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John Rust, M.D.
NPI 1518011444 · Psychiatry Physician · San Marcos, TX
John Rust, M.D. is a Psychiatry Physician provider in San Marcos, TX (NPI 1518011444).
Provider details
- NPI number
- 1518011444
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- E1106 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
120 Bert Brown St
San Marcos, TX 78666-5803
Phone: (512) 396-8500
Fax: (512) 754-3882
Street-level locationGet directions
Mailing address
1010 Burleson St
San Marcos, TX 78666-4232
Registry dates
- Enumerated
- 2007-01-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Rust's NPI number?
- John Rust's National Provider Identifier (NPI) is 1518011444, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Rust's specialty?
- John Rust is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is John Rust located?
- John Rust's practice location on file with NPPES is 120 Bert Brown St, San Marcos, TX 78666-5803.
- What is John Rust's phone number?
- The practice phone number listed in the NPPES registry for John Rust is (512) 396-8500.
- Is John Rust's NPI active?
- Yes — John Rust's NPI (1518011444) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.