NPPES file of Aug 9, 2026

Arthur Daniel Wai-Yen Wong, MD

Internal Medicine Physician · San Diego, CA

Arthur Daniel Wai-Yen Wong, MD is an internal medicine physician with a practice address in San Diego, California, and NPI 1023639176, issued on Apr 29, 2020. Check the license (California A163178, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1023639176
Name
Arthur Daniel Wai-Yen Wong
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A163178 CA
Self-reported in NPPES; status is on the state search
Practice location
4222 Kansas St Unit 2, San Diego, CA 92104
Phone
(747) 218-8409
Enumerated
Apr 29, 2020
Record last updated
Feb 6, 2024
Medicare enrollment
Enrolled (PECOS I20200807002331); accepts Medicare assignment
Medical or professional school
Mcmaster Un, Michael Degroote School Of Medicine, 2012
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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Verify Arthur Daniel Wai-Yen Wong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A163178
    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
Open the California license search

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83% fewer Medicare Part D claims than the average internal medicine physician in 2024

539 Medicare Part D claims for 184 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 25 claims were for opioids.

  1. Arthur Wong539
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium43 claims
  2. Furosemide30 claims
  3. Metoprolol Tartrate26 claims
  4. Omeprazole24 claims
  5. Pradaxa18 claims
  6. Ciprofloxacin Hcl15 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): 73.6 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.

  1. Qualityout of 100 · 30% of the final score74.6
  2. Costout of 100 · 30%58.7
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupSan Diego, CA

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

Arthur Daniel Wai-Yen Wong among 17,696 internal medicine physician records in California

Arthur Daniel Wai-Yen Wong, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 89% of them.

  • NPI issued2020 · 89% of these records are older, 8% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2012 · median 2004 among the 11,065 with a school on file
  • Record last updated2024 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

961 internal medicine physician records list a practice address in San Diego

They are 961 of the 52,937 NPPES records with a practice address in San Diego, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Martha Benitez, DOSan Diego, CA 921041124521901
  2. Tsuh-Yin Chen, MDSan Diego, CA 921041093803520
  3. Arya LalithakumariSan Diego, CA 921041265874010
  4. Miles Stanich Md Inc, MDSan Diego, CA 921041700907771
  5. Jane BoydSan Diego, CA 921051861473191
  6. Lana Bridi, MDSan Diego, CA 921031033910971
  7. Joseph Delly, MDSan Diego, CA 921031992565576
  8. Sevag Hamamah, DOSan Diego, CA 921031972342061

Common questions

What is Arthur Daniel Wai-Yen Wong, MD's NPI number?

Arthur Daniel Wai-Yen Wong, MD's National Provider Identifier (NPI) is 1023639176, issued on Apr 29, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Arthur Daniel Wai-Yen Wong, MD located?

The NPPES record lists a practice address at 4222 Kansas St Unit 2, San Diego, CA, 92104. Phone: (747) 218-8409. Providers update this record themselves, so call before visiting.

How can I verify Arthur Daniel Wai-Yen Wong, MD's license?

NPPES lists California license number A163178, 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 Arthur Daniel Wai-Yen Wong, MD prescribe under Medicare Part D?

In 2024, Arthur Daniel Wai-Yen Wong, MD had 539 Medicare Part D claims for 184 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Arthur Daniel Wai-Yen Wong, MD's MIPS final score?

The 2023 MIPS final score is 73.6 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.