Physician Profile
Unclaimed ProfileAbout LEONG
Wayne Chih Wing Leong, M.D. is a healthcare provider in Oakland, CA specialising in internal medicine. Wayne trained at University of California, San Diego School of Medicine, graduating in 1992.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Leong specialise in?
Dr. Leong is an internal medicine in Oakland, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where is Dr. Leong located?
Dr. Leong is listed at 275 W MACARTHUR BLVD, Oakland, CA 94611. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Leong's phone number?
The number on file is (510) 913-2486. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Leong's NPI number?
Dr. Leong's National Provider Identifier is 1023196102. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Leong go to medical school?
Dr. Leong attended University of California, San Diego School of Medicine, graduating in 1992. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Leong been practising?
Dr. Leong has 34 years experience. Calculated from a graduation year of 1992, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Leong do most often?
According to Medicare billing data, Dr. Leong the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Leong confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Leong. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (510) 913-2486
- Email not available
Practice Locations
275 W MACARTHUR BLVD
Oakland, CA 94611
Procedures Most Often Billed to Medicare
83 services · 38 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
72 |
| Hospital discharge day management, 30 minutes or less | Office visit | 99238 |
11 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internal medicines at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 23 related providers in 3 groups
Other internal medicines in Oakland 8
Same specialty, same city.
Trained at University of California, San Diego School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1992 at University of California, San Diego School of Medicine 7
Providers who graduated from the same medical school in the same year.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.