Wayne Chih Wing Leong, M.D.
Hospitalist Physician · Oakland, CA
Wayne Chih Wing Leong, M.D. is a hospitalist physician with a practice address in Oakland, California, and NPI 1023196102, issued on Nov 2, 2006. Check the license (California G78793, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Wayne Chih Wing Leong
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- G78793 CA
Self-reported in NPPES; status is on the state search - Practice location
- 275 W Macarthur Blvd, Oakland, CA 94611
- Phone
- (510) 913-2486
- Enumerated
- Nov 2, 2006
- Record last updated
- Dec 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (510) 752-1610
- Medicaid ID
- 00G787930 CA
- Medicare enrollment
- Enrolled (PECOS I20110415000496); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 1992
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 275 W Macarthur Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Brittany Abeldt, MDPsychiatry Physician1982353884
- Bilal Abu-Alrub, DOStudent in an Organized Health Care Education/Training Program1609760768
- Walter Acuna, MDInternal Medicine Physician1972655108
- Brett Adams, MDStudent in an Organized Health Care Education/Training Program1841731098
Verify Wayne Chih Wing Leong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G78793Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average hospitalist physician in 2024
129 Medicare Part D claims for 52 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
Most prescribed
- Furosemide14 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: $108.11
1 payment: food and beverage; the largest payer was Radius Health, Inc. The 7,324 providers of this specialty with any payment received $494.84 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.
Bills Medicare through one group practice
- Permanente Medical Group IncOakland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Wayne Chih Wing Leong among 3,099 hospitalist physician records in California
Wayne Chih Wing Leong, M.D. is one of 3,099 hospitalist physician records with a practice address in California. 90% 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, 73% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated1992 · median 2010 among the 2,505 with a school on file
- Record last updated2021 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Oakland → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Juan Asenjo, MDOakland, CA 946111609954486
- Steven Coppola, MDOakland, CA 946111366520132
- Jennifer Dykes, MDOakland, CA 946111184731580
- Emory Fong, MDOakland, CA 946111184702979
- Annie Hovsepian, MDOakland, CA 946111518045301
- Jeffrey Ilfeld, MDOakland, CA 946111982782777
- Aubrey Ingraham, MDOakland, CA 946111316025984
- Cary Lee, MDOakland, CA 946111871671644
Common questions
What is Wayne Chih Wing Leong, M.D.'s NPI number?
Wayne Chih Wing Leong, M.D.'s National Provider Identifier (NPI) is 1023196102, issued on Nov 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Wayne Chih Wing Leong, M.D. located?
The NPPES record lists a practice address at 275 W Macarthur Blvd, Oakland, CA, 94611. Phone: (510) 913-2486. Providers update this record themselves, so call before visiting.
How can I verify Wayne Chih Wing Leong, M.D.'s license?
NPPES lists California license number G78793, 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 Wayne Chih Wing Leong, M.D. prescribe under Medicare Part D?
In 2024, Wayne Chih Wing Leong, M.D. had 129 Medicare Part D claims for 52 beneficiaries; the average among hospitalist physician prescribers was 521. 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.