Collin Patrick Duffy , PA-C
Physician Assistant โข Smithtown, NY
994 W Jericho Tpke Ste 104
Smithtown, NY 117873211
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 September 19, 2022; this date does not establish years in practice.
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Published CMS data list 87 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:
- 99204 โ New patient outpatient office visit: 51 service units.
- 99214 โ Established patient outpatient office visit: 36 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 2,387 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 279 prescription fills, including refills.
- Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) โ 253 prescription fills, including refills.
- Gabapentin โ 236 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 34 records in the table ยท Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 80% of clinicians listed under Physician Assistant in Smithtown, NY (2024, 20 clinicians with data). Median for this group: 287. Middle half: 119 to 980.
Fewer Medicare Part B services than 60% of clinicians listed under Physician Assistant in New York (2024, 5,025 clinicians with data). Median for this group: 151. Middle half: 53 to 410.
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 D prescriptions went from 64 in 2022 to 2,387 in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2022โ2024.
Practice Location & Contact Primary Location
994 W Jericho Tpke Ste 104
Smithtown, NY 117873211
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: Timothy D. Groth Md 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
2022
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
67 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 $12,768 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 $10,040 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
2,469 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
$264,801 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: $16,974.60 across 272 records.
By nature of payment (3 largest of 4)
- Food and Beverage: $7,741.80 across 244 records.
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program: $5,669.00 across 4 records.
- Travel and Lodging: $2,776.30 across 19 records.
Reporting-company totals (3 largest of 24)
- Medtronic, Inc.: $10,075.71 across 63 records.
- Boston Scientific Corporation: $942.80 across 14 records.
- Abbott Laboratories: $933.45 across 9 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).
Years since graduation
4 years (graduated 2022)
CMS Doctors and Clinicians data list 2022 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
2022
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)
Collin 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 Collin 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 Smithtown and New York
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 80% of clinicians listed under Physician Assistant in Smithtown, NY (2024, 20 clinicians with data). Median for this group: 287. Middle half: 119 to 980.
Fewer Medicare Part B services than 60% of clinicians listed under Physician Assistant in New York (2024, 5,025 clinicians with data). Median for this group: 151. Middle half: 53 to 410.
Medicare-allowed amount
A lower Medicare-allowed amount than 65% of clinicians listed under Physician Assistant in Smithtown, NY (2024, 20 clinicians with data). Median for this group: $21,019. Middle half: $11,625 to $55,503.
Close to the middle for clinicians listed under Physician Assistant in New York (2024, 5,025 clinicians with data). Median for this group: $12,004. Middle half: $4,378 to $28,196.
Paid by Medicare
A lower Medicare payment amount than 60% of clinicians listed under Physician Assistant in Smithtown, NY (2024, 20 clinicians with data). Median for this group: $16,553. Middle half: $9,035 to $42,253.
Close to the middle for clinicians listed under Physician Assistant in New York (2024, 5,025 clinicians with data). Median for this group: $8,890. Middle half: $3,209 to $20,987.
Medicare Part D prescriptions
More Part D prescriptions than 90% of clinicians listed under Physician Assistant in Smithtown, NY (2024, 33 clinicians with data). Median for this group: 762. Middle half: 78 to 1,756.
More Part D prescriptions than 90% of clinicians listed under Physician Assistant in New York (2024, 6,800 clinicians with data). Median for this group: 172. Middle half: 46 to 640.
Part D drug cost
A higher Part D drug cost than 80% of clinicians listed under Physician Assistant in Smithtown, NY (2024, 33 clinicians with data). Median for this group: $56,458. Middle half: $1,754 to $183,765.
A higher Part D drug cost than 85% of clinicians listed under Physician Assistant in New York (2024, 6,800 clinicians with data). Median for this group: $2,860. Middle half: $381 to $63,975.
62 active clinicians are listed under Physician Assistant with a practice address in Smithtown, NY (15,558 in New York).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Smithtown
6.5% of these 62 clinicians have the CMS telehealth indicator.
58.1% of these 62 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
CMS data for Medicare Part B services are available for 2024 only.
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Medicare-allowed amount
CMS data for Medicare-allowed amount are available for 2024 only.
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Paid by Medicare
CMS data for Medicare payment amount are available for 2024 only.
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 3630% from 64 in 2022 to 2,387 in 2024.
- 2022: 64
- 2023: 1,713
- 2024: 2,387
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30-day fills
30-day fills increased 3757% from 64 in 2022 to 2,469 in 2024.
- 2022: 64
- 2023: 1,743
- 2024: 2,469
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Part D drug cost
Part D drug cost increased 17755% from $1,483 in 2022 to $264,801 in 2024.
- 2022: $1,483
- 2023: $237,798
- 2024: $264,801
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $556.42 in 2022 to $16,974.60 in 2025.
- 2022: $556.42
- 2023: $8,860.75
- 2024: $13,567.50
- 2025: $16,974.60
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): 272 records totaling $16,974.60.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Medtronic, Inc. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
|
INTELLIS ADAPTIVESTIM | General | $2,400.50 |
| Medtronic, Inc. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
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INTELLIS ADAPTIVESTIM | General | $1,816.50 |
| Medtronic, Inc. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
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SYNCHROMEDII | General | $799.00 |
| Medtronic, Inc. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
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INTELLIS ADAPTIVESTIM | General | $653.00 |
| Abbott Laboratories |
Travel and Lodging
In-kind items and services
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PROCLAIM | General | $481.52 |
| Medtronic, Inc. |
Travel and Lodging
In-kind items and services
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SYNCHROMEDII | General | $337.51 |
| Medtronic, Inc. |
Travel and Lodging
In-kind items and services
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SYNCHROMEDII | General | $318.00 |
| Medtronic, Inc. |
Travel and Lodging
In-kind items and services
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INCEPTIV | General | $245.58 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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INTELLIS ADAPTIVESTIM | General | $242.21 |
| Brixton Biosciences, Inc. |
Food and Beverage
In-kind items and services
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Neural Ice | General | $239.32 |
| Nalu Medical, Inc. |
Consulting Fee
Cash or cash equivalent
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Nalu Neurostimulation System | General | $225.00 |
| Medtronic, Inc. |
Travel and Lodging
In-kind items and services
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INTELLIS ADAPTIVESTIM | General | $222.10 |
| Medtronic, Inc. |
Travel and Lodging
In-kind items and services
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INTELLIS ADAPTIVESTIM | General | $219.29 |
| Medtronic, Inc. |
Travel and Lodging
In-kind items and services
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INTELLIS ADAPTIVESTIM | General | $213.32 |
| Medtronic, Inc. |
Travel and Lodging
In-kind items and services
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INTELLIS ADAPTIVESTIM | General | $209.54 |
| Saluda Medical Americas, Inc. |
Food and Beverage
In-kind items and services
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Evoke | General | $194.38 |
| Nalu Medical, Inc. |
Consulting Fee
Cash or cash equivalent
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Nalu Neurostimulation System | General | $187.50 |
| Boston Scientific Corporation |
Food and Beverage
In-kind items and services
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Intracept | General | $175.00 |
| Boston Scientific Corporation |
Food and Beverage
In-kind items and services
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General - Pain Management | General | $174.05 |
| Boston Scientific Corporation |
Food and Beverage
In-kind items and services
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Intracept | General | $171.52 |
| BIOTRONIK NRO, Inc. |
Food and Beverage
In-kind items and services
|
Prospera | General | $170.30 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
INCEPTIV | General | $168.67 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
INCEPTIV | General | $166.41 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
INCEPTIV | General | $160.42 |
| Abbott Laboratories |
Travel and Lodging
In-kind items and services
|
PROCLAIM | General | $156.78 |
(top 25 shown)
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 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 โ by Provider and Service data, 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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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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51 | 51 | $611.22 | $162.74 |
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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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36 | 20 | $459.27 | $124.12 |
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 | 279 | 7,753 | $5,511.44 | 99 |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 253 | 7,029 | $11,013.96 | 124 |
| Gabapentin | Gabapentin | 236 | 7,368 | $2,267.48 | 117 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 151 | 4,167 | $3,512.47 | 65 |
| Pregabalin | Pregabalin | 150 | 4,578 | $5,104.69 | 64 |
| Tizanidine Hcl | Tizanidine Hcl | 120 | 3,742 | $1,127.08 | 58 |
| Lidocaine | Lidocaine | 119 | 3,622 | $16,279.28 | 58 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 95 | 2,804 | $568.47 | 47 |
| Tramadol Hcl | Tramadol Hcl | 79 | 1,906 | $263.53 | 39 |
| Belbuca | Buprenorphine Hcl | 71 | 2,082 | $57,025.99 | 28 |
| Diclofenac Sodium | Diclofenac Sodium | 70 | 2,079 | $11,567.09 | 35 |
| Methocarbamol | Methocarbamol | 66 | 1,909 | $886.18 | 32 |
| Celecoxib | Celecoxib | 66 | 1,853 | $1,720.72 | 36 |
| Oxycontin | Oxycodone Hcl | 52 | 1,528 | $25,744.73 | 15 |
| Movantik | Naloxegol Oxalate | 50 | 1,560 | $20,396.83 | 23 |
| Baclofen | Baclofen | 45 | 1,410 | $526.18 | 20 |
| Ibuprofen | Ibuprofen | 44 | 1,305 | $187.53 | 24 |
| Naloxone Hcl | Naloxone Hcl | 44 | 450 | $2,679.18 | 39 |
| Amitriptyline Hcl | Amitriptyline Hcl | 43 | 1,530 | $403.88 | 17 |
| Duloxetine Hcl | Duloxetine Hcl | 42 | 1,420 | $394.61 | 14 |
| Ztlido | Lidocaine | 38 | 1,245 | $26,745.53 | 33 |
| Xtampza Er | Oxycodone Myristate | 34 | 997 | $28,505.59 | 16 |
| Morphine Sulfate Er | Morphine Sulfate | 32 | 990 | $793.59 | 20 |
| Meloxicam | Meloxicam | 31 | 907 | $93.03 | 21 |
| Fentanyl | Fentanyl | 29 | 855 | $6,020.25 | โ |
(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: 2024-03-15NUCC 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
I20230227002914
NY
1759754419
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
Timothy D. Groth Md Pc
285 Sills Rd, East Patchogue, NY 117724869
Phone: 6315431440
Timothy D. Groth Md Pc
1500 William Floyd Pkwy, Shirley, NY 119671800
Phone: 6315431440
Timothy D. Groth Md Pc
1500 Middle Country Rd, Centereach, NY 117203500
Phone: 6315431440
Timothy D. Groth Md Pc
994 W Jericho Tpke, Smithtown, NY 117873211
Phone: 6315431440
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
AGPCNP, Registered Nurse
Physical Medicine & Rehabilitation
Doctor of Osteopathic Medicine (D.O.)
Nurse Practitioner
Adult-Gerontology Nurse Practitioner
Nurse Practitioner - Adult Health
Nurse Practitioner
Physician Assistant
Physician Assistant
Anesthesiology - Pain Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 994 W JERICHO TPKE STE 104, SMITHTOWN, NY 117873211 (Tel: 6315431440)
Physician Assistant (license number reported to NPPES: NY 029074)
NPI status registered as active in NPPES database
Registered at 994 W JERICHO TPKE STE 104, SMITHTOWN, NY 117873211 (Tel: 6315431440)
Registered at 25 TUTHILL CREEK DR, PATCHOGUE, NY 117726508 (Tel: 6317931259)
Recorded as COLLIN DUFFY, PA-C
Physician Assistant
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Smithtown
- Taylor Abo-Hamzy, PA
- Evana Lodato, PA
- Charles Monanian
- Nicole Volante, MS
- Nancy Russell, PA
- Erica Pacifico, PA-C
Mailing Address
994 W Jericho Tpke Ste 104
Smithtown, NY 117873211
Phone: 6315431440