Vivian Asamoah, MD
NPI 1326191081 · Gastroenterology Physician · Katy, TX
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Vivian Asamoah, MD is a Gastroenterology Physician provider in Katy, TX (NPI 1326191081).
Provider details
- NPI number
- 1326191081
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- P0163 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,218 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 253 | $123 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 184 | $37 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 167 | $160 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 121 | $122 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report88312 | 98 | $82 |
| Special Stained Specimen Slides to Examine Tissue Including Interpretation and Report88313 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 184 | 77 |
| Omeprazole | 69 | 30 |
| Famotidine | 45 | 18 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 41 | 37 |
| Lipase/Protease/Amylasebrand: Creon | 20 | — |
| Budesonidebrand: Budesonide Dr | 17 | — |
| Hydrocortisone | 16 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,085 across 107 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-18
- Last updated
- 2022-02-28
- Certified
- 2021-05-21
Frequently asked questions
- What is Vivian Asamoah's NPI number?
- Vivian Asamoah's National Provider Identifier (NPI) is 1326191081, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vivian Asamoah's specialty?
- Vivian Asamoah is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Vivian Asamoah located?
- Vivian Asamoah's practice location on file with NPPES is 25230 Kingsland Blvd Ste 101, Katy, TX 77494-2097.
- What is Vivian Asamoah's phone number?
- The practice phone number listed in the NPPES registry for Vivian Asamoah is (281) 746-9284.
- Does Vivian Asamoah accept Medicare?
- Vivian Asamoah is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Vivian Asamoah's NPI active?
- Yes — Vivian Asamoah's NPI (1326191081) is active in the NPPES registry as of the last update on 2022-02-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.