Happy D. Thakkar, M.D.
Cardiovascular Disease Physician · Simi Valley, CA
Happy D. Thakkar, M.D. is a cardiovascular disease physician with a practice address in Simi Valley, California, and NPI 1932548377, issued on Jun 19, 2013. Check the license (California 143351, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Happy D. Thakkar
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 143351 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2655 1St St Ste 360, Simi Valley, CA 93065
- Phone
- (805) 583-7640
- Enumerated
- Jun 19, 2013
- Record last updated
- Jan 7, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (805) 583-7641
- Medicare enrollment
- Enrolled (PECOS I20191203002890); accepts Medicare assignment
- Medical or professional school
- Duke University School Of Medicine, 2013
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 2655 1St St Ste 360
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Megha Agarwal, M.D.Cardiovascular Disease Physician1508011958
- Lucia Dattoma, MDGeriatric Medicine (Internal Medicine) Physician1164628384
- Austin DavisFamily Medicine Physician1912438409
- Gregory Glover, M.D.Cardiovascular Disease Physician1396060638
- Jeffrey Harrell, M.D.Interventional Cardiology Physician1396058095
- Adrienne LenhartGastroenterology Physician1740608371
Verify Happy D. Thakkar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 143351Check 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% more Medicare Part D claims than the average cardiovascular disease physician in 2024
4,828 Medicare Part D claims for 606 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Rosuvastatin Calcium509 claims
- Amlodipine Besylate498 claims
- Atorvastatin Calcium475 claims
- Metoprolol Succinate386 claims
- Losartan Potassium288 claims
- Eliquis200 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 86.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- The Regents OF The University OF CaliforniaThousand Oaks, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Happy D. Thakkar among 2,574 cardiovascular disease physician records in California
Happy D. Thakkar, M.D. is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 82% of them.
- NPI issued2013 · 82% of these records are older, 16% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2013 · median 1999 among the 1,742 with a school on file
- Record last updated2020 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California.
All 2,574 in California → Every provider in Simi Valley → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Hosein Afshar, MD FACCSimi Valley, CA 930651841394913
- Megha Agarwal, M.D.Simi Valley, CA 930651508011958
- Arrash Fard, M.D.Simi Valley, CA 930651336491521
- Vijay Garg, MDSimi Valley, CA 930651790708782
- Gregory Glover, M.D.Simi Valley, CA 930651396060638
- Mohan Lakhani, MDSimi Valley, CA 930651568552370
- Forough Parsa, M.D.Simi Valley, CA 930651962449702
- Shahrzad Shareghi, M.D.Simi Valley, CA 930651811176720
Common questions
What is Happy D. Thakkar, M.D.'s NPI number?
Happy D. Thakkar, M.D.'s National Provider Identifier (NPI) is 1932548377, issued on Jun 19, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Happy D. Thakkar, M.D. located?
The NPPES record lists a practice address at 2655 1St St Ste 360, Simi Valley, CA, 93065. Phone: (805) 583-7640. Providers update this record themselves, so call before visiting.
How can I verify Happy D. Thakkar, M.D.'s license?
NPPES lists California license number 143351, 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 Happy D. Thakkar, M.D. prescribe under Medicare Part D?
In 2024, Happy D. Thakkar, M.D. had 4,828 Medicare Part D claims for 606 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
What is Happy D. Thakkar, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.