than 70% of clinicians listed under Physician Assistant in Illinois (2024, 2,422 clinicians with data). Median for this group: $16,580. Middle half: $6,650 to $35,717.
Paid by Medicare
A higher Medicare payment amount than 85% of clinicians listed under Physician Assistant in Chicago, IL (2024, 588 clinicians with data). Median for this group: $7,176. Middle half: $2,794 to $17,605.
A higher Medicare payment amount than 70% of clinicians listed under Physician Assistant in Illinois (2024, 2,422 clinicians with data). Median for this group: $12,415. Middle half: $4,894 to $26,472.
Medicare Part D prescriptions
More Part D prescriptions than 75% of clinicians listed under Physician Assistant in Chicago, IL (2024, 651 clinicians with data). Median for this group: 116. Middle half: 41 to 337.
More Part D prescriptions than 60% of clinicians listed under Physician Assistant in Illinois (2024, 2,668 clinicians with data). Median for this group: 203. Middle half: 67 to 595.
Part D drug cost
Close to the middle for clinicians listed under Physician Assistant in Chicago, IL (2024, 651 clinicians with data). Median for this group: $1,977. Middle half: $320 to $34,048.
Close to the middle for clinicians listed under Physician Assistant in Illinois (2024, 2,668 clinicians with data). Median for this group: $3,018. Middle half: $535 to $48,132.
1,446 active clinicians are listed under Physician Assistant with a practice address in Chicago, IL (4,929 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Chicago
17.4% of these 1,446 clinicians have the CMS telehealth indicator.
63.6% of these 1,446 clinicians are listed by CMS as accepting Medicare assignment.
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 increased 120% from 126 in 2021 to 277 in 2024.
- 2021: 126
- 2022: 230
- 2023: 312
- 2024: 277
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Medicare-allowed amount
Medicare-allowed amount increased 111% from $15,211 in 2021 to $32,110 in 2024.
- 2021: $15,211
- 2022: $26,301
- 2023: $36,184
- 2024: $32,110
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Paid by Medicare
Paid by Medicare increased 97% from $11,779 in 2021 to $23,178 in 2024.
- 2021: $11,779
- 2022: $17,286
- 2023: $27,123
- 2024: $23,178
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 188% from 122 in 2021 to 351 in 2024.
- 2021: 122
- 2022: 168
- 2023: 285
- 2024: 351
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30-day fills
30-day fills increased 188% from 122 in 2021 to 352 in 2024.
- 2021: 122
- 2022: 168
- 2023: 285
- 2024: 352
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Part D drug cost
Part D drug cost went from $826 in 2021 to $3,921 in 2024.
- 2021: $826
- 2022: $1,142
- 2023: $2,980
- 2024: $3,921
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2020โ2023 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 โ by Provider and Service data, 2021โ2024; 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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99285
Emergency department visit with high level of medical decision making
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145 | 136 | $403.27 | $136.16 |
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99284
Emergency department visit with moderate level of medical decision making
|
132 | 128 | $277.68 | $93.69 |
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 |
|---|---|---|---|---|---|
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 51 | 219 | $177.35 | 51 |
| Prednisone | Prednisone | 47 | 255 | $54.15 | 45 |
| Ondansetron Odt | Ondansetron | 35 | 174 | $433.98 | 35 |
| Celecoxib | Celecoxib | 35 | 706 | $2,021.70 | 30 |
| Tizanidine Hcl | Tizanidine Hcl | 32 | 181 | $81.31 | 32 |
| Cephalexin | Cephalexin | 31 | 288 | $248.07 | 31 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 25 | 263 | $226.26 | 25 |
| Azithromycin | Azithromycin | 18 | 95 | $93.24 | 18 |
| Doxycycline Hyclate | Doxycycline Hyclate | 15 | 117 | $105.52 | 15 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 14 | 333 | $348.97 | 14 |
| Naproxen | Naproxen | 13 | 225 | $34.16 | 13 |
| Famotidine | Famotidine | 13 | 285 | $42.57 | 13 |
| Levofloxacin | Levofloxacin | 11 | 88 | $38.87 | 11 |
| Furosemide | Furosemide | 11 | 279 | $14.68 | โ |
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: 2021-07-30NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20240521002772
TX
5991033979
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
Dubuque Emergency Physicians Pc
250 Mercy Dr, Dubuque, IA 520017320
Phone: 3195898000
Secondary Practice Locations
259 E Erie St
Chicago, IL 60611
Phone: 3126956868
350 N Grandview Ave
Dubuque, IA 520016388
Phone: 5635821881
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Pathology - Anatomic Pathology & Clinical Pathology
Doctor of Medicine (M.D.)
Anesthesiology
Doctor of Medicine (M.D.)
Emergency Medicine
Doctor of Medicine (M.D.)
Hospitalist
Doctor of Medicine (M.D.)
Radiology - Diagnostic Radiology
Doctor of Medicine (M.D.)
Hospitalist
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Physician Assistant (license number reported to NPPES: IL 085007152)
Registered at 259 E ERIE ST, CHICAGO, IL 60611 (Tel: 3126956868)
Registered at 680 N LAKE SHORE DR, CHICAGO, IL 606114546 (Tel: 3126956868)
NPI status registered as active in NPPES database
Registered at 251 E HURON ST, CHICAGO, IL 606112908 (Tel: 3129262000)
Registered at 1200 S FEDERAL ST UNIT C, CHICAGO, IL 606052746
Recorded as MARK STEINHAUSER, PA-C
Physician Assistant (license number reported to NPPES: None 1163429)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Chicago
- Alexandra Vigilante Chamberlin, PA-C
- Kelsey Mazur
- Kaitilin Mahoney, PA-C
- Ratna Kanumury, PA-C
- Noemi Villanueva, PA
- Megan Hawkins, PA
Mailing Address
680 N Lake Shore Dr
Chicago, IL 606114546
Phone: 3126956868