Arun Villivalam, M.D,
Family Medicine Physician · Los Gatos, CA
Arun Villivalam, M.D, is a family medicine physician with a practice address in Los Gatos, California, and NPI 1639355944, issued on Jan 16, 2008. Check the license (California A73520, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Arun Villivalam
- Credential
- M.D,
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A73520 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15195 National Ave, Los Gatos, CA 95032
- Phone
- (408) 502-6040
- Enumerated
- Jan 16, 2008
- Record last updated
- Apr 29, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (408) 502-6040
- Medicare enrollment
- Enrolled (PECOS I20131017000361); accepts Medicare assignment
- Medical or professional school
- Jefferson Medical College Of Thomas Jefferson University, 1998
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 15195 National Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Arun Villivalam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A73520Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% fewer Medicare Part D claims than the average family medicine physician in 2024
3,002 Medicare Part D claims for 331 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Rosuvastatin Calcium351 claims
- Atorvastatin Calcium319 claims
- Levothyroxine Sodium206 claims
- Metformin Hcl Er152 claims
- Amlodipine Besylate100 claims
- Losartan Potassium80 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.
Arun Villivalam among 17,133 family medicine physician records in California
Arun Villivalam, M.D, is one of 17,133 family medicine physician records with a practice address in California. 81% 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 53% of them.
- NPI issued2008 · 53% of these records are older, 42% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1998 · median 2005 among the 10,652 with a school on file
- Record last updated2016 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
45 family medicine physician records list a practice address in Los Gatos
They are 45 of the 1,905 NPPES records with a practice address in Los Gatos, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Los Gatos → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- William Broad, MDLos Gatos, CA 950321750374591
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- Mary Defigard, MDLos Gatos, CA 950321710914791
- Dewey Duckham, M.D.Los Gatos, CA 950321356369508
- Timothy Jen, M.D.Los Gatos, CA 950321013944628
- Neeraj Kochhar, MDLos Gatos, CA 950321033180294
- Thao Nguyen, MDLos Gatos, CA 950321619909975
- Arthur Polussa, M.D.Los Gatos, CA 950321629062021
Common questions
What is Arun Villivalam, M.D,'s NPI number?
Arun Villivalam, M.D,'s National Provider Identifier (NPI) is 1639355944, issued on Jan 16, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Arun Villivalam, M.D, located?
The NPPES record lists a practice address at 15195 National Ave, Los Gatos, CA, 95032. Phone: (408) 502-6040. Providers update this record themselves, so call before visiting.
How can I verify Arun Villivalam, M.D,'s license?
NPPES lists California license number A73520, 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 Arun Villivalam, M.D, prescribe under Medicare Part D?
In 2024, Arun Villivalam, M.D, had 3,002 Medicare Part D claims for 331 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.