Hyeun Sook Chon, NP
Nurse Practitioner · Palo Alto, CA
Hyeun Sook Chon, NP is a nurse practitioner with a practice address in Palo Alto, California, and NPI 1598217267, issued on Oct 28, 2016. Check the license (California 95005342, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Hyeun Sook Chon
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 95005342 CA
Self-reported in NPPES; status is on the state search - Practice location
- 900 Blake Wilbur Dr, Palo Alto, CA 94304
- Phone
- (650) 498-7999
- Enumerated
- Oct 28, 2016
- Record last updated
- May 30, 2024
- Fax
- (650) 724-9454
- Medicare enrollment
- Enrolled (PECOS I20161228001070); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 900 Blake Wilbur Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Hyeun Sook Chon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95005342Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average nurse practitioner in 2024
105 Medicare Part D claims for 27 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium11 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 practice group's MIPS final score for 2023 (Medicare payment program): 76.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
One hospital affiliation
- Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Hyeun Sook Chon among 8,223 nurse practitioner records in California
Hyeun Sook Chon, NP is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 48% of them.
- NPI issued2016 · 48% of these records are older, 48% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Graduated2016 · median 2017 among the 3,425 with a school on file
- Record last updated2024 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
318 nurse practitioner records list a practice address in Palo Alto
They are 318 of the 7,617 NPPES records with a practice address in Palo Alto, and 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in Palo Alto → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Claire Abrajano, P.N.P.Palo Alto, CA 943041427147040
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- Kristine Boyle, NPPalo Alto, CA 943041649368861
- Kathryn Esperance, R.N.P.Palo Alto, CA 943041316093768
- Kari Ksar, NPPalo Alto, CA 943041285790410
- Onica Kuch, NPPalo Alto, CA 943041588615181
- Tara Anne Laureano, NPPalo Alto, CA 943041720002322
Common questions
What is Hyeun Sook Chon, NP's NPI number?
Hyeun Sook Chon, NP's National Provider Identifier (NPI) is 1598217267, issued on Oct 28, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Hyeun Sook Chon, NP located?
The NPPES record lists a practice address at 900 Blake Wilbur Dr, Palo Alto, CA, 94304. Phone: (650) 498-7999. Providers update this record themselves, so call before visiting.
How can I verify Hyeun Sook Chon, NP's license?
NPPES lists California license number 95005342, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Hyeun Sook Chon, NP prescribe under Medicare Part D?
In 2024, Hyeun Sook Chon, NP had 105 Medicare Part D claims for 27 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Hyeun Sook Chon, NP's MIPS final score?
The 2023 MIPS final score is 76.5 of 100, reported for the practice group. 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.