Henry GraingerDO
Henry Grainger, DO is an Internal Medicine provider in Houston, TX, as of July 2026.
- NPI1306892005
- Registered2006
- Class of1973
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Henry Grainger at a glance
- Provider
- Henry Grainger
- Credential
- DO
- Specialty
- Internal Medicine
- Procedures
- Internal Medicine CPT codes
- Location
- Houston, TX
- Medical school graduation
- 1973
- NPI registered
- 2006
- NPI
- 1306892005
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does Henry Grainger practice?
Henry Grainger, DO is based in Houston, TX. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Henry Grainger's NPI number?
Henry Grainger's National Provider Identifier (NPI) is 1306892005, registered in 2006. Specialty on record: Internal Medicine; credential DO.
How many Internal Medicine providers in Texas work at ambulatory surgery centers?
87 Internal Medicine surgeons and proceduralists in Texas are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Henry Grainger among them. The Texas Internal Medicine directory lists each one by city with credential, NPI, and center affiliations.
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