Stephanie Kay Chiao
Addiction Psychiatry Physician · Mountain View, CA
Stephanie Kay Chiao is an addiction psychiatry physician with a practice address in Mountain View, California, and NPI 1780071498, issued on Apr 20, 2015. Check the license (California A183070, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephanie Kay Chiao
- Primary taxonomy
- Addiction Psychiatry Physician 2084P0802X
- License number
- A183070 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1580 W EL Camino Real Ste 2, Mountain View, CA 94040
- Phone
- (201) 472-5029
- Enumerated
- Apr 20, 2015
- Record last updated
- Jul 2, 2025
- Fax
- (650) 481-9470
- Entity
- Type 1 · individual
8 nearest addiction psychiatry physician records → All 73 in California → Look up another NPI →
Also registered at 1580 W EL Camino Real Ste 2
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shiri Porat, MA, LMFTMarriage & Family Therapist1639855315
- Gabriela Stern, MSW, LCSWClinical Social Worker1790584928
- Brandy Vanderheiden, MFTMarriage & Family Therapist1609142868
Verify Stephanie Kay Chiao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A183070Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average addiction psychiatry physician in 2024
35 Medicare Part D claims, against an average of 716 among the 421 providers of this specialty who prescribed in Part D.
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): 100 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).
Stephanie Kay Chiao among 73 addiction psychiatry physician records in California
Stephanie Kay Chiao is one of 73 addiction psychiatry physician records with a practice address in California. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 79% of them.
- NPI issued2015 · 79% of these records are older, 16% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 34% of these records are
- Record last updated2025 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0802X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Addiction Psychiatry Physician providers in California
There are 73 addiction psychiatry physician records in California.
All 73 in California → Every provider in Mountain View → Addiction Psychiatry Physician nationwide →
The 8 addiction psychiatry physician records with the nearest ZIP codes
- Ori-Michael Benhamou, M.D.Mountain View, CA 940401194169052
- Stephen Richmond, M.D.Menlo Park, CA 940251013051143
- Adam Berns, MDWoodside, CA 940621669835047
- Emjay Tan, M.D.San Bruno, CA 940661124244090
- David Pating, MDSan Francisco, CA 941151801974456
- Stephen Leung, MDSan Francisco, CA 941211609305127
- John Straznickas, M.D.San Francisco, CA 941211548291164
- James Armontrout, MDPalo Alto, CA 943041215202403
Common questions
What is Stephanie Kay Chiao's NPI number?
Stephanie Kay Chiao's National Provider Identifier (NPI) is 1780071498, issued on Apr 20, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Stephanie Kay Chiao located?
The NPPES record lists a practice address at 1580 W EL Camino Real Ste 2, Mountain View, CA, 94040. Phone: (201) 472-5029. Providers update this record themselves, so call before visiting.
How can I verify Stephanie Kay Chiao's license?
NPPES lists California license number A183070, 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 Stephanie Kay Chiao prescribe under Medicare Part D?
In 2024, Stephanie Kay Chiao had 35 Medicare Part D claims; the average among addiction psychiatry physician prescribers was 716. Part D covers Medicare prescriptions only.
What is Stephanie Kay Chiao's MIPS final score?
The 2023 MIPS final score is 100 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.