Ranil Gajanayaka, MD
NPI 1841452380 · Nephrology Physician · Irving, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ranil Gajanayaka, MD is a Nephrology Physician provider in Irving, TX (NPI 1841452380).
Provider details
- NPI number
- 1841452380
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- Q4580 (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
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,450 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 499 | $16 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 484 | $115 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 483 | $110 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 282 | $77 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 187 | $167 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 132 | 62 |
| Torsemide | 113 | 37 |
| Nifedipinebrand: Nifedipine Er | 71 | 23 |
| Lisinopril | 68 | 22 |
| Potassium Chloride | 66 | 23 |
| Losartan Potassium | 56 | 22 |
| Allopurinol | 54 | 21 |
| Hydralazine Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$272 across 12 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
Additional practice locations (2)
- 2020 W State Highway 114 Ste 190Grapevine, TX 76051-8649Phone: (214) 358-2300Fax: (214) 579-6984
- 925 E Southlake Blvd Ste 270Southlake, TX 76092-1479Phone: (214) 358-2300Fax: (214) 579-6984
Registry dates
- Enumerated
- 2008-06-26
- Last updated
- 2023-11-15
- Certified
- 2023-11-15
Frequently asked questions
- What is Ranil Gajanayaka's NPI number?
- Ranil Gajanayaka's National Provider Identifier (NPI) is 1841452380, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ranil Gajanayaka's specialty?
- Ranil Gajanayaka is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Ranil Gajanayaka located?
- Ranil Gajanayaka's practice location on file with NPPES is 2005 W Park Dr Ste 200, Irving, TX 75061-2034.
- What is Ranil Gajanayaka's phone number?
- The practice phone number listed in the NPPES registry for Ranil Gajanayaka is (214) 358-2300.
- Does Ranil Gajanayaka accept Medicare?
- Ranil Gajanayaka is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ranil Gajanayaka's NPI active?
- Yes — Ranil Gajanayaka's NPI (1841452380) is active in the NPPES registry as of the last update on 2023-11-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.