Tierney Regan Jeffers
Physician Assistant โข Naperville, IL
55 Shuman Blvd Ste 700
Naperville, IL 605638422
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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Tierney Jeffers is listed in NPPES under Physician Assistant.
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NPI assigned on July 17, 2020; this date does not establish years in practice.
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Published CMS data list 34 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:
- 99443 โ Telephone medical discussion with physician: 20 service units.
- 99442 โ Telephone medical discussion with physician: 14 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 172 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:
- Oxycodone Hcl โ 59 prescription fills, including refills.
- Gabapentin โ 54 prescription fills, including refills.
- Tramadol Hcl โ 31 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 5 records in the table ยท Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 90% of clinicians listed under Physician Assistant in Naperville, IL (2024, 61 clinicians with data). Median for this group: 271. Middle half: 91 to 634.
Fewer Medicare Part B services than 85% of 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 101 in 2021 to 34 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2021โ2024.
Practice Location & Contact Primary Location
55 Shuman Blvd Ste 700
Naperville, IL 605638422
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 3 distinct group names: Massachusetts General Physicians Organization Inc; Orthomidwest, Pllc; Rci (Wrs) 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
2020
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
58 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 $3,515 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 $2,359 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
174 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
$1,409 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: $45.81 across 2 records.
By nature of payment
- Food and Beverage: $45.81 across 2 records.
Reporting-company totals
- Astellas Pharma US Inc: $31.09 across 1 record.
- Eli Lilly and Company: $14.72 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
6 years (graduated 2020)
CMS Doctors and Clinicians data list 2020 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
2020
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
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Tierney Jeffers 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 Tierney Jeffers 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 Naperville and Illinois
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 90% of clinicians listed under Physician Assistant in Naperville, IL (2024, 61 clinicians with data). Median for this group: 271. Middle half: 91 to 634.
Fewer Medicare Part B services than 85% of 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 lower Medicare-allowed amount than 90% of clinicians listed under Physician Assistant in Naperville, IL (2024, 61 clinicians with data). Median for this group: $18,468. Middle half: $10,195 to $41,137.
A lower Medicare-allowed amount than 85% 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 lower Medicare payment amount than 90% of clinicians listed under Physician Assistant in Naperville, IL (2024, 61 clinicians with data). Median for this group: $13,897. Middle half: $7,123 to $30,910.
A lower Medicare payment amount than 85% 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
Fewer Part D prescriptions than 60% of clinicians listed under Physician Assistant in Naperville, IL (2024, 69 clinicians with data). Median for this group: 244. Middle half: 120 to 646.
Close to the middle for 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
A lower Part D drug cost than 70% of clinicians listed under Physician Assistant in Naperville, IL (2024, 69 clinicians with data). Median for this group: $4,671. Middle half: $945 to $22,453.
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.
117 active clinicians are listed under Physician Assistant with a practice address in Naperville, IL (4,929 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Naperville
22.2% of these 117 clinicians have the CMS telehealth indicator.
68.4% of these 117 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 decreased 66% from 101 in 2021 to 34 in 2024.
- 2021: 101
- 2022: 195
- 2023: 88
- 2024: 34
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Medicare-allowed amount
Medicare-allowed amount decreased 59% from $8,526 in 2021 to $3,515 in 2024.
- 2021: $8,526
- 2022: $19,435
- 2023: $10,287
- 2024: $3,515
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Paid by Medicare
Paid by Medicare decreased 70% from $7,909 in 2021 to $2,359 in 2024.
- 2021: $7,909
- 2022: $15,985
- 2023: $7,984
- 2024: $2,359
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 173% from 63 in 2021 to 172 in 2024.
- 2021: 63
- 2022: 97
- 2023: 309
- 2024: 172
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30-day fills
30-day fills increased 176% from 63 in 2021 to 174 in 2024.
- 2021: 63
- 2022: 98
- 2023: 310
- 2024: 174
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Part D drug cost
Part D drug cost went from $447 in 2021 to $1,409 in 2024.
- 2021: $447
- 2022: $839
- 2023: $1,835
- 2024: $1,409
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $21.68 in 2022 to $45.81 in 2025.
- 2022: $21.68
- 2024: $155.69
- 2025: $45.81
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 $45.81.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Astellas Pharma US Inc |
Food and Beverage
In-kind items and services
|
Cresemba | General | $31.09 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
|
JAYPIRCA | General | $14.72 |
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 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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99443
Telephone medical discussion with physician, 21-30 minutes
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20 | 19 | $551.00 | $116.99 |
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99442
Telephone medical discussion with physician, 11-20 minutes
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14 | 12 | $391.86 | $83.95 |
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 |
|---|---|---|---|---|---|
| Oxycodone Hcl | Oxycodone Hcl | 59 | 378 | $252.00 | 33 |
| Gabapentin | Gabapentin | 54 | 1,382 | $503.02 | 16 |
| Tramadol Hcl | Tramadol Hcl | 31 | 362 | $140.93 | 16 |
| Mupirocin | Mupirocin | 14 | 208 | $123.67 | 14 |
| Pregabalin | Pregabalin | 14 | 395 | $389.04 | 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: 2025-08-13NUCC 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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20250718001947
IL
2860803335
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
Rci (Wrs) Llc
401 15th St Se, Demotte, IN 463109043
Phone: 2199873073
Rci (Wrs) Llc
6678 Us Hwy 6, Portage, IN 463685117
Phone: 2197620821
Massachusetts General Physicians Organization Inc
55 Fruit St, Boston, MA 021142696
Phone: 6177240287
Orthomidwest, Pllc
770 Beloit Rd, Belvidere, IL 610081745
Phone: 8153989491
Rci (Wrs) Llc
401 15th St Se, Demotte, IN 463109043
Phone: 2199873073
Orthomidwest, Pllc
1611 W Harrison St, Chicago, IL 606124861
Phone: 8776326637
Orthomidwest, Pllc
2450 Wolf Rd, Westchester, IL 601545643
Phone: 8776326637
Rci (Wrs) Llc
50 Nichols St, Hebron, IN 463418774
Phone: 2199965695
Orthomidwest, Pllc
963 N 129th Infantry Dr, Joliet, IL 604353104
Phone: 8776326637
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physical Therapist
Physical Therapist
Orthopaedic Surgery - Adult Reconstructive Orthopaedic Surgery
Doctor of Medicine (M.D.)
Physical Therapist
Doctor of Physical Therapy
Physical Therapist
Physical Therapist
Physician Assistant
Physician Assistant (Certified)
Physical Therapist
Physical Therapist
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: MA PA7758)
Registered at 55 SHUMAN BLVD STE 700, NAPERVILLE, IL 605638422 (Tel: 8776326637)
Registered at PO BOX 735263, CHICAGO, IL 606735263 (Tel: 8776326637)
Physician Assistant (license number reported to NPPES: IL 085011097)
Registered at 55 FRUIT ST, BOSTON, MA 021142621 (Tel: 6177262000)
Registered at 6 YARMOUTH ST APT 1A, BOSTON, MA 021165873 (Tel: 8156850980)
Recorded as TIERNEY JEFFERS
Physician Assistant (license number reported to NPPES: MA PA7758)
NPI status registered as active in NPPES database
Registered at 3650 COLONIAL CT, FORT MYERS, FL 339136636 (Tel: 2392746070)
Registered at 4 EMERSON PL APT TH3, BOSTON, MA 021142287 (Tel: 8156850980)
Recorded as TIERNEY BOTTINO
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Naperville
- Sarah Shafer, PA
- Patricia Craft, PA-C
- Kailie Seneczko, PA-C
- Cara Essling, MMS, PA-C
- Andrea Madden, PA-C
- Sara Dabrowski, PA-C
Mailing Address
Po Box 735263
Chicago, IL 606735263
Phone: 8776326637