Patrick G Macdiarmid , PA
Physician Assistant • Buffalo, NY
100 High St # C368
Buffalo, NY 142031126
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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Patrick Macdiarmid is listed in NPPES under Physician Assistant.
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NPI assigned on July 9, 2009; this date does not establish years in practice.
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Published CMS data list 173 Original Medicare Part B services in 2018.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2018. Published rows only; this is not a quality measure.
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Published Part B service records, 2018:
- 99232 — Subsequent hospital care with moderate levelof medical decision making: 86 service units.
- 99214 — Established patient outpatient office visit: 57 service units.
- 93000 — Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report: 30 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2018. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2017 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2018). CPT notice
See the full table · Guide: How to read Medicare Part B data
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Published CMS data list 553 Medicare Part D prescriptions, including refills, in 2018.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2018. Published rows only; this is not a quality measure.
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Published Part D records, 2018:
- Metoprolol Succinate — 69 prescription fills, including refills.
- Atorvastatin Calcium — 46 prescription fills, including refills.
- Lisinopril — 44 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2018. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 23 records in the table · Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 425 in 2017 to 173 in 2018.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017–2018.
Practice Location & Contact Primary Location
100 High St # C368
Buffalo, NY 142031126
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $10,444 in 2018
The total amount Medicare approved for these services in 2018. 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 – by Provider and Service, 2018.
Paid by Medicare
About $7,313 in 2018
The part of the Medicare-allowed amount that Medicare itself paid in 2018, 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 – by Provider and Service, 2018.
30-day fills
1,091 standardized 30-day fills in 2018
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
$82,074 in 2018
The total cost of these prescriptions in 2018, 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, 2018.
Open Payments general payments, program year 2022
All general payments: $49.97 across 2 records.
By nature of payment
- Food and Beverage: $31.97 across 1 record.
- Education: $18.00 across 1 record.
Reporting-company totals
- Abbott Laboratories: $31.97 across 1 record.
- Medtronic, Inc.: $18.00 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 2022 (published June 30, 2026).
NPI first issued
2009
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.
Compared with the same specialty in Buffalo and New York
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Patrick Macdiarmid are from 2018.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Patrick Macdiarmid are from 2018.
488 active clinicians are listed under Physician Assistant with a practice address in Buffalo, NY (15,558 in New York).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Buffalo
8.2% of these 488 clinicians have the CMS telehealth indicator.
57.2% of these 488 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 59% from 425 in 2017 to 173 in 2018.
- 2017: 425
- 2018: 173
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Medicare-allowed amount
Medicare-allowed amount decreased 73% from $38,873 in 2017 to $10,444 in 2018.
- 2017: $38,873
- 2018: $10,444
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Paid by Medicare
Paid by Medicare decreased 75% from $29,058 in 2017 to $7,313 in 2018.
- 2017: $29,058
- 2018: $7,313
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 19% from 466 in 2014 to 553 in 2018.
- 2014: 466
- 2015: 393
- 2016: 376
- 2017: 222
- 2018: 553
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30-day fills
30-day fills increased 133% from 468 in 2014 to 1,091 in 2018.
- 2014: 468
- 2015: 393
- 2016: 376
- 2017: 240
- 2018: 1,091
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Part D drug cost
Part D drug cost increased 1534% from $5,022 in 2014 to $82,074 in 2018.
- 2014: $5,022
- 2015: $4,338
- 2016: $3,900
- 2017: $2,940
- 2018: $82,074
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2022 only.
Sources: CMS Medicare Physician & Other Practitioners (2018), CMS Medicare Part D Prescribers (2018), CMS Open Payments (2022), 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 2022 (payments made January 1 – December 31, 2022): fewer than 11 records totaling $49.97.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
QUADRA ASSURA | General | $31.97 |
| Medtronic, Inc. |
Education
In-kind items and services
|
— | General | $18.00 |
Source: CMS Open Payments, program year 2022, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2017 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 – by Provider and Service data, 2017–2018; 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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99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
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86 | 64 | $125.00 | $58.59 |
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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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57 | 56 | $190.00 | $87.60 |
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93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
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30 | 30 | $40.00 | $13.75 |
Source: CMS Part B by Provider and Service, 2018; 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 2018.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Metoprolol Succinate | Metoprolol Succinate | 69 | 3,905 | $2,097.78 | 26 |
| Atorvastatin Calcium | Atorvastatin Calcium | 46 | 2,880 | $801.99 | 14 |
| Lisinopril | Lisinopril | 44 | 2,040 | $324.59 | — |
| Carvedilol | Carvedilol | 43 | 2,970 | $405.59 | 12 |
| Furosemide | Furosemide | 39 | 1,696 | $145.58 | 12 |
| Brilinta | Ticagrelor | 37 | 2,520 | $28,148.39 | — |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 25 | 1,650 | $525.28 | — |
| Spironolactone | Spironolactone | 24 | 1,920 | $271.77 | — |
| Xarelto | Rivaroxaban | 21 | 1,397 | $18,489.26 | — |
| Cartia Xt | Diltiazem Hcl | 20 | 1,200 | $553.67 | — |
| Metoprolol Tartrate | Metoprolol Tartrate | 17 | 1,230 | $306.40 | — |
| Simvastatin | Simvastatin | 17 | 1,170 | $148.04 | — |
| Amlodipine Besylate | Amlodipine Besylate | 17 | 990 | $112.44 | — |
| Clopidogrel | Clopidogrel Bisulfate | 17 | 1,410 | $198.88 | — |
| Eliquis | Apixaban | 16 | 478 | $6,842.68 | — |
| Hydralazine Hcl | Hydralazine Hcl | 15 | 470 | $171.76 | — |
| Entresto | Sacubitril/Valsartan | 14 | 405 | $6,336.66 | — |
| Pradaxa | Dabigatran Etexilate Mesylate | 13 | 570 | $7,352.96 | — |
| Warfarin Sodium | Warfarin Sodium | 12 | 682 | $148.40 | — |
| Nitroglycerin | Nitroglycerin | 12 | 321 | $509.56 | — |
| Ranexa | Ranolazine | 12 | 360 | $6,740.30 | — |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 12 | 1,080 | $778.19 | — |
| Dilt-Xr | Diltiazem Hcl | 11 | 990 | $663.50 | — |
Source: CMS Part D by Provider and Drug, 2018; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
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.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Doctor of Medicine (M.D.)
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Doctor of Medicine (M.D.)
Physician Assistant - Surgical
Physician Assistant
Specialist
Doctor of Medicine (M.D.)
Nurse Practitioner
Nurse Practitioner
Nurse Practitioner - Acute Care
Nurse Practitioner
Career & Practice History
NPI enumerated July 09, 2009.
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 Physician Assistants in Buffalo
- Megan Wrest
- Virginia Hart, NURSE PRACITIONER
- Jenny Mai, PA-C
- Nazim Khan, PA-C
- Cristi Wedgwood, RPAC
- Donna Jaworski, PA
Mailing Address
100 High St # C368
Buffalo, NY 142031126
Phone: 7168592247