2026 NPPES data Medical Physician Assistant NPI 1023423613 PA-C
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ADAM PENFOLD, PA-C

Medical Physician Assistant in SALEM, West Virginia. 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
6K
Medicare Part D claims · 554 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$121.99
7 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ADAM PENFOLD, PA-C filed 6,409 Medicare Part D claims in 2023 as a Medical Physician Assistant in SALEM, West Virginia, prescribing 87% generic.

6K
Part D claims, 2023
87%
generic prescribing
$121.99
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.

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

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

6,409 Top 4% higher than 96% 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 ADAM PENFOLD, PA-C?

Quality data not reported

NPI registry status

Active

Issued 06/23/2014

NPI 1023423613

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

6,409 495% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in West Virginia

How Medical Physician Assistant compares to other specialties among West Virginia providers

West Virginia providers

Medical Physician Assistant share within West Virginia

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

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).

ADAM PENFOLD, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 2373 W MAIN ST, SALEM, WV, 26426, with a listed phone of (304) 782-2000. NPI 1023423613 was issued on 06/23/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PENFOLD 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 6,409 prescription claims written by this provider, covering 554 Medicare beneficiaries and totaling roughly $875K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 3.7%. 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

2373 W MAIN ST
SALEM, WV 26426

Provider Details

NPI 1023423613
Specialty Medical Physician Assistant
Credentials PA-C
Gender Male
NPI Issued 06/23/2014

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 ADAM PENFOLD, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$122

Largest payer

Averitas Pharma 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 · Typical

ADAM PENFOLD, PA-C — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 6,409 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.

6,409
Total Claims
$875K
Total Drug Cost
554
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
11,203
Total Day Supply
317,198
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$774K
Generic Drug Cost
$96K
Opioid Claims
234 (3.7% rate)
Antibiotic Claims
251

Patient Demographics

Average Patient Age
67.7 years
Avg HCC Risk Score
1.22
Gender Split
50% female / 50% male
Age Distribution
<65: 163, 65-74: 233, 75-84: 121, 85+: 37

Top Prescribed Drugs (Medicare Part D)

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

What ADAM PENFOLD, PA-C 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
Atorvastatin Calcium
181
Lisinopril
178
Pantoprazole Sodium
172
Amlodipine Besylate
170
Gabapentin
163
Levothyroxine Sodium
142
Trazodone Hcl
140
Tramadol Hcl
135
Montelukast Sodium
130
Fluticasone Propionate
129

* 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 ADAM PENFOLD, 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

ADAM PENFOLD, PA-C's 6,409 claims are above the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in West Virginia

Other clinicians with the same primary specialty enrolled in West Virginia, drawn from the same CMS NPPES roster as PENFOLD.

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

Frequently Asked Questions

What is ADAM PENFOLD, PA-C's specialty?
ADAM PENFOLD, PA-C specializes in Medical Physician Assistant and practices in SALEM, West Virginia. Credentials: PA-C.
How much does ADAM PENFOLD, PA-C prescribe under Medicare Part D?
In 2023, ADAM PENFOLD, PA-C wrote 6,409 Medicare Part D claims totaling $875K in drug costs for 554 beneficiaries.
Where is ADAM PENFOLD, PA-C located?
ADAM PENFOLD, PA-C is located at 2373 W MAIN ST, SALEM, WV, 26426. Phone: (304) 782-2000.
What is ADAM PENFOLD, PA-C's NPI number?
ADAM PENFOLD, PA-C's National Provider Identifier (NPI) is 1023423613, issued on 06/23/2014.
Does ADAM PENFOLD, PA-C prescribe more brand-name or generic drugs?
ADAM PENFOLD, PA-C's prescribing is 13% brand-name and 87% generic drugs by claim count, with $774K in brand drug costs.
Does ADAM PENFOLD, PA-C prescribe opioids?
Yes, ADAM PENFOLD, PA-C had 234 opioid claims in 2023 with an opioid prescribing rate of 3.7%.
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 ADAM PENFOLD, PA-C prescribe most often?
Based on 2023 Medicare Part D data, ADAM PENFOLD, PA-C's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Pantoprazole Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ADAM PENFOLD, PA-C accept Medicare?
ADAM PENFOLD, PA-C appears in CMS Medicare data with 6,409 Part D claims and 554 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ADAM PENFOLD, PA-C's credentials?
ADAM PENFOLD, PA-C's NPI is 1023423613 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