Mandeep Ayer, M.D.
Internal Medicine Physician · Los Gatos, CA
Mandeep Ayer, M.D. is an internal medicine physician with a practice address in Los Gatos, California, and NPI 1205817111, issued on Nov 8, 2005. Check the license (California A42228, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mandeep Ayer
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A42228 CA
Self-reported in NPPES; status is on the state search - Practice location
- 14981 National Ave, Los Gatos, CA 95032
- Phone
- (408) 358-1811
- Enumerated
- Nov 8, 2005
- Record last updated
- May 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (408) 358-7961
- Medicare enrollment
- Enrolled (PECOS I20091104000240); 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 14981 National Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gopi Ayer, M.D.Internal Medicine Physician1396701512
- James Davilla, M.D.Specialist1285625533
- Orval Eshelman, M.D.Clinical & Laboratory Dermatological Immunology Physician1366445116
- Christine Haskell, LPN-SFALicensed Practical Nurse1811023583
- George Hsieh, MD, FAADDermatology Physician1437296399
Verify Mandeep Ayer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A42228Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average internal medicine physician in 2024
7,031 Medicare Part D claims for 546 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 105 claims were for opioids.
Most prescribed
- Atorvastatin Calcium620 claims
- Levothyroxine Sodium473 claims
- Amlodipine Besylate332 claims
- Metoprolol Succinate187 claims
- Valsartan-Hydrochlorothiazide165 claims
- Rosuvastatin Calcium164 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 MIPS final score for 2023 (Medicare payment program): 87.8 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $326.68
16 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. 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.
Mandeep Ayer among 17,696 internal medicine physician records in California
Mandeep Ayer, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1978 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 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).
47 internal medicine physician records list a practice address in Los Gatos
They are 47 of the 1,905 NPPES records with a practice address in Los Gatos, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Los Gatos → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Gopi Ayer, M.D.Los Gatos, CA 950321396701512
- Richard Bobis, M.D.Los Gatos, CA 950321407813843
- Edward Brooks, MDLos Gatos, CA 950321831162338
- Andrew Chi, MD MPHLos Gatos, CA 950321700861275
- Jane Chien, MDLos Gatos, CA 950321588620785
- Linda Eglin, MDLos Gatos, CA 950321144223611
- Stacey Hein, INTERNAL MEDICINELos Gatos, CA 950321568429983
- Darryl Hein, M.D.Los Gatos, CA 950321124077227
Common questions
What is Mandeep Ayer, M.D.'s NPI number?
Mandeep Ayer, M.D.'s National Provider Identifier (NPI) is 1205817111, issued on Nov 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mandeep Ayer, M.D. located?
The NPPES record lists a practice address at 14981 National Ave, Los Gatos, CA, 95032. Phone: (408) 358-1811. Providers update this record themselves, so call before visiting.
How can I verify Mandeep Ayer, M.D.'s license?
NPPES lists California license number A42228, 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 Mandeep Ayer, M.D. prescribe under Medicare Part D?
In 2024, Mandeep Ayer, M.D. had 7,031 Medicare Part D claims for 546 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Mandeep Ayer, M.D.'s MIPS final score?
The 2023 MIPS final score is 87.8 of 100. 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.