Robert Wing Chan, MD
Internal Medicine Physician · Alhambra, CA
Robert Wing Chan, MD is an internal medicine physician with a practice address in Alhambra, California, and NPI 1508826488, issued on Mar 24, 2006. Check the license (California A67678, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert Wing Chan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A67678 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1234 South Garfield Avenue, Alhambra, CA 91801
- Phone
- (626) 576-7871
- Enumerated
- Mar 24, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (626) 576-7872
- Medicaid ID
- 00A676780 CA
- Medicare enrollment
- Enrolled (PECOS I20100922001167); accepts Medicare assignment
- Medical or professional school
- University Of California, Irvine, California College Of Medicine, 1997
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Robert Wing Chan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A67678Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8.2 times the Medicare Part D claims of the average internal medicine physician in 2024
26,021 Medicare Part D claims for 868 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 30 claims were for opioids.
Most prescribed
- Atorvastatin Calcium2,046 claims
- Losartan Potassium1,275 claims
- Amlodipine Besylate1,271 claims
- Rosuvastatin Calcium884 claims
- Farxiga863 claims
- Metoprolol Succinate827 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: $624.23
21 payments; by number, the most common kind was food and beverage; the largest payer was Exact Sciences Corporation. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Robert Wing Chan among 17,696 internal medicine physician records in California
Robert Wing Chan, 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1997 · median 2004 among the 11,065 with a school on file
- Record last updated2026 · 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).
41 internal medicine physician records list a practice address in Alhambra
They are 41 of the 1,802 NPPES records with a practice address in Alhambra, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Alhambra → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Alexander Chan, MDAlhambra, CA 918011467413666
- Joyce Chang, M.D.Alhambra, CA 918011952357600
- Max Chiou, MDAlhambra, CA 918011316963051
- Jin Hong, M.D.Alhambra, CA 918011972516441
- Thein Htay, M.D.Alhambra, CA 918011861594228
- Nu Khin, M.D.Alhambra, CA 918011881655199
- Eddie Lam, M.D.Alhambra, CA 918011518969971
- Byron Hsieh-Lun Lin, M.D.Alhambra, CA 918011104866649
Common questions
What is Robert Wing Chan, MD's NPI number?
Robert Wing Chan, MD's National Provider Identifier (NPI) is 1508826488, issued on Mar 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Wing Chan, MD located?
The NPPES record lists a practice address at 1234 South Garfield Avenue, Alhambra, CA, 91801. Phone: (626) 576-7871. Providers update this record themselves, so call before visiting.
How can I verify Robert Wing Chan, MD's license?
NPPES lists California license number A67678, 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 Robert Wing Chan, MD prescribe under Medicare Part D?
In 2024, Robert Wing Chan, MD had 26,021 Medicare Part D claims for 868 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.