NPPES file of Aug 9, 2026

Marlen Vanessa Piersall, PA-C

Physician Assistant · Dallas, TX

Marlen Vanessa Piersall, PA-C is a physician assistant with a practice address in Dallas, Texas, and NPI 1003365602, issued on Sep 25, 2016. Check the license (Texas PA12506, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1003365602
Name
Marlen Vanessa Piersall
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License numbers
PA12506 TX
PA20160088 NM
Self-reported in NPPES; status is on the state search
Practice location
1801 Inwood RD, Dallas, TX 75235
Phone
(214) 654-2900
Enumerated
Sep 25, 2016
Record last updated
May 12, 2024
Medicare enrollment
Enrolled (PECOS I20190610002779); accepts Medicare assignment
Medical or professional school
University Of Texas Southwestern Medical School At Dallas, 2007
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1801 Inwood RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Johnson AndreStudent in an Organized Health Care Education/Training Program1932895190
  2. Zainab Aro-Lambo, AGACNPAcute Care Nurse Practitioner1104701549
  3. Antonia Chen, MDOrthopaedic Surgery Physician1467613760
  4. Carol Croft, MDInternal Medicine Physician1558321448
  5. Anca DogaroiuStudent in an Organized Health Care Education/Training Program1891598769
  6. Federico Facchin, MDPlastic Surgery Physician1497481980

Verify Marlen Vanessa Piersall in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Texas board licenses this profession
    Search for license PA12506
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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81% fewer Medicare Part D claims than the average physician assistant in 2024

154 Medicare Part D claims for 69 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 60 claims were for opioids.

  1. Marlen Piersall154
  2. Specialty average830

Most prescribed

  1. Tramadol Hcl58 claims
  2. Methocarbamol37 claims
  3. Levothyroxine Sodium25 claims
  4. Tizanidine Hcl12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 74.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score56.1
  2. Costout of 100 · 30%59.2
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $20.82

1 payment: food and beverage; the largest payer was Novo Nordisk Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marlen Piersall$20.82
  2. Specialty average$841.65

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. University OF Texas Southwestern Medical Center AT DallasFrisco, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Marlen Vanessa Piersall among 10,999 physician assistant records in Texas

Marlen Vanessa Piersall, PA-C is one of 10,999 physician assistant records with a practice address in Texas. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 48% of them.

  • NPI issued2016 · 48% of these records are older, 48% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated2007 · median 2017 among the 6,096 with a school on file
  • Record last updated2024 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,164 physician assistant records list a practice address in Dallas

They are 1,164 of the 36,304 NPPES records with a practice address in Dallas, and 10,999 physician assistant records in Texas.

The 8 physician assistant records with the nearest ZIP codes

  1. Godwin Adams, PA-CDallas, TX 752351154320034
  2. Richard Benson, PA-CDallas, TX 752351669457198
  3. Cynthia Cope-Tome, PA-CDallas, TX 752351689659104
  4. Linda Delaney, PA-CDallas, TX 752351053396119
  5. Patrick Fox, PA-CDallas, TX 752351487654109
  6. Thomas Gannon, PA-CDallas, TX 752351629078811
  7. Linda Kientz, PA-CDallas, TX 752351023018736
  8. Phuong Luu, PADallas, TX 752351649257353

Common questions

What is Marlen Vanessa Piersall, PA-C's NPI number?

Marlen Vanessa Piersall, PA-C's National Provider Identifier (NPI) is 1003365602, issued on Sep 25, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Marlen Vanessa Piersall, PA-C located?

The NPPES record lists a practice address at 1801 Inwood RD, Dallas, TX, 75235. Phone: (214) 654-2900. Providers update this record themselves, so call before visiting.

How can I verify Marlen Vanessa Piersall, PA-C's license?

NPPES lists Texas license number PA12506, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.

How much does Marlen Vanessa Piersall, PA-C prescribe under Medicare Part D?

In 2024, Marlen Vanessa Piersall, PA-C had 154 Medicare Part D claims for 69 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Marlen Vanessa Piersall, PA-C's MIPS final score?

The 2023 MIPS final score is 74.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.