Cynthia Chienhsuan Peng, MD
Neurology Physician · Stanford, CA
Cynthia Chienhsuan Peng, MD is a neurology physician with a practice address in Stanford, California, and NPI 1922688308, issued on Apr 10, 2021. Check the license (California 9326, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Cynthia Chienhsuan Peng
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 9326 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Stanford, CA 94305
- Phone
- (650) 723-6661
- Enumerated
- Apr 10, 2021
- Record last updated
- Jul 7, 2023
- Fax
- (650) 498-6205
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 2,339 in California → Look up another NPI →
Also registered at 300 Pasteur Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Cynthia Chienhsuan Peng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 9326Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average neurology physician in 2024
94 Medicare Part D claims for 35 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
Most prescribed
- Donepezil Hcl13 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.
Cynthia Chienhsuan Peng among 2,339 neurology physician records in California
Cynthia Chienhsuan Peng, MD is one of 2,339 neurology 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 2021, is newer than 94% of them.
- NPI issued2021 · 94% of these records are older, 3% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- Record last updated2023 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
78 neurology physician records list a practice address in Stanford
They are 78 of the 5,606 NPPES records with a practice address in Stanford, and 2,339 neurology physician records in California.
All 2,339 in California → Every provider in Stanford → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Sheena Aurora, MBBSStanford, CA 943051346303716
- Leslie Dorfman, MDStanford, CA 943051255382065
- Jeffrey Dunn, MDStanford, CA 943051639123383
- Erik Ensrud, MDStanford, CA 943051982658738
- Anna Finley Caulfield, M.D.Stanford, CA 943051851358097
- Hideki Garren, MDStanford, CA 943051407807183
- Michael Greicius, MDStanford, CA 943051861443509
- Frank Longo, MD, PHDStanford, CA 943051801966254
Common questions
What is Cynthia Chienhsuan Peng, MD's NPI number?
Cynthia Chienhsuan Peng, MD's National Provider Identifier (NPI) is 1922688308, issued on Apr 10, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Cynthia Chienhsuan Peng, MD located?
The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-6661. Providers update this record themselves, so call before visiting.
How can I verify Cynthia Chienhsuan Peng, MD's license?
NPPES lists California license number 9326, 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 Cynthia Chienhsuan Peng, MD prescribe under Medicare Part D?
In 2024, Cynthia Chienhsuan Peng, MD had 94 Medicare Part D claims for 35 beneficiaries; the average among neurology physician prescribers was 1,370. 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.