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2026 NPPES data Medical Physician Assistant NPI 1790329324
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Alex Holsonback

Medical Physician Assistant in Spartanburg, South Carolina.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 40,694 in Medical Physician Assistant, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
89
Medicare Part D claims · 59 beneficiaries · Medical Physician Assistant avg: 1K
MIPS score
96.1/100
▲ 13 pts above national avg 83.5 · Exceptional
Industry payments
$70.89
4 payments · CMS Open Payments (Sunshine Act)
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Alex Holsonback reported a CMS MIPS final score of 96.1/100 - above the 83.5 national average - and filed 89 Medicare Part D claims in 2024.

96.1/100
MIPS score · +13 vs avg
89
Part D claims, 2024
$70.89
industry payments (Sunshine Act)
≥82nd
pct among measured MIPS (lower-bound band)

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.

Federal trust snapshot

What official records show about Alex Holsonback

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1790329324), first enumerated 11/06/2019.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 89 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 96.1/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Industry payment transparency

    $70.89 in reported industry payments (4 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.

    Source: CMS Open Payments

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1790329324 · Medical Physician Assistant

NPI-10 · ENUM-RECENT · TAX-MID · MIPS-ELITE · RX-TRACE · BOOK-LIGHT · PHOTO-FINISH

  • NPI-10 1790329324
  • ENUM-RECENT 2019
  • TAX-MID 41K Medical Physician
  • MIPS-ELITE 96.1/100
  • RX-TRACE 89
  • BOOK-LIGHT 521 in South Carolina
  • PHOTO-FINISH Amanda Dickey · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Alex Holsonback's MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

96 ≥ 82nd percentile 82% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). Below this entry. 90+: 189,403 measured providers (42%). This entry sits in this band. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured providers. 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Alex Holsonback sits

This provider among medical physician assistant peers

Across the 7,147 medical physician assistant providers who report both Medicare Part D prescribing and a MIPS quality score, Alex Holsonback writes more Part D claims than 18% of them and scores higher on MIPS quality than 83% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.949.974.899.8Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 57Alex Holsonback, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 83
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one medical physician assistant peer from a representative sample of 60; the gold marker is Alex Holsonback. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Alex Holsonback?

High performer (top quartile)

NPI registry status

Active

Issued 11/06/2019

NPI 1790329324

Primary specialty

Medical Physician Assistant

Mid-sized

40,694 US NPIs in this specialty

Medicare Part D claims

89 92% vs specialty avg

2024 prescription claims

Specialty avg: 1,139

MIPS final score

96.1/100 12.6 pts vs avg

Exceptional band

vs 83.5 national avg

Specialty distribution in South Carolina

How Medical Physician Assistant compares to other specialties among South Carolina providers

South Carolina providers
Pharmacist6.1%Mental Health Counselor5%Family Nurse Practitioner4.5%Physical Therapist4.5%Behavior Technician4.2%Speech-Language Pathologist3.6%Medical Physician Assistant0.6%
Largest specialties in South Carolina (% of in-state providers)

Medicare quality performance, MIPS

Alex Holsonback's 2023 MIPS final score plotted against the Medical Physician Assistant national average

High performer (top quartile)
MIPS Final Score
96.1/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%96.1%
MIPS final score (Medical Physician Assistant) - 96.1/100 vs national avg 83.5
How MIPS and board certification work

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).

Practice Address

101 E WOOD ST
Spartanburg, SC 29303
(864) 560-6000

Provider Details

NPI 1790329324
Specialty Medical Physician Assistant
Gender Male
NPI Issued 11/06/2019

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

96.0864
Final Score
Measured-score avg: 83.5
92.1728
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

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 Alex Holsonback. Source: openpaymentsdata.cms.gov.

Total received

$71

Largest payer

Corium, LLC

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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

89
Total Claims
$927
Total Drug Cost
59
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
90
Total Day Supply
1,128
Generic Drug Cost
$784
Antibiotic Claims
22

Patient Demographics

Average Patient Age
65.4 years
Avg HCC Risk Score
1.17
Gender Split
59% female / 41% male
Age Distribution
<65: 20, 65-74: N/A, 75-84: 19, 85+: N/A
More Medical Physician Assistant in SC → All providers in South Carolina → Compare specialties →

Medical Physician Assistant Overview

How Alex Holsonback fits within the Medical Physician Assistant landscape nationally.

40,694
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,139
Avg Claims per Provider

Alex Holsonback's 89 claims are below the specialty average of 1,139.

Nationwide Medical Physician Assistant peers with similar MIPS or enrollment year

Two federal-record peer sets for Holsonback, both outside South Carolina so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (96.1 here).

Amanda Dickey 96.1 OH Audrey Gibson 96.1 GA Ryan Langdon 96.1 CT Brenna Leiker 96.1 IL

Same NPPES enumeration year (2019)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Nicole Famiglietti Manhasset, NY Kelsey Enlow Colorado Springs, CO Rachel Anton Cumming, GA Suzanne Hallquist Durham, NC

Nearby Medical 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 Holsonback.

One of 521 Medical Physician Assistant providers enrolled in South Carolina, 5 are shown here.

Rana Abedini
PA-C
Greenville, SC
Omotola Adebayo
NP
Seneca, SC
Amy Alexander
PA-C
Columbia, SC
Dyllan Alfaro
Myrtle Beach, SC
Diana Alford
P.A.
Summerville, SC

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

Frequently Asked Questions

What is Alex Holsonback's specialty? ▼
Alex Holsonback specializes in Medical Physician Assistant and practices in Spartanburg, South Carolina.
How much does Alex Holsonback prescribe under Medicare Part D? ▼
In 2024, Alex Holsonback wrote 89 Medicare Part D claims totaling $927 in drug costs for 59 beneficiaries.
What is Alex Holsonback's Medicare quality score? ▼
Alex Holsonback has a CMS MIPS Final Score of 96.1/100 (Quality: 92.2). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Alex Holsonback located? ▼
Alex Holsonback is located at 101 E WOOD ST, Spartanburg, SC, 29303. Phone: (864) 560-6000.
What is Alex Holsonback's NPI number? ▼
Alex Holsonback's National Provider Identifier (NPI) is 1790329324, issued on 11/06/2019.
How many Medical Physician Assistant providers are there in the US? ▼
There are 40,694 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,139 Medicare Part D claims per year.
Does Alex Holsonback accept Medicare? ▼
Alex Holsonback appears in CMS Medicare data with 89 Part D claims and 59 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Alex Holsonback's credentials? ▼
Alex Holsonback's NPI is 1790329324. 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

View source datasets and methodology notes
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 (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
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 August 2026 (NPPES) / 2024 (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

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.