Andrew Walter Wai, M.D.
Pediatrics Physician · Loma Linda, CA
Andrew Walter Wai, M.D. is a pediatrics physician with a practice address in Loma Linda, California, and NPI 1598057333, issued on May 12, 2011. Check the license (California A122799, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Andrew Walter Wai
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- A122799 CA
Self-reported in NPPES; status is on the state search - Practice location
- 25845 Barton RD, Loma Linda, CA 92354
- Phone
- (909) 558-2828
- Enumerated
- May 12, 2011
- Record last updated
- Aug 2, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150707003099); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2011
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Also registered at 25845 Barton RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Tanya GentryPediatrics Physician1881197200
- Tracy Gould, D.O.Pediatrics Physician1275989550
- Sabiha Kanchwala, MDPediatrics Physician1972715183
Verify Andrew Walter Wai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A122799Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average pediatrics physician in 2024
201 Medicare Part D claims for 21 beneficiaries, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 15 claims were for opioids.
Most prescribed
- Alprazolam13 claims
- Hydrocodone-Acetaminophen13 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): 85.2 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).
Bills Medicare through one group practice
- Faculty Physicians And Surgeons OF LlusmRedlands, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrew Walter Wai among 9,272 pediatrics physician records in California
Andrew Walter Wai, M.D. is one of 9,272 pediatrics physician records with a practice address in California. 31% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 66% of them.
- NPI issued2011 · 66% of these records are older, 31% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileYes · 8% of these records are
- Graduated2011 · median 2012 among the 754 with a school on file
- Record last updated2016 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
193 pediatrics physician records list a practice address in Loma Linda
They are 193 of the 4,863 NPPES records with a practice address in Loma Linda, and 9,272 pediatrics physician records in California.
All 9,272 in California → Every provider in Loma Linda → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Nerida Bates, MDLoma Linda, CA 923541154310860
- Robin Clark, M.D.Loma Linda, CA 923541902826498
- Ekua Cobbina, M.D.Loma Linda, CA 923541164454252
- Althea Daniel, M.D.Loma Linda, CA 923541619997103
- Janeth Ejike, M.D.Loma Linda, CA 923541871513366
- Edward Elmendorf, M.D.Loma Linda, CA 923541790705176
- Yvonne Fanous, M.D.Loma Linda, CA 923541912927302
- Maria Garberoglio, M.D.Loma Linda, CA 923541346260635
Common questions
What is Andrew Walter Wai, M.D.'s NPI number?
Andrew Walter Wai, M.D.'s National Provider Identifier (NPI) is 1598057333, issued on May 12, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Andrew Walter Wai, M.D. located?
The NPPES record lists a practice address at 25845 Barton RD, Loma Linda, CA, 92354. Phone: (909) 558-2828. Providers update this record themselves, so call before visiting.
How can I verify Andrew Walter Wai, M.D.'s license?
NPPES lists California license number A122799, 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 Andrew Walter Wai, M.D. prescribe under Medicare Part D?
In 2024, Andrew Walter Wai, M.D. had 201 Medicare Part D claims for 21 beneficiaries; the average among pediatrics physician prescribers was 375. Part D covers Medicare prescriptions only.
What is Andrew Walter Wai, M.D.'s MIPS final score?
The 2023 MIPS final score is 85.2 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.