NPI age
11 years
Enumerated 2014-07-29
● Active Type 2 · Organization
Mark Harrison MD Pllc
Mark Harrison MD Pllc is 1 of 568 radiology organizations in Texas.
Primary specialty
Radiology
Practice locations
1
0 secondary on file
Status
Active
No deactivations on record
Authorized official
Harrison
President
Last NPPES update
2014-07-29
Source: monthly bulk 2026-05
How this organization compares
Across 568 active radiology providers in Texas.
NPI age
11 years
↓ 7 yr below median
Practice locations
1
0 secondary on file
Subspecialties
0
NPI lifetime · 2014 → 2026
2014-07Enumerated in NPPES
2014
2026
Where they practice
Primary practice location
1719 Treasure Hills Blvd
Harlingen, TX 785508912
Mailing address
1719 Treasure Hills Blvd
Harlingen, TX 785508912
Authorized official
Mark L Harrison, MD
President
📞 9564306400
Individual providers at this organization
4 individual providers on file at this primary practice address.
- Nisar Ahmad, M.D. Internal Medicine NPI 1659390045
- Ladislao Cardenas, RPH Pharmacist NPI 1114723236
- Laura Cisneros, MD Internal Medicine NPI 1881683159
- Veronica Schubert, PHARMD Pharmacist NPI 1992568620
Specialties
-
Radiology PrimaryA radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.
Practice context
Multi-provider organization. 4 individual providers on file at this primary address.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
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- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.