Garrett Grissim, MD
NPI 1144088139 · Student in an Organized Health Care Education/Training Program · Houston, TX
Garrett Grissim, MD is a Student in an Organized Health Care Education/Training Program provider in Houston, TX (NPI 1144088139).
Provider details
- NPI number
- 1144088139
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2024-03-13
- Last updated
- 2024-03-26
- Certified
- 2024-03-26
Frequently asked questions
- What is Garrett Grissim's NPI number?
- Garrett Grissim's National Provider Identifier (NPI) is 1144088139, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Garrett Grissim's specialty?
- Garrett Grissim is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Garrett Grissim located?
- Garrett Grissim's practice location on file with NPPES is 6431 Fannin St, Houston, TX 77030-1501.
- What is Garrett Grissim's phone number?
- The practice phone number listed in the NPPES registry for Garrett Grissim is (713) 500-6003.
- Is Garrett Grissim's NPI active?
- Yes — Garrett Grissim's NPI (1144088139) is active in the NPPES registry as of the last update on 2024-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.