2026 NPPES data Medical Physician Assistant NPI 1154553212 PA-C
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MICHAEL WALKER, PA-C

Medical Physician Assistant in WELCH, 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
11K
Medicare Part D claims · 639 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.0K
61 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MICHAEL WALKER, PA-C filed 11,065 Medicare Part D claims in 2023 as a Medical Physician Assistant in WELCH, West Virginia, prescribing 83% generic.

11K
Part D claims, 2023
83%
generic prescribing
$1.0K
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.

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

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

11,065 Top 2% higher than 98% 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 MICHAEL WALKER, PA-C?

Quality data not reported

NPI registry status

Active

Issued 08/21/2009

NPI 1154553212

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

11,065 927% 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).

MICHAEL WALKER, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 19771 COAL HERITAGE RD, WELCH, WV, 24801, with a listed phone of (304) 436-6650. NPI 1154553212 was issued on 08/21/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WALKER 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 11,065 prescription claims written by this provider, covering 639 Medicare beneficiaries and totaling roughly $1.4 million in drug spend, split 17% brand-name and 83% generic by claim count, with an opioid prescribing rate of 0.5%. 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

19771 COAL HERITAGE RD
WELCH, WV 24801

Provider Details

NPI 1154553212
Specialty Medical Physician Assistant
Credentials PA-C
Gender Male
NPI Issued 08/21/2009

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 MICHAEL WALKER, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$1.0K

Largest payer

AstraZeneca Pharmaceuticals LP

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

MICHAEL WALKER, PA-C — brand share 17.0%
Specialty average (est.)

17% brand-name claims vs 83% generic, on 11,065 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.

11,065
Total Claims
$1.4M
Total Drug Cost
639
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
16,147
Total Day Supply
452,524
Brand vs Generic
17% brand / 83% generic
Brand Drug Cost
$1.2M
Generic Drug Cost
$139K
Opioid Claims
58 (0.5% rate)
Antibiotic Claims
537

Patient Demographics

Average Patient Age
67.8 years
Avg HCC Risk Score
1.05
Gender Split
49% female / 51% male
Age Distribution
<65: 175, 65-74: 315, 75-84: 112, 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 MICHAEL WALKER, 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
490
Omeprazole
389
Lisinopril
363
Famotidine
317
Gabapentin
285
Metformin Hcl
262
Pantoprazole Sodium
232
Jardiance
Empagliflozin
231
Levothyroxine Sodium
202
Ozempic
Semaglutide
201

* 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 MICHAEL WALKER, 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

MICHAEL WALKER, PA-C's 11,065 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 WALKER.

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

Frequently Asked Questions

What is MICHAEL WALKER, PA-C's specialty?
MICHAEL WALKER, PA-C specializes in Medical Physician Assistant and practices in WELCH, West Virginia. Credentials: PA-C.
How much does MICHAEL WALKER, PA-C prescribe under Medicare Part D?
In 2023, MICHAEL WALKER, PA-C wrote 11,065 Medicare Part D claims totaling $1.4M in drug costs for 639 beneficiaries.
Where is MICHAEL WALKER, PA-C located?
MICHAEL WALKER, PA-C is located at 19771 COAL HERITAGE RD, WELCH, WV, 24801. Phone: (304) 436-6650.
What is MICHAEL WALKER, PA-C's NPI number?
MICHAEL WALKER, PA-C's National Provider Identifier (NPI) is 1154553212, issued on 08/21/2009.
Does MICHAEL WALKER, PA-C prescribe more brand-name or generic drugs?
MICHAEL WALKER, PA-C's prescribing is 17% brand-name and 83% generic drugs by claim count, with $1.2M in brand drug costs.
Does MICHAEL WALKER, PA-C prescribe opioids?
Yes, MICHAEL WALKER, PA-C had 58 opioid claims in 2023 with an opioid prescribing rate of 0.5%.
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 MICHAEL WALKER, PA-C prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL WALKER, PA-C's most frequently prescribed drugs include Atorvastatin Calcium, Omeprazole, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL WALKER, PA-C accept Medicare?
MICHAEL WALKER, PA-C appears in CMS Medicare data with 11,065 Part D claims and 639 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL WALKER, PA-C's credentials?
MICHAEL WALKER, PA-C's NPI is 1154553212 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