2026 NPPES data Physician Assistant NPI 1487711347 PAC
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Joleen Volz, PAC

Physician Assistant in Corsicana, Texas. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 149,975 in 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
880
Medicare Part D claims · 303 beneficiaries · Physician Assistant avg: 790
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.1 · Exceptional
Industry payments
$10.7K
124 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Joleen Volz, PAC reported a CMS MIPS final score of 100/100 — above the 83.1 national average — and filed 880 Medicare Part D claims in 2023.

100/100
MIPS score · +17 vs avg
880
Part D claims, 2023
82%
generic prescribing
$10.7K
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.

Joleen Volz, PAC's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

100 Top 7% higher than 93% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored 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.

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

Where Joleen Volz, PAC sits

This provider among physician assistant peers

Across the 27,054 physician assistant providers who report both Medicare Part D prescribing and a MIPS quality score, Joleen Volz, PAC writes more Part D claims than 80% of them and scores higher on MIPS quality than 93% — placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume — percentile in specialtyMIPS quality — percentilePart D claim volume — percentile in specialty: 35 · MIPS quality — percentile: 35Part D claim volume — percentile in specialty: 58 · MIPS quality — percentile: 5Part D claim volume — percentile in specialty: 53 · MIPS quality — percentile: 13Part D claim volume — percentile in specialty: 98 · MIPS quality — percentile: 10Part D claim volume — percentile in specialty: 72 · MIPS quality — percentile: 93Part D claim volume — percentile in specialty: 0 · MIPS quality — percentile: 43Part D claim volume — percentile in specialty: 97 · MIPS quality — percentile: 50Part D claim volume — percentile in specialty: 65 · MIPS quality — percentile: 33Part D claim volume — percentile in specialty: 48 · MIPS quality — percentile: 70Part D claim volume — percentile in specialty: 88 · MIPS quality — percentile: 38Part D claim volume — percentile in specialty: 83 · MIPS quality — percentile: 65Part D claim volume — percentile in specialty: 67 · MIPS quality — percentile: 77Part D claim volume — percentile in specialty: 23 · MIPS quality — percentile: 62Part D claim volume — percentile in specialty: 25 · MIPS quality — percentile: 72Part D claim volume — percentile in specialty: 60 · MIPS quality — percentile: 20Part D claim volume — percentile in specialty: 28 · MIPS quality — percentile: 32Part D claim volume — percentile in specialty: 55 · MIPS quality — percentile: 15Part D claim volume — percentile in specialty: 7 · MIPS quality — percentile: 48Part D claim volume — percentile in specialty: 87 · MIPS quality — percentile: 58Part D claim volume — percentile in specialty: 30 · MIPS quality — percentile: 97Part D claim volume — percentile in specialty: 15 · MIPS quality — percentile: 80Part D claim volume — percentile in specialty: 68 · MIPS quality — percentile: 12Part D claim volume — percentile in specialty: 95 · MIPS quality — percentile: 57Part D claim volume — percentile in specialty: 73 · MIPS quality — percentile: 28Part D claim volume — percentile in specialty: 7 · MIPS quality — percentile: 95Part D claim volume — percentile in specialty: 27 · MIPS quality — percentile: 75Part D claim volume — percentile in specialty: 10 · MIPS quality — percentile: 0Part D claim volume — percentile in specialty: 57 · MIPS quality — percentile: 17Part D claim volume — percentile in specialty: 12 · MIPS quality — percentile: 80Part D claim volume — percentile in specialty: 90 · MIPS quality — percentile: 42Part D claim volume — percentile in specialty: 42 · MIPS quality — percentile: 23Part D claim volume — percentile in specialty: 38 · MIPS quality — percentile: 83Part D claim volume — percentile in specialty: 40 · MIPS quality — percentile: 87Part D claim volume — percentile in specialty: 50 · MIPS quality — percentile: 88Part D claim volume — percentile in specialty: 32 · MIPS quality — percentile: 97Part D claim volume — percentile in specialty: 13 · MIPS quality — percentile: 68Part D claim volume — percentile in specialty: 43 · MIPS quality — percentile: 3Part D claim volume — percentile in specialty: 62 · MIPS quality — percentile: 67Part D claim volume — percentile in specialty: 70 · MIPS quality — percentile: 22Part D claim volume — percentile in specialty: 3 · MIPS quality — percentile: 47Part D claim volume — percentile in specialty: 52 · MIPS quality — percentile: 60Part D claim volume — percentile in specialty: 80 · MIPS quality — percentile: 18Part D claim volume — percentile in specialty: 2 · MIPS quality — percentile: 45Part D claim volume — percentile in specialty: 85 · MIPS quality — percentile: 37Part D claim volume — percentile in specialty: 77 · MIPS quality — percentile: 92Part D claim volume — percentile in specialty: 22 · MIPS quality — percentile: 63Part D claim volume — percentile in specialty: 33 · MIPS quality — percentile: 55Part D claim volume — percentile in specialty: 37 · MIPS quality — percentile: 8Part D claim volume — percentile in specialty: 100 · MIPS quality — percentile: 30Part D claim volume — percentile in specialty: 78 · MIPS quality — percentile: 2Part D claim volume — percentile in specialty: 63 · MIPS quality — percentile: 23Part D claim volume — percentile in specialty: 5 · MIPS quality — percentile: 23Part D claim volume — percentile in specialty: 45 · MIPS quality — percentile: 7Part D claim volume — percentile in specialty: 82 · MIPS quality — percentile: 88Part D claim volume — percentile in specialty: 92 · MIPS quality — percentile: 78Part D claim volume — percentile in specialty: 20 · MIPS quality — percentile: 53Part D claim volume — percentile in specialty: 47 · MIPS quality — percentile: 52Part D claim volume — percentile in specialty: 93 · MIPS quality — percentile: 85Part D claim volume — percentile in specialty: 17 · MIPS quality — percentile: 72Part D claim volume — percentile in specialty: 18 · MIPS quality — percentile: 40Joleen Volz, PAC — Part D claim volume — percentile in specialty: 80 · MIPS quality — percentile: 93
Part D claim volume vs MIPS quality, by specialty percentile

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

What does the federal data show about Joleen Volz, PAC?

High performer (top quartile)

NPI registry status

Active

Issued 01/02/2007

NPI 1487711347

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

880 11% vs specialty avg

2023 prescription claims

Specialty avg: 790

MIPS final score

100/100 16.9 pts vs avg

Exceptional band

vs 83.1 national avg

Specialty distribution in Texas

How Physician Assistant compares to other specialties among Texas providers

Texas providers

Largest specialties in Texas (% of in-state providers)

Behavior Technician — 5.6%Behavior Technician5.6%Student in an Organized Health Care Education/Training Program — 5.1%Student in an Organized Health Care Education/Training Program5.1%Family Nurse Practitioner — 4.5%Family Nurse Practitioner4.5%Professional Counselor — 4.4%Professional Counselor4.4%Pharmacist — 4.4%Pharmacist4.4%Speech-Language Pathologist — 3.9%Speech-Language Pathologist3.9%Physician Assistant — 2.4%Physician Assistant2.4%
Largest specialties in Texas (% of in-state providers)

Medicare quality performance — MIPS

Joleen Volz, PAC's 2023 MIPS final score plotted against the Physician Assistant national average

High performer (top quartile)
MIPS Final Score
100/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Physician Assistant) — 100/100 vs national avg 83.1

0%100%National avg83%99%
MIPS final score (Physician Assistant) — 100/100 vs national avg 83.1

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).

Joleen Volz, PAC appears in the CMS NPPES registry as a Physician Assistant provider holding PAC credentials at 401 HOSPITAL DR, Corsicana, TX, 75110, with a listed phone of (903) 875-0413. NPI 1487711347 was issued on 01/02/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Volz 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 880 prescription claims written by this provider, covering 303 Medicare beneficiaries and totaling roughly $698K in drug spend, split 18% brand-name and 82% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 100/100 for the 2023 performance year, compared with the national average of 83.1.

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

401 HOSPITAL DR
Corsicana, TX 75110

Provider Details

NPI 1487711347
Specialty Physician Assistant
Credentials PAC
Gender Female
NPI Issued 01/02/2007

CMS Quality Score (MIPS)

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

100
Final Score
Avg: 83.1
100
Promoting Interoperability

Reporting: Individual

Hospital and facility affiliations

Facilities where Joleen Volz, PAC 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.

Oliver Street 5.01(A) Inc
Tyler, TX

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 Joleen Volz, PAC. Source: openpaymentsdata.cms.gov.

Total received

$10.7K

Largest payer

Arcutis Biotherapeutics, 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.

License & disciplinary context — Texas TMB 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 — they are NOT specific to Joleen Volz, PAC. To verify Joleen Volz, PAC's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

Joleen Volz, PAC — brand share 18.0%
Physician Assistant average

18% brand-name claims vs 82% generic, on 880 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.

880
Total Claims
$698K
Total Drug Cost
303
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,032
Total Day Supply
28,727
Brand vs Generic
18% brand / 82% generic
Brand Drug Cost
$670K
Generic Drug Cost
$29K
Antibiotic Claims
51

Patient Demographics

Average Patient Age
73.6 years
Avg HCC Risk Score
1.28
Gender Split
61% female / 39% male
Age Distribution
<65: 21, 65-74: 143, 75-84: 109, 85+: 30

Top Prescribed Drugs (Medicare Part D)

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

What Joleen Volz, PAC 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
Ketoconazole
199
Triamcinolone Acetonide
71
Betamethasone Valerate
62
Clobetasol Propionate
47
Doxycycline Hyclate
47
Metronidazole
31
Spironolactone
31
Mupirocin
25
Methotrexate
Methotrexate Sodium
19
Nystatin-Triamcinolone
Nystatin/Triamcinolone Acet
19

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

Physician Assistant Overview

How Joleen Volz, PAC fits within the Physician Assistant landscape nationally.

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

Joleen Volz, PAC's 880 claims are above the specialty average of 790.

Nearby Physician Assistant Providers in Texas

Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Volz.

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Texas medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Physician Assistant peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Joleen Volz, PAC's specialty?
Joleen Volz, PAC specializes in Physician Assistant and practices in Corsicana, Texas. Credentials: PAC.
How much does Joleen Volz, PAC prescribe under Medicare Part D?
In 2023, Joleen Volz, PAC wrote 880 Medicare Part D claims totaling $698K in drug costs for 303 beneficiaries.
What is Joleen Volz, PAC's Medicare quality score?
Joleen Volz, PAC has a CMS MIPS Final Score of 100/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Joleen Volz, PAC located?
Joleen Volz, PAC is located at 401 HOSPITAL DR, Corsicana, TX, 75110. Phone: (903) 875-0413.
What is Joleen Volz, PAC's NPI number?
Joleen Volz, PAC's National Provider Identifier (NPI) is 1487711347, issued on 01/02/2007.
Does Joleen Volz, PAC prescribe more brand-name or generic drugs?
Joleen Volz, PAC's prescribing is 18% brand-name and 82% generic drugs by claim count, with $670K 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 Joleen Volz, PAC prescribe most often?
Based on 2023 Medicare Part D data, Joleen Volz, PAC's most frequently prescribed drugs include Ketoconazole, Triamcinolone Acetonide, Betamethasone Valerate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Joleen Volz, PAC accept Medicare?
Joleen Volz, PAC appears in CMS Medicare data with 880 Part D claims and 303 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Joleen Volz, PAC's credentials?
Joleen Volz, PAC's NPI is 1487711347 with credentials PAC. 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.
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 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

Compiled from official public sources by the PlainDoctor editorial team.