Yana Samarasena, MD
Allergy & Immunology Physician · Fountain Valley, CA
Yana Samarasena, MD is an allergy & immunology physician with a practice address in Fountain Valley, California, and NPI 1164683678, issued on Jun 18, 2008. Check the license (California A99671, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Yana Samarasena
- Credential
- MD
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- A99671 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11100 Warner Ave, Fountain Valley, CA 92708
- Phone
- (714) 241-1777
- Enumerated
- Jun 18, 2008
- Record last updated
- Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 444 in California → Look up another NPI →
Also registered at 11100 Warner Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Himmet Dajee, MDSpecialist1124082730
Verify Yana Samarasena in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A99671Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
320 Medicare Part D claims for 71 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.
Most prescribed
- Spiriva Respimat39 claims
- Advair Hfa33 claims
- Pantoprazole Sodium32 claims
- Breyna25 claims
- Ipratropium Bromide21 claims
- Azelastine Hcl19 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.
Yana Samarasena among 444 allergy & immunology physician records in California
Yana Samarasena, MD is one of 444 allergy & immunology 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 2008, is newer than 62% of them.
- NPI issued2008 · 62% of these records are older, 32% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2021 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in California
There are 444 allergy & immunology physician records in California.
All 444 in California → Every provider in Fountain Valley → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Ellen Reich, MDFountain Valley, CA 927081225292279
- Sharon Williams, M.D.North Tustin, CA 927051457772949
- Ahdad ZiyarSanta Ana, CA 927051205330685
- Ankmalika Gupta, MDIrvine, CA 926971790946440
- Sudhir Gupta, MDIrvine, CA 926971811077969
- Jenny Lee, M.D.Irvine, CA 926971083076749
- Lisa Lim, M.D.Irvine, CA 926971336334820
- Yesim Yilmaz Demirdag, M.D.Irvine, CA 926971134330921
Common questions
What is Yana Samarasena, MD's NPI number?
Yana Samarasena, MD's National Provider Identifier (NPI) is 1164683678, issued on Jun 18, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Yana Samarasena, MD located?
The NPPES record lists a practice address at 11100 Warner Ave, Fountain Valley, CA, 92708. Phone: (714) 241-1777. Providers update this record themselves, so call before visiting.
How can I verify Yana Samarasena, MD's license?
NPPES lists California license number A99671, 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 Yana Samarasena, MD prescribe under Medicare Part D?
In 2024, Yana Samarasena, MD had 320 Medicare Part D claims for 71 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.