Senaka Ratnayake, MD
NPI 1194108670 · Family Medicine Physician · South Bend, IN
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Senaka Ratnayake, MD is a Family Medicine Physician provider in South Bend, IN (NPI 1194108670).
Provider details
- NPI number
- 1194108670
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 11018128A (IN)
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 tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
849 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 217 | $119 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 129 | $84 |
| 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 | 107 | $15 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 78 | $9 |
| Hemoglobin A1c Level, By Device for Home Use83037 | 75 | $10 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent Visit |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 92 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 464 | 126 |
| Levothyroxine Sodium | 300 | 73 |
| Lisinopril | 289 | 80 |
| Amlodipine Besylate | 288 | 83 |
| Losartan Potassium | 182 | 49 |
| Omeprazole | 180 | 51 |
| Hydrochlorothiazide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-07-02
- Last updated
- 2018-05-29
Frequently asked questions
- What is Senaka Ratnayake's NPI number?
- Senaka Ratnayake's National Provider Identifier (NPI) is 1194108670, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Senaka Ratnayake's specialty?
- Senaka Ratnayake is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Senaka Ratnayake located?
- Senaka Ratnayake's practice location on file with NPPES is 714 N Michigan St, South Bend, IN 46601.
- What is Senaka Ratnayake's phone number?
- The practice phone number listed in the NPPES registry for Senaka Ratnayake is (574) 647-7477.
- Does Senaka Ratnayake accept Medicare?
- Senaka Ratnayake is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Senaka Ratnayake's NPI active?
- Yes — Senaka Ratnayake's NPI (1194108670) is active in the NPPES registry as of the last update on 2018-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.