Marilyn Horton, M.D., P.A.
NPI 1538341284 · Internal Medicine Physician · Dallas, TX
Marilyn Horton, M.D., P.A. is a Internal Medicine Physician organization in Dallas, TX (NPI 1538341284).
Provider details
- NPI number
- 1538341284
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Marilyn Horton, President(214) 239-1938
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
18 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
- 2007-12-04
- Last updated
- 2007-12-04
Frequently asked questions
- What is Marilyn Horton, M.D., P.A.'s NPI number?
- Marilyn Horton, M.D., P.A.'s National Provider Identifier (NPI) is 1538341284, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Marilyn Horton, M.D., P.A.?
- Marilyn Horton, M.D., P.A. is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marilyn Horton, M.D., P.A. located?
- Marilyn Horton, M.D., P.A.'s practice location on file with NPPES is 8210 Walnut Hill Ln Ste 515, Dallas, TX 75231-4420.
- What is Marilyn Horton, M.D., P.A.'s phone number?
- The practice phone number listed in the NPPES registry for Marilyn Horton, M.D., P.A. is (214) 239-1938.
- Who is the authorized official for Marilyn Horton, M.D., P.A.?
- The authorized official listed on Marilyn Horton, M.D., P.A.'s NPPES record is Marilyn Horton, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Marilyn Horton, M.D., P.A.'s NPI active?
- Yes — Marilyn Horton, M.D., P.A.'s NPI (1538341284) is active in the NPPES registry as of the last update on 2007-12-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.