2026 NPPES data Physician Assistant NPI 1104092204 P.A.
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MICHAEL ATCHLEY, P.A.

Physician Assistant in WEST COLUMBIA, South Carolina. 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
1K
Medicare Part D claims · 341 beneficiaries · Physician Assistant avg: 790
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$223.8
11 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MICHAEL ATCHLEY, P.A. is a Physician Assistant ([object Object]) practicing in WEST COLUMBIA, South Carolina with a Medicare Part D prescribing footprint of 1K claims across 341 beneficiaries — 10% brand-name prescribing . Industry payments of $223.8 across 11 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MICHAEL ATCHLEY, P.A. filed 1,048 Medicare Part D claims in 2023 across WEST COLUMBIA, South Carolina. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

MICHAEL ATCHLEY, P.A. at a glance

Quality data not reported

NPI registry status

Active

Issued 05/08/2008

NPI 1104092204

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

1,048 33% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in South Carolina

How Physician Assistant compares to other specialties among South Carolina providers

South Carolina providers

Physician Assistant share within South Carolina

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

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).

MICHAEL ATCHLEY, P.A. is a Physician Assistant provider practicing in WEST COLUMBIA, South Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: P.A.. NPI: 1104092204. 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.

MICHAEL ATCHLEY, P.A. appears in the CMS NPPES registry as a Physician Assistant provider holding P.A. credentials at 176 MCSWAIN DR, WEST COLUMBIA, SC, 29169, with a listed phone of (843) 797-3636. NPI 1104092204 was issued on 05/08/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ATCHLEY 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 1,048 prescription claims written by this provider, covering 341 Medicare beneficiaries and totaling roughly $100K in drug spend, split 10% brand-name and 90% generic by claim count, with an opioid prescribing rate of 67.5%. 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.

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

176 MCSWAIN DR
WEST COLUMBIA, SC 29169

Provider Details

NPI 1104092204
Specialty Physician Assistant
Credentials P.A.
Gender Male
NPI Issued 05/08/2008

Hospital and facility affiliations

Facilities where MICHAEL ATCHLEY, P.A. 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.

TRIDENT PAIN CENTER LLC
WEST COLUMBIA, SC

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 MICHAEL ATCHLEY, P.A.. Source: openpaymentsdata.cms.gov.

Total received

$224

Largest payer

ABBVIE 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

MICHAEL ATCHLEY, P.A. — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 1,048 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.

1,048
Total Claims
$100K
Total Drug Cost
341
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,223
Total Day Supply
35,384
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$62K
Generic Drug Cost
$38K
Opioid Claims
707 (67.5% rate)

Patient Demographics

Average Patient Age
64.6 years
Avg HCC Risk Score
1.77
Gender Split
66% female / 34% male
Age Distribution
<65: 150, 65-74: 130, 75-84: N/A, 85+: N/A

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-Acetaminophen
Oxycodone Hcl/Acetaminophen
234
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
185
Oxycodone Hcl
68
Gabapentin
52
Tramadol Hcl
44
Pregabalin
43
Morphine Sulfate Er
Morphine Sulfate
40
Tizanidine Hcl
33
Tramadol Hcl Er
Tramadol Hcl
27
Diclofenac Sodium
23

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

Physician Assistant Overview

How MICHAEL ATCHLEY, P.A. fits within the Physician Assistant landscape nationally.

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

MICHAEL ATCHLEY, P.A.'s 1,048 claims are above the specialty average of 790.

Nearby Physician Assistant Providers in South Carolina

Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as ATCHLEY.

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

Frequently Asked Questions

What is MICHAEL ATCHLEY, P.A.'s specialty?
MICHAEL ATCHLEY, P.A. specializes in Physician Assistant and practices in WEST COLUMBIA, South Carolina. Credentials: P.A..
How much does MICHAEL ATCHLEY, P.A. prescribe under Medicare Part D?
In 2023, MICHAEL ATCHLEY, P.A. wrote 1,048 Medicare Part D claims totaling $100K in drug costs for 341 beneficiaries.
Where is MICHAEL ATCHLEY, P.A. located?
MICHAEL ATCHLEY, P.A. is located at 176 MCSWAIN DR, WEST COLUMBIA, SC, 29169. Phone: (843) 797-3636.
What is MICHAEL ATCHLEY, P.A.'s NPI number?
MICHAEL ATCHLEY, P.A.'s National Provider Identifier (NPI) is 1104092204, issued on 05/08/2008.
Does MICHAEL ATCHLEY, P.A. prescribe more brand-name or generic drugs?
MICHAEL ATCHLEY, P.A.'s prescribing is 10% brand-name and 90% generic drugs by claim count, with $62K in brand drug costs.
Does MICHAEL ATCHLEY, P.A. prescribe opioids?
Yes, MICHAEL ATCHLEY, P.A. had 707 opioid claims in 2023 with an opioid prescribing rate of 67.5%.
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 MICHAEL ATCHLEY, P.A. prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL ATCHLEY, P.A.'s most frequently prescribed drugs include Oxycodone-Acetaminophen, Hydrocodone-Acetaminophen, Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL ATCHLEY, P.A. accept Medicare?
MICHAEL ATCHLEY, P.A. appears in CMS Medicare data with 1,048 Part D claims and 341 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL ATCHLEY, P.A.'s credentials?
MICHAEL ATCHLEY, P.A.'s NPI is 1104092204 with credentials P.A.. 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