Viswanath Kalapatapu, M.D.
NPI 1972549061 · Internal Medicine Physician · Katy, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Viswanath Kalapatapu, M.D. is a Internal Medicine Physician provider in Katy, TX (NPI 1972549061).
Provider details
- NPI number
- 1972549061
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 050697 (GA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
2,086 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 | 686 | $134 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 240 | $66 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 143 | $138 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 134 | $95 |
| Hemoglobin A1c Level83036 | 96 | $10 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 149 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 418 | 122 |
| Atorvastatin Calcium | 348 | 119 |
| Rosuvastatin Calcium | 341 | 110 |
| Amlodipine Besylate | 276 | 77 |
| Losartan Potassium | 226 | 66 |
| Gabapentin | 206 | 68 |
| Omeprazole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,738 across 85 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
- 2006-06-20
- Last updated
- 2010-12-17
Frequently asked questions
- What is Viswanath Kalapatapu's NPI number?
- Viswanath Kalapatapu's National Provider Identifier (NPI) is 1972549061, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Viswanath Kalapatapu's specialty?
- Viswanath Kalapatapu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Viswanath Kalapatapu located?
- Viswanath Kalapatapu's practice location on file with NPPES is 1331 W. Grand Parkway North, Katy, TX 77493-2711.
- What is Viswanath Kalapatapu's phone number?
- The practice phone number listed in the NPPES registry for Viswanath Kalapatapu is (281) 392-8620.
- Does Viswanath Kalapatapu accept Medicare?
- Viswanath Kalapatapu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Viswanath Kalapatapu's NPI active?
- Yes — Viswanath Kalapatapu's NPI (1972549061) is active in the NPPES registry as of the last update on 2010-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.