NPPES file of Aug 9, 2026

Yajuan Zhong Leonard, APRN

Nurse Practitioner · Walnut Creek, CA

Yajuan Zhong Leonard, APRN is a nurse practitioner with a practice address in Walnut Creek, California, and NPI 1336160456, issued on Jul 22, 2006. Check the license (California NPF15476, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1336160456
Name
Yajuan Zhong Leonard
Credential
APRN
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
NPF15476 CA
110739 NE
Self-reported in NPPES; status is on the state search
Practice location
1450 Treat Blvd # 250, Walnut Creek, CA 94597
Phone
(925) 974-4144
Enumerated
Jul 22, 2006
Record last updated
Jun 22, 2023
Medicare enrollment
Enrolled (PECOS I20230707000687); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1450 Treat Blvd # 250

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jacqueline Reams, FMHPNPPsychiatric/Mental Health Nurse Practitioner1558687475

Verify Yajuan Zhong Leonard in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license NPF15476
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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82% more Medicare Part D claims than the average nurse practitioner in 2024

2,013 Medicare Part D claims for 228 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.

  1. Yajuan Leonard2,013
  2. Specialty average1,109

Most prescribed

  1. Lamotrigine200 claims
  2. Lorazepam155 claims
  3. Desvenlafaxine Succinate Er134 claims
  4. Quetiapine Fumarate123 claims
  5. Duloxetine Hcl122 claims
  6. Mirtazapine122 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: $41.37

2 payments; by number, the most common kind was food and beverage; the largest payer was Tempus AI, Inc. 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.

  1. Yajuan Leonard$41.37
  2. Specialty average$791.64

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. John Muir Physician NetworkWalnut Creek, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Yajuan Zhong Leonard among 8,223 nurse practitioner records in California

Yajuan Zhong Leonard, APRN 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 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 82% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated2004 · median 2017 among the 3,425 with a school on file
  • 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.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Janette CarlinWalnut Creek, CA 945971992382246
  2. Allison Friede, NPWalnut Creek, CA 945971245794098
  3. Helen Lu, FNPWalnut Creek, CA 945971639510332
  4. Maki Matsumura, NP-CWalnut Creek, CA 945971013316488
  5. Puja Sarna, NPWalnut Creek, CA 945971609322817
  6. Karen Sonnenthal, N.P.Walnut Creek, CA 945971942229463
  7. Renita Vinluan-Fan, NPWalnut Creek, CA 945971265765754
  8. Sarah Berg, NPWalnut Creek, CA 945981427062975

Common questions

What is Yajuan Zhong Leonard, APRN's NPI number?

Yajuan Zhong Leonard, APRN's National Provider Identifier (NPI) is 1336160456, issued on Jul 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Yajuan Zhong Leonard, APRN located?

The NPPES record lists a practice address at 1450 Treat Blvd # 250, Walnut Creek, CA, 94597. Phone: (925) 974-4144. Providers update this record themselves, so call before visiting.

How can I verify Yajuan Zhong Leonard, APRN's license?

NPPES lists California license number NPF15476, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Yajuan Zhong Leonard, APRN prescribe under Medicare Part D?

In 2024, Yajuan Zhong Leonard, APRN had 2,013 Medicare Part D claims for 228 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.