Marlen Vanessa Piersall, PA-C
- Medicare services, 2024
- 40
- Medicare patients, 2024
- 46
- Part D claims, 2024
- 154
- MIPS score, 2024
- 83
- Hospital affiliations
- 2
- Practice address
- 12400 N Dallas Parkway, Frisco, TX 75033
- Practice phone
- Call (469) 495-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Marlen Piersall's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Marlen Vanessa Piersall is a physician assistant in Frisco, Texas
Marlen Piersall practices at Texas Health Hospital Frisco in Frisco, Texas, part of Texas Health Resources.
Marlen Piersall's NPI, 1003365602, was assigned on September 25, 2016. Marlen Piersall graduated from University of Texas Southwestern Medical School at Dallas in 2007. Marlen Piersall holds Texas license PA12506.
- NPI
- 1003365602NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315220894
- NPI enumeration date
- September 25, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (469) 495-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Marlen Vanessa Piersall practices at Texas Health Hospital Frisco in Frisco, Texas
Marlen Piersall's primary practice is Texas Health Hospital Frisco, at 12400 N Dallas Parkway, Frisco, TX 75033 in Denton County. The practice phone is (469) 495-2000.
- Texas Health Hospital Frisco12400 N Dallas Parkway, Frisco, TX 75033 · Denton CountyPhone(469) 495-2000
Source: Dmand AI Affiliation Data
Marlen Vanessa Piersall is affiliated with 3 sites of care and 1 medical group
Marlen Piersall's primary practice is Texas Health Hospital Frisco in Frisco, Texas, part of Texas Health Resources. Marlen Piersall is also affiliated with William P. Clements Jr. University Hospital. The medical group on file is University of Texas Southwestern Medical Center. Dmand AI also links Marlen Piersall to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Marlen Vanessa Piersall's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marlen Piersall practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Texas Health Hospital Frisco | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Marlen Vanessa Piersall is one of 8,663 physician assistants in Texas
Physician assistant is Marlen Piersall's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Dmand AI has Marlen Piersall's licenses on file in 2 states: Texas and New Mexico.
Specialties and state licenses
- Physician assistant, TexasPrimary
- New Mexico license
Physician assistants near Marlen Piersall
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Marlen Vanessa Piersall billed Medicare for 40 services in 2024
CMS data shows 40 Medicare services from Marlen Piersall across 2 procedure codes in 2024, for 46 Medicare patients. Medicare paid $4,299 for them.
Marlen Piersall's Medicare services by type, 2024
- Surgery24
- Office and hospital visits16
Where Marlen Piersall's Medicare services took place, 2024
- In an office1640%
- In a facility2460%
Marlen Piersall compared with the Texas median for physician assistants, 2024
- Marlen Piersall
- Texas median
- Medicare services
- 40vs 22983% below
- Medicare patients
- 46vs 9954% below
- Part D claims
- 132vs 29655% below
Medians across 5,541 physician assistants in Texas with Dmand AI profiles that report each measure.
Marlen Piersall's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Marlen Vanessa Piersall treated 46 Medicare patients in 2024, average age 73
CMS counts 46 Medicare patients who saw Marlen Piersall in 2024. The largest group is 65 to 74, with 27 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.51, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Marlen Piersall's median patient age at 61, with 77% women.
Marlen Piersall's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Marlen Piersall's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis61%
- Chronic kidney disease33%
- Ischemic heart disease30%
- Osteoporosis30%
- Diabetes26%
- Mood disorders26%
Share of Medicare patients with each condition. A patient can have several.
Marlen Piersall's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women77%
- Men22%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Marlen Vanessa Piersall wrote 154 Medicare Part D claims in 2024
In 2024, Marlen Piersall wrote 154 Medicare Part D claims for 69 patients. 91% of them were for generic drugs. CMS names the drug for 132 of them, across 4 drugs with 11 or more claims each, at $705 in total drug cost.
Marlen Piersall's Part D claims by kind of drug, 2024
- Generic140 claims91%
- Brand-name14 claims9%
Marlen Piersall's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Marlen Piersall's Part D claims, 2024
- Opioids39%60 of 154 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Marlen Vanessa Piersall scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Marlen Piersall for performance year 2024, reported as part of a group. Marlen Piersall accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Marlen Piersall as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Marlen Piersall's MIPS scores, performance year 2024
- 83of 100Final score
- 70.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 73of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Marlen Vanessa Piersall received $21 in industry payments in 2024
CMS Open Payments shows 1 general payment to Marlen Piersall from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $21.
Companies that paid Marlen Piersall the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Marlen Vanessa Piersall graduated from University of Texas Southwestern Medical School at Dallas
Marlen Piersall graduated from University of Texas Southwestern Medical School at Dallas in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Marlen Vanessa Piersall's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Marlen Vanessa Piersall
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marlen Vanessa Piersall's NPI number?
Marlen Vanessa Piersall's NPI number is 1003365602. It was assigned on September 25, 2016, and it is active in the NPI Registry.
What does Marlen Vanessa Piersall specialize in?
Marlen Vanessa Piersall is a physician assistant in Frisco, Texas. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Marlen Vanessa Piersall practice?
Marlen Piersall practices at 12400 N Dallas Parkway, Frisco, TX 75033. Marlen Piersall's primary practice is Texas Health Hospital Frisco in Frisco, Texas, part of Texas Health Resources. Dmand AI also links Marlen Piersall to 1 group practice or clinic.
What is Marlen Vanessa Piersall's office phone number?
The practice phone on file for Marlen Piersall is (469) 495-2000.
What is Marlen Vanessa Piersall's medical license number?
Marlen Piersall holds Texas license PA12506, one of the licenses on file in 2 states.
Which states has Marlen Vanessa Piersall been licensed in?
Dmand AI has state licenses on file for Marlen Piersall in Texas and New Mexico.
Which hospitals is Marlen Vanessa Piersall affiliated with?
Marlen Piersall practices at Texas Health Hospital Frisco in Frisco, Texas. Marlen Piersall is also affiliated with William P. Clements Jr. University Hospital.
What medical group is Marlen Vanessa Piersall part of?
Marlen Piersall is linked to University of Texas Southwestern Medical Center.
Does Marlen Vanessa Piersall accept Medicare?
Yes. CMS data shows Marlen Piersall billed Medicare for 40 services in 2024, and Marlen Piersall accepts Medicare assignment.
Does Marlen Vanessa Piersall offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Marlen Piersall as offering telehealth services.
Show 7 more questionsShow fewer questions
What is Marlen Vanessa Piersall's MIPS score?
Marlen Piersall's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
How many Medicare patients does Marlen Vanessa Piersall see?
CMS counts 46 Medicare patients who saw Marlen Piersall in 2024, with an average age of 73.
What services does Marlen Vanessa Piersall bill to Medicare?
In 2024, Marlen Piersall's most billed Medicare services were surgery: endocrine glands (60500) and office visit, new patient (99205).
Where did Marlen Vanessa Piersall go to medical school?
Marlen Piersall graduated from University of Texas Southwestern Medical School at Dallas in 2007.
What drugs does Marlen Vanessa Piersall prescribe most?
In 2024 Medicare Part D data, Marlen Piersall's most prescribed drugs by claims were Tramadol HCl, Methocarbamol and Levothyroxine Sodium.
Has Marlen Vanessa Piersall received payments from drug or device companies?
CMS Open Payments shows $21 in general payments to Marlen Piersall from 1 company from 2024 to 2024. The largest total came from Novo Nordisk Inc.
How long has Marlen Vanessa Piersall been practicing?
Marlen Piersall graduated from medical school in 2007, 19 years ago.
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