Marlen Piersall, PA-C
Marlen Piersall, PA-C is a Physician Assistant in Dallas, TX, registered under NPI 1003365602.
Getting there
Here is what surrounds this office in Dallas, based on OpenStreetMap data collected Sep 21, 2026. Parking is available about 0.25 mi away. The nearest transit stop is 968 ft away, served by Sthwstrn Med @ Record Crossing - N - MB.
Getting here and what is nearby
Transit Inwood @ Southwestern Medical - S - FS 163 ft ~1 min
Transit Inwood @ IH 35 - S - MB 734 ft ~3 min
Gas station Exxon 894 ft ~4 min
1607 Inwood Road
Transit Sthwstrn Med @ Record Crossing - N - MB 968 ft ~4 min
Convenience 7-Eleven 947 ft ~4 min
Parking W1 Outpatient Garage 0.20 mi ~5 min
1990 Record Crossing Road, Dallas 75235
Parking 0.22 mi ~5 min
5400 Southwestern Medical Avenue
Parking 0.25 mi ~5 min
Restaurant Subway 0.28 mi ~6 min
1525 Inwood Road, Dallas 75207
Mo-Sa 06:30-22:00; Su 10:00-20:00
Convenience Fuel Town 0.29 mi ~6 min
1525 Inwood Road, Dallas 75247
Hotel Homewood Suites Dallas-Market Center 0.31 mi ~7 min
2747 North Stemmons Freeway
Restaurant Whataburger 0.31 mi ~7 min
Hotel Comfort Inn & Suites Dallas Medical-Market Center 0.32 mi ~7 min
Hotel Embassy Suites by Hilton Dallas Market Center 0.43 mi ~9 min
Restaurant Wendy's 0.43 mi ~9 min
5502 Harry Hines Boulevard, Dallas 75235
Mo-Sa 07:00-20:00; Su 08:00-20:00
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| PA12506 | TX | Physician Assistant primary |
| PA20160088 | NM | Physician Assistant |
Licences are recorded in 2 states: TX, NM. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Physician Assistant
- PAC ID
- 7315220894
- Enrollment ID
- I20190610002779
Medicare enrolment is recorded as approved under the provider type Practitioner - Physician Assistant. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
Licensed in 2 states
This provider holds licences in 2 states: New Mexico and Texas. The practice address on file is in Dallas, TX, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Physician Assistant covers
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician. NUCC Health Care Provider Taxonomy, code 363A00000X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 363A00000X | Physician Assistant | PA12506 | TX | primary |
| 363A00000X | Physician Assistant | PA20160088 | NM |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003365602 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 25, 2016 |
| Last updated | May 12, 2024 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | PA-C |
| Practice address |
1801 INWOOD RD Dallas, TX 75235 (214) 654-2900 |
| Other names |
Marlen Maldonado Former Legal Business Name |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 3 | 6 | 5 | 6 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 6 | 1 | 6 | 0 |
Sum = 48 · next multiple of 10 = 50 · check digit = 2 · actual last digit = 2
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.