Samantha Ratnayake, MD
NPI 1285261032 · Internal Medicine Physician · Bakersfield, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Samantha Ratnayake, MD is a Internal Medicine Physician provider in Bakersfield, CA (NPI 1285261032).
Provider details
- NPI number
- 1285261032
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
6 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,388 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,221 | $93 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 198 | $9 |
| 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 | 197 | $16 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 157 | $64 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 108 | $49 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 62 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 120 | 53 |
| Amlodipine Besylate | 114 | 51 |
| Atorvastatin Calcium | 110 | 61 |
| Levothyroxine Sodium | 88 | 33 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 75 | 41 |
| Lisinopril | 71 | 34 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$435 across 13 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)
- 7879 Rosedale HwyBakersfield, CA 93308-5785Phone: (661) 337-3777
- 565 N Thompson RdTipton, CA 93272-9756Phone: (559) 752-4147
Registry dates
- Enumerated
- 2020-03-23
- Last updated
- 2023-09-21
- Certified
- 2023-09-21
Frequently asked questions
- What is Samantha Ratnayake's NPI number?
- Samantha Ratnayake's National Provider Identifier (NPI) is 1285261032, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Samantha Ratnayake's specialty?
- Samantha Ratnayake is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Samantha Ratnayake located?
- Samantha Ratnayake's practice location on file with NPPES is 1700 Mount Vernon Ave, Bakersfield, CA 93306-4018.
- What is Samantha Ratnayake's phone number?
- The practice phone number listed in the NPPES registry for Samantha Ratnayake is (661) 326-2202.
- Does Samantha Ratnayake accept Medicare?
- Samantha Ratnayake is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Samantha Ratnayake's NPI active?
- Yes — Samantha Ratnayake's NPI (1285261032) is active in the NPPES registry as of the last update on 2023-09-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.