2026 NPPES data Physician Assistant NPI 1578999777 PAC
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Vanessa Troyer, PAC

Physician Assistant in Allentown, Pennsylvania. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 149,975 in Physician Assistant, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration — see our methodology.

Federal data — no proprietary rating. We show these CMS records as-is — no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
620
Medicare Part D claims · 194 beneficiaries · Physician Assistant avg: 790
MIPS score
95.6/100
▲ 13 pts above national avg 83.1 · Exceptional
Industry payments
$113.4
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Vanessa Troyer, PAC reported a CMS MIPS final score of 95.6/100 — above the 83.1 national average — and filed 620 Medicare Part D claims in 2023.

95.6/100
MIPS score · +13 vs avg
620
Part D claims, 2023
$113.4
industry payments (Sunshine Act)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

Vanessa Troyer, PAC's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

96 Top 21% higher than 79% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Vanessa Troyer, PAC sits

This provider among physician assistant peers

Across the 27,054 physician assistant providers who report both Medicare Part D prescribing and a MIPS quality score, Vanessa Troyer, PAC writes more Part D claims than 73% of them and scores higher on MIPS quality than 82% — placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume — percentile in specialtyMIPS quality — percentilePart D claim volume — percentile in specialty: 35 · MIPS quality — percentile: 35Part D claim volume — percentile in specialty: 58 · MIPS quality — percentile: 5Part D claim volume — percentile in specialty: 53 · MIPS quality — percentile: 13Part D claim volume — percentile in specialty: 98 · MIPS quality — percentile: 10Part D claim volume — percentile in specialty: 73 · MIPS quality — percentile: 95Part D claim volume — percentile in specialty: 0 · MIPS quality — percentile: 43Part D claim volume — percentile in specialty: 97 · MIPS quality — percentile: 50Part D claim volume — percentile in specialty: 67 · MIPS quality — percentile: 33Part D claim volume — percentile in specialty: 48 · MIPS quality — percentile: 70Part D claim volume — percentile in specialty: 88 · MIPS quality — percentile: 38Part D claim volume — percentile in specialty: 83 · MIPS quality — percentile: 65Part D claim volume — percentile in specialty: 68 · MIPS quality — percentile: 77Part D claim volume — percentile in specialty: 23 · MIPS quality — percentile: 62Part D claim volume — percentile in specialty: 25 · MIPS quality — percentile: 72Part D claim volume — percentile in specialty: 60 · MIPS quality — percentile: 20Part D claim volume — percentile in specialty: 28 · MIPS quality — percentile: 32Part D claim volume — percentile in specialty: 55 · MIPS quality — percentile: 15Part D claim volume — percentile in specialty: 7 · MIPS quality — percentile: 48Part D claim volume — percentile in specialty: 87 · MIPS quality — percentile: 58Part D claim volume — percentile in specialty: 30 · MIPS quality — percentile: 98Part D claim volume — percentile in specialty: 15 · MIPS quality — percentile: 80Part D claim volume — percentile in specialty: 70 · MIPS quality — percentile: 12Part D claim volume — percentile in specialty: 95 · MIPS quality — percentile: 57Part D claim volume — percentile in specialty: 75 · MIPS quality — percentile: 28Part D claim volume — percentile in specialty: 7 · MIPS quality — percentile: 97Part D claim volume — percentile in specialty: 27 · MIPS quality — percentile: 75Part D claim volume — percentile in specialty: 10 · MIPS quality — percentile: 0Part D claim volume — percentile in specialty: 57 · MIPS quality — percentile: 17Part D claim volume — percentile in specialty: 12 · MIPS quality — percentile: 80Part D claim volume — percentile in specialty: 90 · MIPS quality — percentile: 42Part D claim volume — percentile in specialty: 42 · MIPS quality — percentile: 23Part D claim volume — percentile in specialty: 38 · MIPS quality — percentile: 83Part D claim volume — percentile in specialty: 40 · MIPS quality — percentile: 87Part D claim volume — percentile in specialty: 50 · MIPS quality — percentile: 88Part D claim volume — percentile in specialty: 32 · MIPS quality — percentile: 98Part D claim volume — percentile in specialty: 13 · MIPS quality — percentile: 68Part D claim volume — percentile in specialty: 43 · MIPS quality — percentile: 3Part D claim volume — percentile in specialty: 63 · MIPS quality — percentile: 67Part D claim volume — percentile in specialty: 72 · MIPS quality — percentile: 22Part D claim volume — percentile in specialty: 3 · MIPS quality — percentile: 47Part D claim volume — percentile in specialty: 52 · MIPS quality — percentile: 60Part D claim volume — percentile in specialty: 80 · MIPS quality — percentile: 18Part D claim volume — percentile in specialty: 2 · MIPS quality — percentile: 45Part D claim volume — percentile in specialty: 85 · MIPS quality — percentile: 37Part D claim volume — percentile in specialty: 77 · MIPS quality — percentile: 92Part D claim volume — percentile in specialty: 22 · MIPS quality — percentile: 63Part D claim volume — percentile in specialty: 33 · MIPS quality — percentile: 55Part D claim volume — percentile in specialty: 37 · MIPS quality — percentile: 8Part D claim volume — percentile in specialty: 100 · MIPS quality — percentile: 30Part D claim volume — percentile in specialty: 78 · MIPS quality — percentile: 2Part D claim volume — percentile in specialty: 65 · MIPS quality — percentile: 23Part D claim volume — percentile in specialty: 5 · MIPS quality — percentile: 23Part D claim volume — percentile in specialty: 45 · MIPS quality — percentile: 7Part D claim volume — percentile in specialty: 82 · MIPS quality — percentile: 88Part D claim volume — percentile in specialty: 92 · MIPS quality — percentile: 78Part D claim volume — percentile in specialty: 20 · MIPS quality — percentile: 53Part D claim volume — percentile in specialty: 47 · MIPS quality — percentile: 52Part D claim volume — percentile in specialty: 93 · MIPS quality — percentile: 85Part D claim volume — percentile in specialty: 17 · MIPS quality — percentile: 72Part D claim volume — percentile in specialty: 18 · MIPS quality — percentile: 40Vanessa Troyer, PAC — Part D claim volume — percentile in specialty: 73 · MIPS quality — percentile: 82
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one physician assistant peer from a representative sample of 60; the gold marker is Vanessa Troyer, PAC. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Vanessa Troyer, PAC?

High performer (top quartile)

NPI registry status

Active

Issued 09/19/2013

NPI 1578999777

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

620 22% vs specialty avg

2023 prescription claims

Specialty avg: 790

MIPS final score

95.6/100 12.5 pts vs avg

Exceptional band

vs 83.1 national avg

Specialty distribution in Pennsylvania

How Physician Assistant compares to other specialties among Pennsylvania providers

Pennsylvania providers

Largest specialties in Pennsylvania (% of in-state providers)

Student in an Organized Health Care Education/Training Program — 5.6%Student in an Organized Health Care Education/Training Program5.6%Pharmacist — 5%Pharmacist5%Physical Therapist — 4.9%Physical Therapist4.9%Mental Health Counselor — 3.9%Mental Health Counselor3.9%Internal Medicine Physician — 3.3%Internal Medicine Physician3.3%Professional Counselor — 3.2%Professional Counselor3.2%Physician Assistant — 3%Physician Assistant3%
Largest specialties in Pennsylvania (% of in-state providers)

Medicare quality performance — MIPS

Vanessa Troyer, PAC's 2023 MIPS final score plotted against the Physician Assistant national average

High performer (top quartile)
MIPS Final Score
95.6/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Physician Assistant) — 95.6/100 vs national avg 83.1

0%100%National avg83%95.6%
MIPS final score (Physician Assistant) — 95.6/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Vanessa Troyer, PAC appears in the CMS NPPES registry as a Physician Assistant provider holding PAC credentials at 1901 HAMILTON ST, Allentown, PA, 18104, with a listed phone of (610) 628-7920. NPI 1578999777 was issued on 09/19/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Troyer most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 620 prescription claims written by this provider, covering 194 Medicare beneficiaries and totaling roughly $42K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 95.6/100 for the 2023 performance year (Quality 80.6), compared with the national average of 83.1.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1901 HAMILTON ST
Allentown, PA 18104

Provider Details

NPI 1578999777
Specialty Physician Assistant
Credentials PAC
Gender Female
NPI Issued 09/19/2013

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

95.6426
Final Score
Avg: 83.1
80.5735
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where Vanessa Troyer, PAC bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

St Lukes Physician Group Inc
Quakertown, PA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Vanessa Troyer, PAC. Source: openpaymentsdata.cms.gov.

Total received

$113

Largest payer

Boehringer Ingelheim Pharmaceuticals, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — Pennsylvania PA-BOM 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~45K Pennsylvania medical licensees in 2023 — they are NOT specific to Vanessa Troyer, PAC. To verify Vanessa Troyer, PAC's current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases

PA-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

620
Total Claims
$42K
Total Drug Cost
194
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,401
Total Day Supply
41,653
Generic Drug Cost
$22K

Patient Demographics

Average Patient Age
72.4 years
Avg HCC Risk Score
4.03
Gender Split
44% female / 56% male
Age Distribution
<65: 37, 65-74: 73, 75-84: 60, 85+: 24

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Vanessa Troyer, PAC prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Amlodipine Besylate
60
Torsemide
44
Spironolactone
35
Lisinopril
33
Hydralazine Hcl
32
Furosemide
31
Losartan Potassium
30
Allopurinol
28
Sevelamer Carbonate
25
Calcitriol
20

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Physician Assistant Overview

How Vanessa Troyer, PAC fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

Vanessa Troyer, PAC's 620 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in Pennsylvania

Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as Troyer.

Compare Physician Assistant nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Pennsylvania medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Physician Assistant peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Vanessa Troyer, PAC's specialty?
Vanessa Troyer, PAC specializes in Physician Assistant and practices in Allentown, Pennsylvania. Credentials: PAC.
How much does Vanessa Troyer, PAC prescribe under Medicare Part D?
In 2023, Vanessa Troyer, PAC wrote 620 Medicare Part D claims totaling $42K in drug costs for 194 beneficiaries.
What is Vanessa Troyer, PAC's Medicare quality score?
Vanessa Troyer, PAC has a CMS MIPS Final Score of 95.6/100 (Quality: 80.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Vanessa Troyer, PAC located?
Vanessa Troyer, PAC is located at 1901 HAMILTON ST, Allentown, PA, 18104. Phone: (610) 628-7920.
What is Vanessa Troyer, PAC's NPI number?
Vanessa Troyer, PAC's National Provider Identifier (NPI) is 1578999777, issued on 09/19/2013.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does Vanessa Troyer, PAC prescribe most often?
Based on 2023 Medicare Part D data, Vanessa Troyer, PAC's most frequently prescribed drugs include Amlodipine Besylate, Torsemide, Spironolactone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Vanessa Troyer, PAC accept Medicare?
Vanessa Troyer, PAC appears in CMS Medicare data with 620 Part D claims and 194 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Vanessa Troyer, PAC's credentials?
Vanessa Troyer, PAC's NPI is 1578999777 with credentials PAC. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the PlainDoctor editorial team.