Kevin A Duffy , PA-C
Physician Assistant • Lansing, MI
4052 Legacy Pkwy, Suite 200
Lansing, MI 489114285
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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NPI assigned on October 26, 2005; this date does not establish years in practice.
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Published CMS data list 2,880 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:
- Hydroxychloroquine Sulfate — 647 prescription fills, including refills.
- Methotrexate (Methotrexate Sodium) — 447 prescription fills, including refills.
- Prednisone — 242 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 38 records in the table · Guide: How to read Medicare Part D prescriber data
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More Part D prescriptions than 80% of clinicians listed under Physician Assistant in Lansing, MI (2024, 93 clinicians with data). Median for this group: 305. Middle half: 80 to 2,200.
More Part D prescriptions than 85% of clinicians listed under Physician Assistant in Michigan (2024, 3,741 clinicians with data). Median for this group: 302. Middle half: 82 to 1,061.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part D prescriptions went from 2,599 in 2020 to 2,880 in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2020–2024.
Practice Location & Contact Primary Location
4052 Legacy Pkwy
Suite 200
Lansing, MI 489114285
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
5,949 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
$2,460,726 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: $4,218.54 across 223 records.
By nature of payment
- Food and Beverage: $3,920.26 across 218 records.
- Education: $298.28 across 5 records.
Reporting-company totals (3 largest of 23)
- UCB, Inc.: $772.79 across 29 records.
- ABBVIE INC.: $640.69 across 42 records.
- Janssen Pharmaceuticals, Inc: $553.61 across 43 records.
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
2005
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, “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)
Kevin Duffy 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 Kevin Duffy 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 Lansing and Michigan
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
More Part D prescriptions than 80% of clinicians listed under Physician Assistant in Lansing, MI (2024, 93 clinicians with data). Median for this group: 305. Middle half: 80 to 2,200.
More Part D prescriptions than 85% of clinicians listed under Physician Assistant in Michigan (2024, 3,741 clinicians with data). Median for this group: 302. Middle half: 82 to 1,061.
Part D drug cost
A higher Part D drug cost than 95% of clinicians listed under Physician Assistant in Lansing, MI (2024, 93 clinicians with data). Median for this group: $8,454. Middle half: $687 to $344,802.
A higher Part D drug cost than 95% of clinicians listed under Physician Assistant in Michigan (2024, 3,741 clinicians with data). Median for this group: $6,107. Middle half: $669 to $117,415.
154 active clinicians are listed under Physician Assistant with a practice address in Lansing, MI (6,989 in Michigan).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Lansing
14.3% of these 154 clinicians have the CMS telehealth indicator.
55.8% of these 154 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 D prescriptions
Medicare Part D prescriptions increased 11% from 2,599 in 2020 to 2,880 in 2024.
- 2020: 2,599
- 2021: 2,588
- 2022: 2,554
- 2023: 2,697
- 2024: 2,880
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30-day fills
30-day fills increased 39% from 4,276 in 2020 to 5,949 in 2024.
- 2020: 4,276
- 2021: 5,002
- 2022: 5,241
- 2023: 5,565
- 2024: 5,949
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Part D drug cost
Part D drug cost increased 14% from $2,152,936 in 2020 to $2,460,726 in 2024.
- 2020: $2,152,936
- 2021: $1,150,372
- 2022: $1,566,864
- 2023: $1,978,644
- 2024: $2,460,726
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Industry payments (Open Payments)
Industry payments (Open Payments) increased 19% from $3,537.05 in 2021 to $4,218.54 in 2025.
- 2021: $3,537.05
- 2022: $5,125.99
- 2023: $5,041.83
- 2024: $5,063.81
- 2025: $4,218.54
Sources: 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): 223 records totaling $4,218.54.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Mallinckrodt Hospital Products Inc. |
Education
In-kind items and services
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ACTHAR | General | $99.99 |
| Janssen Pharmaceuticals, Inc |
Education
In-kind items and services
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TREMFYA | General | $99.00 |
| Janssen Pharmaceuticals, Inc |
Education
In-kind items and services
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TREMFYA | General | $79.99 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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SAPHNELO | General | $54.87 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
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Bimzelx | General | $41.00 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
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Bimzelx | General | $41.00 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
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Bimzelx | General | $39.05 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
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Bimzelx | General | $38.75 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
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TREMFYA | General | $38.24 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
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Bimzelx | General | $37.20 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
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Bimzelx | General | $35.65 |
| Bristol Myers Squibb Company |
Food and Beverage
Cash or cash equivalent
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ORENCIA | General | $34.25 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
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Bimzelx | General | $34.17 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
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COSENTYX | General | $33.24 |
| Bristol Myers Squibb Company |
Food and Beverage
Cash or cash equivalent
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ORENCIA | General | $32.99 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
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Bimzelx | General | $32.80 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
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Bimzelx | General | $32.80 |
| Fresenius Kabi USA, LLC |
Food and Beverage
In-kind items and services
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— | General | $32.79 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
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Bimzelx | General | $31.85 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
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Bimzelx | General | $31.85 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
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Bimzelx | General | $31.54 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
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— | General | $31.01 |
| UCB, Inc. |
Food and Beverage
In-kind items and services
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Bimzelx | General | $30.83 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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TALTZ | General | $30.27 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
|
COSENTYX | General | $29.96 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, released June 30, 2026.
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 |
|---|---|---|---|---|---|
| Hydroxychloroquine Sulfate | Hydroxychloroquine Sulfate | 647 | 47,635 | $53,878.65 | 205 |
| Methotrexate | Methotrexate Sodium | 447 | 29,641 | $19,232.06 | 144 |
| Prednisone | Prednisone | 242 | 11,935 | $2,344.21 | 91 |
| Leflunomide | Leflunomide | 180 | 13,084 | $14,489.08 | 56 |
| Meloxicam | Meloxicam | 115 | 8,765 | $1,115.88 | 46 |
| Sulfasalazine | Sulfasalazine | 108 | 6,145 | $3,732.30 | 28 |
| Methylprednisolone | Methylprednisolone | 102 | 4,903 | $2,585.92 | 41 |
| Tramadol Hcl | Tramadol Hcl | 83 | 2,551 | $636.22 | 16 |
| Celecoxib | Celecoxib | 76 | 4,860 | $2,626.15 | 25 |
| Trazodone Hcl | Trazodone Hcl | 73 | 4,410 | $720.05 | 23 |
| Rinvoq | Upadacitinib | 72 | 2,160 | $445,181.49 | — |
| Mycophenolate Mofetil | Mycophenolate Mofetil | 63 | 4,060 | $9,376.57 | 19 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 58 | 4,238 | $449.46 | 25 |
| Gabapentin | Gabapentin | 43 | 2,790 | $563.73 | 16 |
| Orencia Clickject | Abatacept | 42 | 1,176 | $240,493.44 | — |
| Allopurinol | Allopurinol | 40 | 3,600 | $798.74 | 14 |
| Humira(Cf) Pen | Adalimumab | 40 | 1,288 | $312,248.53 | — |
| Enbrel | Etanercept | 39 | 1,092 | $284,857.76 | — |
| Pilocarpine Hcl | Pilocarpine Hcl | 38 | 1,920 | $3,995.93 | — |
| Alendronate Sodium | Alendronate Sodium | 30 | 2,532 | $496.18 | 13 |
| Enbrel Sureclick | Etanercept | 30 | 840 | $224,496.68 | — |
| Benlysta | Belimumab | 29 | 812 | $136,022.27 | — |
| Actemra Actpen | Tocilizumab | 24 | 672 | $111,827.30 | — |
| Sulfasalazine Dr | Sulfasalazine | 23 | 1,530 | $1,343.13 | — |
| Xeljanz Xr | Tofacitinib Citrate | 23 | 810 | $147,959.21 | — |
(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: 2021-05-04NUCC 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
I20050927000105
MI
6507890746
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine - Rheumatology
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Physician Assistant - Medical
Physician Assistant (Certified)
Internal Medicine - Rheumatology
Doctor of Osteopathic Medicine (D.O.)
Physician Assistant
Physician Assistant (Certified)
Family Medicine
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 4052 LEGACY PKWY, SUITE 200, LANSING, MI 489114285 (Tel: 5172729700)
Registered at 4052 LEGACY PKWY, SUITE 200, LANSING, MI 489114285 (Tel: 5172729700)
NPI status registered as active in NPPES database
Registered at 3394 E. JOLLY RD STE C, LANSING, MI 48910 (Tel: 5172729700)
Registered at 3394 E. JOLLY RD STE C, LANSING, MI 48910 (Tel: 5172729700)
Recorded as KEVIN DUFFY, PAC
Physician Assistant (license number reported to NPPES: MI 5601002818)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Lansing
- Wendy Downey, PA-C, ATC
- Denese Irish, PA
- Anthony Wells, PA
- Elizabeth Pelletier, PA-C
- Margo Gillman, PA-C
- Madyson Brown, PA-C
Mailing Address
4052 Legacy Pkwy, Suite 200
Lansing, MI 489114285
Phone: 5172729700