Timothy Nieh, DO
Family Medicine Physician · Mountain View, CA
Timothy Nieh, DO is a family medicine physician with a practice address in Mountain View, California, and NPI 1003375866, issued on Mar 19, 2019. Check the license (California 20A19968, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Timothy Nieh
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A19968 CA
Self-reported in NPPES; status is on the state search - Practice location
- 701 E EL Camino Real, Mountain View, CA 94040
- Phone
- (650) 404-8370
- Enumerated
- Mar 19, 2019
- Record last updated
- Aug 29, 2022
- Medicare enrollment
- Enrolled (PECOS I20220830004621); accepts Medicare assignment
- Medical or professional school
- Touro Un College Of Osteopathic Medicine, Vallejo, 2019
- 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 701 E EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Timothy Nieh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A19968Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% fewer Medicare Part D claims than the average family medicine physician in 2024
1,419 Medicare Part D claims for 203 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 15 claims were for opioids.
Most prescribed
- Atorvastatin Calcium125 claims
- Levothyroxine Sodium73 claims
- Amlodipine Besylate72 claims
- Losartan Potassium54 claims
- Lisinopril46 claims
- Tamsulosin Hcl42 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
- Sutter Bay Medical FoundationLos Altos, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Timothy Nieh among 17,133 family medicine physician records in California
Timothy Nieh, DO 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 2019, is newer than 85% of them.
- NPI issued2019 · 85% of these records are older, 12% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2019 · median 2005 among the 10,652 with a school on file
- Record last updated2022 · 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).
60 family medicine physician records list a practice address in Mountain View
They are 60 of the 2,467 NPPES records with a practice address in Mountain View, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Mountain View → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Mala Ahluwalia, MDMountain View, CA 940401831144898
- Philip Brosterhous, MDMountain View, CA 940401700847092
- Calvin Chen, MDMountain View, CA 940401659369544
- Christopher Chin, MDMountain View, CA 940401194776401
- Yaara Dror, MDMountain View, CA 940401457307084
- Patricia Einarson, MD, MBAMountain View, CA 940401750375796
- Fannie Huang, MDMountain View, CA 940401750321931
- James Laroy, M.DMountain View, CA 940401043265226
Common questions
What is Timothy Nieh, DO's NPI number?
Timothy Nieh, DO's National Provider Identifier (NPI) is 1003375866, issued on Mar 19, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Nieh, DO located?
The NPPES record lists a practice address at 701 E EL Camino Real, Mountain View, CA, 94040. Phone: (650) 404-8370. Providers update this record themselves, so call before visiting.
How can I verify Timothy Nieh, DO's license?
NPPES lists California license number 20A19968, 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 Timothy Nieh, DO prescribe under Medicare Part D?
In 2024, Timothy Nieh, DO had 1,419 Medicare Part D claims for 203 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.