NPPES file of Aug 9, 2026

Christopher Michael Wong, MD

Internal Medicine Physician · Rosemead, CA

Christopher Michael Wong, MD is an internal medicine physician with a practice address in Rosemead, California, and NPI 1124020623, issued on Aug 15, 2005. Check the license (California A63500, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1124020623
Name
Christopher Michael Wong
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A63500 CA
Self-reported in NPPES; status is on the state search
Practice location
8622 Garvey Ave, Rosemead, CA 91770
Phone
(626) 280-6898
Enumerated
Aug 15, 2005
Record last updated
Dec 11, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(626) 280-6899
Medicaid ID
00A635000 CA
Medicare enrollment
Enrolled (PECOS I20060911000394); accepts Medicare assignment
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 8622 Garvey Ave

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

  1. Harold Hsu, M.D.Internal Medicine Physician1770508111

Verify Christopher Michael 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 A63500
    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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40% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,909 Medicare Part D claims for 123 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 22 claims were for opioids.

  1. Christopher Wong1,909
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium121 claims
  2. Losartan Potassium93 claims
  3. Celecoxib87 claims
  4. Metformin Hcl64 claims
  5. Amlodipine Besylate61 claims
  6. Metoprolol Tartrate60 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: $39.18

2 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Christopher Wong$39.18
  2. Specialty average$1,303.06

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. County OF Los AngelesEl Monte, CA

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

Christopher Michael Wong among 17,696 internal medicine physician records in California

Christopher Michael 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 95% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1986 · median 2004 among the 11,065 with a school on file
  • Record last updated2009 · 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).

14 internal medicine physician records list a practice address in Rosemead

They are 14 of the 839 NPPES records with a practice address in Rosemead, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Andy Chen, MDRosemead, CA 917701831153659
  2. Kelvin Chen, MDRosemead, CA 917701225387137
  3. Josephine Choa, M.D.Rosemead, CA 917701356384408
  4. Han Duong, M.D.& D.O.Rosemead, CA 917701013070234
  5. Susan Heller, M.D.Rosemead, CA 917701720251929
  6. Harold Hsu, M.D.Rosemead, CA 917701770508111
  7. Son Le, M.D.Rosemead, CA 917701942290762
  8. Tam Le, M.DRosemead, CA 917701154480077

Common questions

What is Christopher Michael Wong, MD's NPI number?

Christopher Michael Wong, MD's National Provider Identifier (NPI) is 1124020623, issued on Aug 15, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Christopher Michael Wong, MD located?

The NPPES record lists a practice address at 8622 Garvey Ave, Rosemead, CA, 91770. Phone: (626) 280-6898. Providers update this record themselves, so call before visiting.

How can I verify Christopher Michael Wong, MD's license?

NPPES lists California license number A63500, 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 Christopher Michael Wong, MD prescribe under Medicare Part D?

In 2024, Christopher Michael Wong, MD had 1,909 Medicare Part D claims for 123 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.