NPI age
6 years
Enumerated 2019-07-12
● Active Type 2 · Organization
Tomball Gastroenterology Associates P.A
Tomball Gastroenterology Associates P.A is 1 of 1807 internal medicine organizations in Texas.
Primary specialty
Internal Medicine
Practice locations
1
0 secondary on file
Status
Active
No deactivations on record
Authorized official
Guram
Owner
Last NPPES update
2025-09-04
Source: monthly bulk 2026-05
How this organization compares
Across 1807 active internal medicine providers in Texas.
NPI age
6 years
↓ 13 yr below median
Practice locations
1
0 secondary on file
Subspecialties
0
NPI lifetime · 2019 → 2026
2019-07Enumerated in NPPES
2019
2026
Where they practice
Primary practice location
425 Holderrieth Blvd Ste 114
Tomball, TX 773755189
Mailing address
425 Holderrieth Blvd Ste 114
Tomball, TX 773755189
Authorized official
Maninder Singh Guram, MD
Owner
📞 2816303550
Individual providers at this organization
5 individual providers on file at this primary practice address.
- Trisha Coover, FNP Nurse Practitioner NPI 1407115009
- Candice Demattia, MD Family Medicine NPI 1669427670
- Jason Demattia, MD Family Medicine NPI 1528013125
- Maninder Guram, M.D. Internal Medicine NPI 1689671307
- Jennifer Strimple, MSN, APRN, FNP-C Nurse Practitioner NPI 1073392635
Specialties
-
Internal Medicine PrimaryAn internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 | 890982 | MEDICARE |
| 05 (TX) | 4224313 |
Practice context
Multi-provider organization. 5 individual providers on file at this primary address.
Provyx · Custom healthcare lists
Need all 1807 Internal Medicine providers in Texas?
Get the full list as a CSV with verified work emails, direct phones, and LinkedIn URLs.
Request a quote →How to verify this organization
- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Verify the organization is in good standing.Cross-check with the state's business registration and any applicable licensing boards.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.