Sindey K. Chung, MD
Geriatric Medicine (Internal Medicine) Physician · Mountain View, CA
Sindey K. Chung, MD is a geriatric medicine (internal medicine) physician with a practice address in Mountain View, California, and NPI 1043397987, issued on Oct 31, 2006. Check the license (California A69418, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sindey K. Chung
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- A69418 CA
Self-reported in NPPES; status is on the state search - Practice location
- 555 Castro St, Mountain View, CA 94041
- Phone
- (650) 903-3000
- Enumerated
- Oct 31, 2006
- Record last updated
- Dec 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A694180 CA
- Medicare enrollment
- Enrolled (PECOS I20050801000628); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 1997
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 532 in California → Look up another NPI →
Also registered at 555 Castro St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Danael Caywood, RNPFamily Nurse Practitioner1285744631
Verify Sindey K. Chung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A69418Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
3,537 Medicare Part D claims for 468 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 64 claims were for opioids.
Most prescribed
- Atorvastatin Calcium321 claims
- Amlodipine Besylate245 claims
- Levothyroxine Sodium168 claims
- Losartan Potassium165 claims
- Hydrochlorothiazide143 claims
- Atenolol114 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.
Bills Medicare through one group practice
- Permanente Medical Group IncSanta Clara, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sindey K. Chung among 532 geriatric medicine (internal medicine) physician records in California
Sindey K. Chung, MD is one of 532 geriatric medicine (internal medicine) physician records with a practice address in California. 77% 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, 46% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated1997 · median 1999 among the 271 with a school on file
- 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 207RG0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in California
There are 532 geriatric medicine (internal medicine) physician records in California.
All 532 in California → Every provider in Mountain View → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Tanu Garg, MDMountain View, CA 940401598898090
- Vibha Iyengar, M.D, MPHMountain View, CA 940401023279528
- Sophia Kim, M.D.Menlo Park, CA 940251801816467
- Neal Snyder, MDRedwood City, CA 940631215015862
- Mohammad Ranginwala, MDSan Bruno, CA 940661922150721
- Lily Chu, MDBurlingame, CA 940101639195506
- Amy Hsu, MDBurlingame, CA 940101346565660
- Elizabeth Landsverk, M.D.Burlingame, CA 940101144264581
Common questions
What is Sindey K. Chung, MD's NPI number?
Sindey K. Chung, MD's National Provider Identifier (NPI) is 1043397987, issued on Oct 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sindey K. Chung, MD located?
The NPPES record lists a practice address at 555 Castro St, Mountain View, CA, 94041. Phone: (650) 903-3000. Providers update this record themselves, so call before visiting.
How can I verify Sindey K. Chung, MD's license?
NPPES lists California license number A69418, 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 Sindey K. Chung, MD prescribe under Medicare Part D?
In 2024, Sindey K. Chung, MD had 3,537 Medicare Part D claims for 468 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.