2026 NPPES data Physician Assistant NPI 1598178824 PA
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SHANNON ALLOWAY, PA

Physician Assistant in CHAMBERSBURG, Pennsylvania. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
5K
Medicare Part D claims · 435 beneficiaries · Physician Assistant avg: 790
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: SHANNON ALLOWAY, PA is a Physician Assistant ([object Object]) practicing in CHAMBERSBURG, Pennsylvania with a Medicare Part D prescribing footprint of 5K claims across 435 beneficiaries — 5% brand-name prescribing .

What stands out: SHANNON ALLOWAY, PA filed 4,537 Medicare Part D claims in 2023 across CHAMBERSBURG, Pennsylvania. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

SHANNON ALLOWAY, PA at a glance

Quality data not reported

NPI registry status

Active

Issued 06/04/2014

NPI 1598178824

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

4,537 474% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in Pennsylvania

How Physician Assistant compares to other specialties among Pennsylvania providers

Pennsylvania providers

Physician Assistant share within Pennsylvania

1. Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physician Assistant share within Pennsylvania

Specialty board-certification context

Estimated specialty board-certified rate — Physician Assistant (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Physician Assistant ABMS/AOA estimate

Est. board-certified rate (Physician Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Physician Assistant) — ABMS / AOA estimate

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).

SHANNON ALLOWAY, PA is a Physician Assistant provider practicing in CHAMBERSBURG, Pennsylvania, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA. NPI: 1598178824. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

SHANNON ALLOWAY, PA appears in the CMS NPPES registry as a Physician Assistant provider holding PA credentials at 12 ST PAUL DR STE 208, CHAMBERSBURG, PA, 17201, with a listed phone of (717) 217-6072. NPI 1598178824 was issued on 06/04/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALLOWAY 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 4,537 prescription claims written by this provider, covering 435 Medicare beneficiaries and totaling roughly $218K in drug spend, split 5% brand-name and 95% generic by claim count, with an opioid prescribing rate of 63.3%. 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.

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

12 ST PAUL DR STE 208
CHAMBERSBURG, PA 17201

Provider Details

NPI 1598178824
Specialty Physician Assistant
Credentials PA
Gender Female
NPI Issued 06/04/2014

Hospital and facility affiliations

Facilities where SHANNON ALLOWAY, PA 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.

COMPREHENSIVE REHAB CONSULTANTS PLLC
SALISBURY, MD
PROVIDENCE PAIN MANAGEMENT CENTER, P.A.
SALISBURY, MD

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

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 SHANNON ALLOWAY, PA. To verify SHANNON ALLOWAY, PA'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.

Brand vs generic prescribing mix · Generic-heavy

SHANNON ALLOWAY, PA — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 4,537 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

4,537
Total Claims
$218K
Total Drug Cost
435
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,855
Total Day Supply
140,855
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$119K
Generic Drug Cost
$98K
Opioid Claims
2,873 (63.3% rate)

Patient Demographics

Average Patient Age
64.8 years
Avg HCC Risk Score
1.69
Gender Split
58% female / 42% male
Age Distribution
<65: 180, 65-74: 194, 75-84: 50, 85+: 11

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Oxycodone Hcl
877
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
669
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
603
Gabapentin
472
Pregabalin
332
Tramadol Hcl
257
Cyclobenzaprine Hcl
139
Baclofen
116
Tizanidine Hcl
111
Morphine Sulfate Er
Morphine Sulfate
106

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

Physician Assistant Overview

How SHANNON ALLOWAY, PA fits within the Physician Assistant landscape nationally.

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

SHANNON ALLOWAY, PA's 4,537 claims are above 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 ALLOWAY.

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

Frequently Asked Questions

What is SHANNON ALLOWAY, PA's specialty?
SHANNON ALLOWAY, PA specializes in Physician Assistant and practices in CHAMBERSBURG, Pennsylvania. Credentials: PA.
How much does SHANNON ALLOWAY, PA prescribe under Medicare Part D?
In 2023, SHANNON ALLOWAY, PA wrote 4,537 Medicare Part D claims totaling $218K in drug costs for 435 beneficiaries.
Where is SHANNON ALLOWAY, PA located?
SHANNON ALLOWAY, PA is located at 12 ST PAUL DR STE 208, CHAMBERSBURG, PA, 17201. Phone: (717) 217-6072.
What is SHANNON ALLOWAY, PA's NPI number?
SHANNON ALLOWAY, PA's National Provider Identifier (NPI) is 1598178824, issued on 06/04/2014.
Does SHANNON ALLOWAY, PA prescribe more brand-name or generic drugs?
SHANNON ALLOWAY, PA's prescribing is 5% brand-name and 95% generic drugs by claim count, with $119K in brand drug costs.
Does SHANNON ALLOWAY, PA prescribe opioids?
Yes, SHANNON ALLOWAY, PA had 2,873 opioid claims in 2023 with an opioid prescribing rate of 63.3%.
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 SHANNON ALLOWAY, PA prescribe most often?
Based on 2023 Medicare Part D data, SHANNON ALLOWAY, PA's most frequently prescribed drugs include Oxycodone Hcl, Oxycodone-Acetaminophen, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SHANNON ALLOWAY, PA accept Medicare?
SHANNON ALLOWAY, PA appears in CMS Medicare data with 4,537 Part D claims and 435 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SHANNON ALLOWAY, PA's credentials?
SHANNON ALLOWAY, PA's NPI is 1598178824 with credentials PA. 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.
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