2026 NPPES data Medical Physician Assistant NPI 1427336817 PA-C
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MARY BOYCE, PA-C

Medical Physician Assistant in QUEENSTOWN, Maryland. 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
3K
Medicare Part D claims · 448 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$312.11
17 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MARY BOYCE, PA-C filed 2,793 Medicare Part D claims in 2023 as a Medical Physician Assistant in QUEENSTOWN, Maryland, prescribing 91% generic.

3K
Part D claims, 2023
91%
generic prescribing
$312.11
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.

MARY BOYCE, PA-C's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

2,793 Top 12% higher than 88% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about MARY BOYCE, PA-C?

Quality data not reported

NPI registry status

Active

Issued 08/02/2011

NPI 1427336817

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

2,793 159% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Maryland

How Medical Physician Assistant compares to other specialties among Maryland providers

Maryland providers

Medical Physician Assistant share within Maryland

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Medical 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).

MARY BOYCE, PA-C is a Medical Physician Assistant provider practicing in QUEENSTOWN, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA-C. NPI: 1427336817. 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.

MARY BOYCE, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 125 SHOREWAY DR STE 120, QUEENSTOWN, MD, 21658, with a listed phone of (410) 827-4001. NPI 1427336817 was issued on 08/02/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BOYCE 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 2,793 prescription claims written by this provider, covering 448 Medicare beneficiaries and totaling roughly $240K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 1.2%. 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.

Medical Physician Assistant is a mid-sized specialty nationwide, with 40,527 enrolled providers across 55 states and an average of 1,077 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

125 SHOREWAY DR STE 120
QUEENSTOWN, MD 21658

Provider Details

NPI 1427336817
Specialty Medical Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 08/02/2011

Hospital and facility affiliations

Facilities where MARY BOYCE, PA-C 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.

MARYLAND PRIMARY CARE PHYSICIANS, LLC
QUEENSTOWN, 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).

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 MARY BOYCE, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$312

Largest payer

PFIZER 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.

Brand vs generic prescribing mix · Generic-heavy

MARY BOYCE, PA-C — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 2,793 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.

2,793
Total Claims
$240K
Total Drug Cost
448
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,662
Total Day Supply
192,468
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$175K
Generic Drug Cost
$64K
Opioid Claims
34 (1.2% rate)
Antibiotic Claims
81

Patient Demographics

Average Patient Age
73.2 years
Avg HCC Risk Score
1.01
Gender Split
64% female / 36% male
Age Distribution
<65: 34, 65-74: 225, 75-84: 150, 85+: 39

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
154
Lisinopril
115
Levothyroxine Sodium
108
Metoprolol Succinate
82
Simvastatin
77
Amlodipine Besylate
69
Rosuvastatin Calcium
69
Pantoprazole Sodium
64
Losartan Potassium
58
Trazodone Hcl
57

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

Medical Physician Assistant Overview

How MARY BOYCE, PA-C fits within the Medical Physician Assistant landscape nationally.

40,527
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider

MARY BOYCE, PA-C's 2,793 claims are above the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Maryland

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

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

Frequently Asked Questions

What is MARY BOYCE, PA-C's specialty?
MARY BOYCE, PA-C specializes in Medical Physician Assistant and practices in QUEENSTOWN, Maryland. Credentials: PA-C.
How much does MARY BOYCE, PA-C prescribe under Medicare Part D?
In 2023, MARY BOYCE, PA-C wrote 2,793 Medicare Part D claims totaling $240K in drug costs for 448 beneficiaries.
Where is MARY BOYCE, PA-C located?
MARY BOYCE, PA-C is located at 125 SHOREWAY DR STE 120, QUEENSTOWN, MD, 21658. Phone: (410) 827-4001.
What is MARY BOYCE, PA-C's NPI number?
MARY BOYCE, PA-C's National Provider Identifier (NPI) is 1427336817, issued on 08/02/2011.
Does MARY BOYCE, PA-C prescribe more brand-name or generic drugs?
MARY BOYCE, PA-C's prescribing is 9% brand-name and 91% generic drugs by claim count, with $175K in brand drug costs.
Does MARY BOYCE, PA-C prescribe opioids?
Yes, MARY BOYCE, PA-C had 34 opioid claims in 2023 with an opioid prescribing rate of 1.2%.
How many Medical Physician Assistant providers are there in the US?
There are 40,527 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does MARY BOYCE, PA-C prescribe most often?
Based on 2023 Medicare Part D data, MARY BOYCE, PA-C's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARY BOYCE, PA-C accept Medicare?
MARY BOYCE, PA-C appears in CMS Medicare data with 2,793 Part D claims and 448 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARY BOYCE, PA-C's credentials?
MARY BOYCE, PA-C's NPI is 1427336817 with credentials PA-C. 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