Himanshu Vajrin Wickramasinghe, M.D.
Pulmonary Disease Physician · Newhall, CA
Himanshu Vajrin Wickramasinghe, M.D. is a pulmonary disease physician with a practice address in Newhall, California, and NPI 1831118934, issued on Jul 19, 2006. Check the license (California A56078, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Himanshu Vajrin Wickramasinghe
- Credential
- M.D.
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- A56078 CA
Self-reported in NPPES; status is on the state search - Practice location
- 23928 Lyons Ave, Newhall, CA 91321
- Phone
- (661) 254-7216
- Enumerated
- Jul 19, 2006
- Record last updated
- Feb 9, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (661) 254-4830
- Medicare enrollment
- Enrolled (PECOS I20100803001145); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 1,443 in California → Look up another NPI →
Also registered at 23928 Lyons Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Steven Baron, MD PHDEndocrinology, Diabetes & Metabolism Physician1194886119
- Felix BarteCardiovascular Disease Physician1922119148
- Wendy Clough, M.D.Infectious Disease Physician1225077175
- Michael Jean, MDGastroenterology Physician1033163985
- Floyd Katske, M.D.Urology Physician1346340809
- Rajinder Kaushal, M.D.Gastroenterology Physician1285706259
Verify Himanshu Vajrin Wickramasinghe in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A56078Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
885 Medicare Part D claims for 144 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D.
Most prescribed
- Trelegy Ellipta172 claims
- Albuterol Sulfate Hfa69 claims
- Azithromycin62 claims
- Montelukast Sodium55 claims
- Prednisone53 claims
- Methylprednisolone43 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $733.77
27 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,806 providers of this specialty with any payment received $5,159.88 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
- Valencia Pulmonary Medical Group IncValencia, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Himanshu Vajrin Wickramasinghe among 1,443 pulmonary disease physician records in California
Himanshu Vajrin Wickramasinghe, M.D. is one of 1,443 pulmonary disease physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 51% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1990 · median 2002 among the 1,061 with a school on file
- Record last updated2012 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 pulmonary disease physician records list a practice address in Newhall
They are 4 of the 369 NPPES records with a practice address in Newhall, and 1,443 pulmonary disease physician records in California.
All 1,443 in California → Every provider in Newhall → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Rami El-Yousef, M.D.Newhall, CA 913211861750846
- Chand Khanna, M.D.Newhall, CA 913211699776302
- Charanjit Saroa, M.D.Newhall, CA 913211720089469
- Ramin Mehdian, M.D.Newbury Park, CA 913201053457127
- Jean Hawkins, MD FCCPNorthridge, CA 913241043328750
- Irfan Khan, M.D.Northridge, CA 913251538370861
- Robert Robertson, M. D.Northridge, CA 913251497778385
- Kasra Sedarati, M.D.Northridge, CA 913251851634356
Common questions
What is Himanshu Vajrin Wickramasinghe, M.D.'s NPI number?
Himanshu Vajrin Wickramasinghe, M.D.'s National Provider Identifier (NPI) is 1831118934, issued on Jul 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Himanshu Vajrin Wickramasinghe, M.D. located?
The NPPES record lists a practice address at 23928 Lyons Ave, Newhall, CA, 91321. Phone: (661) 254-7216. Providers update this record themselves, so call before visiting.
How can I verify Himanshu Vajrin Wickramasinghe, M.D.'s license?
NPPES lists California license number A56078, 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 Himanshu Vajrin Wickramasinghe, M.D. prescribe under Medicare Part D?
In 2024, Himanshu Vajrin Wickramasinghe, M.D. had 885 Medicare Part D claims for 144 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. Part D covers Medicare prescriptions only.
What is Himanshu Vajrin Wickramasinghe, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.