Samantha Naomi Ratnayake, MD
Internal Medicine Physician · Bakersfield, CA
Samantha Naomi Ratnayake, MD is an internal medicine physician with a practice address in Bakersfield, California, and NPI 1285261032, issued on Mar 23, 2020. Check the license (California A180459, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Samantha Naomi Ratnayake
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A180459 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1700 Mount Vernon Ave, Bakersfield, CA 93306
- Phone
- (661) 326-2202
- Enumerated
- Mar 23, 2020
- Record last updated
- Sep 21, 2023
- Medicare enrollment
- Enrolled (PECOS I20231128003838); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1700 Mount Vernon Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Pernian AbadiPrimary Care Nurse Practitioner1801760814
- Mariam AbdelmissehInternal Medicine Physician1902250574
- Arian AbdiStudent in an Organized Health Care Education/Training Program1306538087
- Ayham Aboeed, M.D.Critical Care Medicine (Internal Medicine) Physician1093969750
- Jesslin Abraham, MDStudent in an Organized Health Care Education/Training Program1497333751
- Quinn Adams, MDStudent in an Organized Health Care Education/Training Program1790627537
Verify Samantha Naomi Ratnayake in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A180459Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,549 Medicare Part D claims for 560 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 65 claims were for opioids.
Most prescribed
- Losartan Potassium120 claims
- Amlodipine Besylate114 claims
- Atorvastatin Calcium110 claims
- Levothyroxine Sodium88 claims
- Albuterol Sulfate Hfa75 claims
- Lisinopril71 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $435.04
13 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Sam Ratnayake, M.D., IncBakersfield, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Samantha Naomi Ratnayake among 17,696 internal medicine physician records in California
Samantha Naomi Ratnayake, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 89% of them.
- NPI issued2020 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2020 · median 2004 among the 11,065 with a school on file
- Record last updated2023 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
214 internal medicine physician records list a practice address in Bakersfield
They are 214 of the 11,539 NPPES records with a practice address in Bakersfield, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Bakersfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mariam AbdelmissehBakersfield, CA 933061902250574
- David Aguirre, M.D.Bakersfield, CA 933061538401013
- Ararat Avetisyan, M.D.Bakersfield, CA 933061649680471
- Si Chen, M.D.Bakersfield, CA 933061467794180
- Bahareh Ghafarizadeh, M.DBakersfield, CA 933061548503683
- Mohamed Hammami, MDBakersfield, CA 933061285049726
- Royce Johnson, MDBakersfield, CA 933061336174655
- Jerome Lazaga, M.D.Bakersfield, CA 933061639417181
Common questions
What is Samantha Naomi Ratnayake, MD's NPI number?
Samantha Naomi Ratnayake, MD's National Provider Identifier (NPI) is 1285261032, issued on Mar 23, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Samantha Naomi Ratnayake, MD located?
The NPPES record lists a practice address at 1700 Mount Vernon Ave, Bakersfield, CA, 93306. Phone: (661) 326-2202. Providers update this record themselves, so call before visiting.
How can I verify Samantha Naomi Ratnayake, MD's license?
NPPES lists California license number A180459, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Samantha Naomi Ratnayake, MD prescribe under Medicare Part D?
In 2024, Samantha Naomi Ratnayake, MD had 2,549 Medicare Part D claims for 560 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.