Jolyn Marie Kowallis , APN, NP-C
Nurse Practitioner โข Hoffman Estates, IL
1555 Barrington Rd, Doctors Building #3-Suite 1200
Hoffman Estates, IL 601691019
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
NPI assigned on April 28, 2010; this date does not establish years in practice.
-
Published CMS data list 106 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.
-
Published Part B service records, 2024:
- 99233 โ Subsequent hospital care with moderate levelof medical decision making: 54 service units.
- 99232 โ Subsequent hospital care with moderate levelof medical decision making: 41 service units.
- 99214 โ Established patient outpatient office visit: 11 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
-
Published CMS data list 610 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.
-
Published Part D records, 2024:
- Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) โ 126 prescription fills, including refills.
- Anoro Ellipta (Umeclidinium Brm/Vilanterol Tr) โ 102 prescription fills, including refills.
- Stiolto Respimat (Tiotropium Br/Olodaterol Hcl) โ 101 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
-
Fewer Medicare Part B services than 60% of clinicians listed under Nurse Practitioner in Hoffman Estates, IL (2024, 12 clinicians with data). Median for this group: 227. Middle half: 96 to 1,100.
Fewer Medicare Part B services than 70% of clinicians listed under Nurse Practitioner in Illinois (2024, 2,561 clinicians with data). Median for this group: 261. Middle half: 101 to 526.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
-
Medicare Part B services went from 1,038 in 2020 to 106 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
1555 Barrington Rd
Doctors Building #3-Suite 1200
Hoffman Estates, IL 601691019
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 Elk Grove Village, IL. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
74 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 $9,636 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 $7,321 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
763 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
$255,134 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.
Open Payments general payments, program year 2025
All general payments: $42.53 across 2 records.
By nature of payment
- Food and Beverage: $42.53 across 2 records.
Reporting-company totals
- ABBVIE INC.: $22.20 across 1 record.
- Genentech, Inc.: $20.33 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).
NPI first issued
2010
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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)
Jolyn Kowallis 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 Jolyn Kowallis 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 Hoffman Estates and Illinois
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 60% of clinicians listed under Nurse Practitioner in Hoffman Estates, IL (2024, 12 clinicians with data). Median for this group: 227. Middle half: 96 to 1,100.
Fewer Medicare Part B services than 70% of clinicians listed under Nurse Practitioner in Illinois (2024, 2,561 clinicians with data). Median for this group: 261. Middle half: 101 to 526.
Medicare-allowed amount
A lower Medicare-allowed amount than 60% of clinicians listed under Nurse Practitioner in Hoffman Estates, IL (2024, 12 clinicians with data). Median for this group: $18,340. Middle half: $7,160 to $61,416.
A lower Medicare-allowed amount than 70% of clinicians listed under Nurse Practitioner in Illinois (2024, 2,561 clinicians with data). Median for this group: $21,010. Middle half: $8,652 to $42,014.
Paid by Medicare
A lower Medicare payment amount than 60% of clinicians listed under Nurse Practitioner in Hoffman Estates, IL (2024, 12 clinicians with data). Median for this group: $11,986. Middle half: $5,463 to $47,834.
A lower Medicare payment amount than 70% of clinicians listed under Nurse Practitioner in Illinois (2024, 2,561 clinicians with data). Median for this group: $15,151. Middle half: $6,396 to $31,322.
Medicare Part D prescriptions
More Part D prescriptions than 65% of clinicians listed under Nurse Practitioner in Illinois (2024, 2,572 clinicians with data). Median for this group: 259. Middle half: 80 to 930.
Too few clinicians listed under Nurse Practitioner in Hoffman Estates have Medicare Part D data for 2024 to compare.
Part D drug cost
A higher Part D drug cost than 85% of clinicians listed under Nurse Practitioner in Illinois (2024, 2,572 clinicians with data). Median for this group: $10,867. Middle half: $976 to $113,945.
Too few clinicians listed under Nurse Practitioner in Hoffman Estates have Medicare Part D data for 2024 to compare.
17 active clinicians are listed under Nurse Practitioner with a practice address in Hoffman Estates, IL (4,894 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Hoffman Estates
17.6% of these 17 clinicians have the CMS telehealth indicator.
70.6% of these 17 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.
-
Medicare Part B services
Medicare Part B services decreased 90% from 1,038 in 2020 to 106 in 2024.
- 2020: 1,038
- 2021: 808
- 2022: 282
- 2023: 192
- 2024: 106
-
Medicare-allowed amount
Medicare-allowed amount decreased 87% from $76,002 in 2020 to $9,636 in 2024.
- 2020: $76,002
- 2021: $64,740
- 2022: $23,382
- 2023: $18,512
- 2024: $9,636
-
Paid by Medicare
Paid by Medicare decreased 88% from $60,784 in 2020 to $7,321 in 2024.
- 2020: $60,784
- 2021: $51,645
- 2022: $18,028
- 2023: $13,636
- 2024: $7,321
-
Medicare Part D prescriptions
Medicare Part D prescriptions increased 27% from 480 in 2020 to 610 in 2024.
- 2020: 480
- 2021: 381
- 2022: 390
- 2023: 758
- 2024: 610
-
30-day fills
30-day fills increased 34% from 571 in 2020 to 763 in 2024.
- 2020: 571
- 2021: 449
- 2022: 482
- 2023: 951
- 2024: 763
-
Part D drug cost
Part D drug cost increased 80% from $142,056 in 2020 to $255,134 in 2024.
- 2020: $142,056
- 2021: $138,632
- 2022: $151,904
- 2023: $305,801
- 2024: $255,134
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $452.22 in 2021 to $42.53 in 2025.
- 2021: $452.22
- 2022: $1,431.81
- 2023: $2,084.91
- 2024: $1,246.47
- 2025: $42.53
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 ยท 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 โ December 31, 2025): fewer than 11 records totaling $42.53.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
EPKINLY | General | $22.20 |
| Genentech, Inc. |
Food and Beverage
In-kind items and services
|
Tecentriq Hybreza | General | $20.33 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 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, 2017โ2024; 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 |
|---|---|---|---|---|
|
99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
|
54 | 36 | $326.00 | $103.39 |
|
99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
|
41 | 30 | $228.00 | $68.79 |
|
99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
11 | 11 | $307.00 | $112.05 |
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 |
|---|---|---|---|---|---|
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 126 | 4,530 | $96,372.22 | 27 |
| Anoro Ellipta | Umeclidinium Brm/Vilanterol Tr | 102 | 3,780 | $55,286.56 | 17 |
| Stiolto Respimat | Tiotropium Br/Olodaterol Hcl | 101 | 3,930 | $62,277.17 | 20 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 53 | 1,315 | $1,404.48 | 25 |
| Prednisone | Prednisone | 48 | 1,102 | $202.53 | 28 |
| Azithromycin | Azithromycin | 31 | 599 | $166.92 | 26 |
| Ventolin Hfa | Albuterol Sulfate | 27 | 605 | $1,609.14 | โ |
| Breo Ellipta | Fluticasone/Vilanterol | 27 | 1,050 | $13,355.56 | 12 |
| Wixela Inhub | Fluticasone Propion/Salmeterol | 21 | 660 | $1,809.84 | โ |
| Spiriva Handihaler | Tiotropium Bromide | 21 | 870 | $8,728.25 | โ |
| Fluticasone-Salmeterol | Fluticasone Propion/Salmeterol | 18 | 1,200 | $3,196.82 | โ |
| Incruse Ellipta | Umeclidinium Bromide | 12 | 600 | $6,458.45 | โ |
| Bevespi Aerosphere | Glycopyrrolate/Formoterol Fum | 12 | 360 | $4,154.49 | โ |
| Doxycycline Hyclate | Doxycycline Hyclate | 11 | 94 | $111.09 | 11 |
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: 2021-04-05NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NURSE PRACTITIONER
I20160426000023
IL
4688973662
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Secondary Practice Locations
800 Biesterfield Rd Ste 510
Elk Grove Village, IL 600073367
Phone: 8479813660
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Radiology - Diagnostic Radiology
Doctor of Medicine (M.D.)
Radiology - Diagnostic Radiology
Doctor of Medicine (M.D.)
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Anesthesiology
Doctor of Medicine (M.D.)
Radiology - Diagnostic Ultrasound
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Advanced Practice Nurse
Career & Practice History
NPI enumerated April 28, 2010.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Nurse Practitioners in Hoffman Estates
- Danelle Hartman, FNP-BC
- Melissa Mikota, APRN, FNP-BC
- Jessicca Sullivan
- Christine Rodriguez, APRN
- Gulbahar Asranova, FNP
- Judy Schroeder, NP
Mailing Address
1555 Barrington Rd, Doctors Building #3-Suite 1200
Hoffman Estates, IL 601691019
Phone: 8478854100