2026 NPPES data Physician Assistant NPI 1003847286 PA-C
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TONI BOWYER, PA-C

Physician Assistant in SPARTANBURG, 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 · 266 beneficiaries · Physician Assistant avg: 790
Generic prescribing
66%
generic claims · 34% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$987.5
49 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

TONI BOWYER, PA-C filed 1,416 Medicare Part D claims in 2023 as a Physician Assistant in SPARTANBURG, South Carolina, prescribing 66% generic.

1K
Part D claims, 2023
66%
generic prescribing
$987.5
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.

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

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

1,416 Top 20% higher than 80% 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%). This entry sits in this band. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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 TONI BOWYER, PA-C?

Quality data not reported

NPI registry status

Active

Issued 07/05/2006

NPI 1003847286

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

1,416 79% 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).

TONI BOWYER, PA-C is a Physician Assistant provider practicing in SPARTANBURG, South Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA-C. NPI: 1003847286. 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.

TONI BOWYER, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 98 WILLOW LN, SPARTANBURG, SC, 29307, with a listed phone of (864) 585-5552. NPI 1003847286 was issued on 07/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BOWYER 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 1,416 prescription claims written by this provider, covering 266 Medicare beneficiaries and totaling roughly $606K in drug spend, split 34% brand-name and 66% generic by claim count. 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

98 WILLOW LN
SPARTANBURG, SC 29307

Provider Details

NPI 1003847286
Specialty Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 07/05/2006

Hospital and facility affiliations

Facilities where TONI BOWYER, 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.

ALLERGY PARTNERS PLLC
SPINDALE, NC

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 TONI BOWYER, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$988

Largest payer

GENZYME CORPORATION

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 · Above average

TONI BOWYER, PA-C — brand share 34.0%
Specialty average (est.)

34% brand-name claims vs 66% generic, on 1,416 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.

1,416
Total Claims
$606K
Total Drug Cost
266
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,210
Total Day Supply
61,294
Brand vs Generic
34% brand / 66% generic
Brand Drug Cost
$578K
Generic Drug Cost
$27K
Antibiotic Claims
51

Patient Demographics

Average Patient Age
70.5 years
Avg HCC Risk Score
1.03
Gender Split
76% female / 24% male
Age Distribution
<65: 43, 65-74: 120, 75-84: 88, 85+: 15

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Montelukast Sodium
289
Fluticasone Propionate
160
Albuterol Sulfate Hfa
Albuterol Sulfate
104
Azelastine Hcl
81
Xolair
Omalizumab
58
Prednisone
54
Ipratropium Bromide
47
Dupixent Syringe
Dupilumab
40
Levocetirizine Dihydrochloride
38
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
38

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

Physician Assistant Overview

How TONI BOWYER, PA-C fits within the Physician Assistant landscape nationally.

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

TONI BOWYER, PA-C's 1,416 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 BOWYER.

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

Frequently Asked Questions

What is TONI BOWYER, PA-C's specialty?
TONI BOWYER, PA-C specializes in Physician Assistant and practices in SPARTANBURG, South Carolina. Credentials: PA-C.
How much does TONI BOWYER, PA-C prescribe under Medicare Part D?
In 2023, TONI BOWYER, PA-C wrote 1,416 Medicare Part D claims totaling $606K in drug costs for 266 beneficiaries.
Where is TONI BOWYER, PA-C located?
TONI BOWYER, PA-C is located at 98 WILLOW LN, SPARTANBURG, SC, 29307. Phone: (864) 585-5552.
What is TONI BOWYER, PA-C's NPI number?
TONI BOWYER, PA-C's National Provider Identifier (NPI) is 1003847286, issued on 07/05/2006.
Does TONI BOWYER, PA-C prescribe more brand-name or generic drugs?
TONI BOWYER, PA-C's prescribing is 34% brand-name and 66% generic drugs by claim count, with $578K in brand drug costs.
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 TONI BOWYER, PA-C prescribe most often?
Based on 2023 Medicare Part D data, TONI BOWYER, PA-C's most frequently prescribed drugs include Montelukast Sodium, Fluticasone Propionate, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TONI BOWYER, PA-C accept Medicare?
TONI BOWYER, PA-C appears in CMS Medicare data with 1,416 Part D claims and 266 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TONI BOWYER, PA-C's credentials?
TONI BOWYER, PA-C's NPI is 1003847286 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