Mark Harrison MD PLLC
NPI 1104234640 · Radiation Oncology Physician · Harlingen, TX
Mark Harrison MD PLLC is a Radiation Oncology Physician organization in Harlingen, TX (NPI 1104234640).
Provider details
- NPI number
- 1104234640
- Entity type
- Organization
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Mark Harrison, President(956) 430-6400
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-07-29
- Last updated
- 2014-07-29
Frequently asked questions
- What is Mark Harrison MD PLLC's NPI number?
- Mark Harrison MD PLLC's National Provider Identifier (NPI) is 1104234640, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mark Harrison MD PLLC?
- Mark Harrison MD PLLC is classified in the NPPES registry as Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Harrison MD PLLC located?
- Mark Harrison MD PLLC's practice location on file with NPPES is 1719 Treasure Hills Blvd, Harlingen, TX 78550-8912.
- What is Mark Harrison MD PLLC's phone number?
- The practice phone number listed in the NPPES registry for Mark Harrison MD PLLC is (956) 430-9400.
- Who is the authorized official for Mark Harrison MD PLLC?
- The authorized official listed on Mark Harrison MD PLLC's NPPES record is Mark Harrison, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mark Harrison MD PLLC's NPI active?
- Yes — Mark Harrison MD PLLC's NPI (1104234640) is active in the NPPES registry as of the last update on 2014-07-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.