Stephanie Martha Chiu, NP
Nurse Practitioner · Walnut Creek, CA
Stephanie Martha Chiu, NP is a nurse practitioner with a practice address in Walnut Creek, California, and NPI 1043091663, issued on Oct 10, 2023. Check the license (California 95027633, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Stephanie Martha Chiu
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 95027633 CA
Self-reported in NPPES; status is on the state search - Practice location
- 500 Lennon LN, Walnut Creek, CA 94598
- Phone
- (925) 939-9610
- Enumerated
- Oct 10, 2023
- Record last updated
- Oct 10, 2023
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 500 Lennon LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Vivian Park, N.P.Adult Health Nurse Practitioner1932533452
- Gauri Sharma, D.O.Hematology & Oncology Physician1528234002
Verify Stephanie Martha Chiu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95027633Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% fewer Medicare Part D claims than the average nurse practitioner in 2024
584 Medicare Part D claims for 158 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 14 claims were for opioids.
Most prescribed
- Ondansetron Odt51 claims
- Prochlorperazine Maleate50 claims
- Lorazepam42 claims
- Acyclovir30 claims
- Revlimid26 claims
- Dexamethasone25 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.
Industry payments in 2024: $4,661.28
185 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Stephanie Martha Chiu among 8,223 nurse practitioner records in California
Stephanie Martha Chiu, 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 2023, is newer than 82% of them.
- NPI issued2023 · 82% of these records are older, 13% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 42% of these records are
- Record last updated2023 · 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).
70 nurse practitioner records list a practice address in Walnut Creek
They are 70 of the 6,170 NPPES records with a practice address in Walnut Creek, and 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in Walnut Creek → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Sarah Berg, NPWalnut Creek, CA 945981427062975
- Emily Brama, RN, MSN, FNP, NP-CWalnut Creek, CA 945981952696684
- Sarah Buenviaje, M.S.N., O.N.P.Walnut Creek, CA 945981588716971
- Kathleen Fitterer, N.P.Walnut Creek, CA 945981649439126
- Allison Hanson, NPWalnut Creek, CA 945981376537589
- Amy Inouye, NPWalnut Creek, CA 945981780740332
- Olga Izmaylova, NPWalnut Creek, CA 945981568647543
- Leah Juhle, MSN, NP-CWalnut Creek, CA 945981255570750
Common questions
What is Stephanie Martha Chiu, NP's NPI number?
Stephanie Martha Chiu, NP's National Provider Identifier (NPI) is 1043091663, issued on Oct 10, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Stephanie Martha Chiu, NP located?
The NPPES record lists a practice address at 500 Lennon LN, Walnut Creek, CA, 94598. Phone: (925) 939-9610. Providers update this record themselves, so call before visiting.
How can I verify Stephanie Martha Chiu, NP's license?
NPPES lists California license number 95027633, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Stephanie Martha Chiu, NP prescribe under Medicare Part D?
In 2024, Stephanie Martha Chiu, NP had 584 Medicare Part D claims for 158 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.