Robert Yang, M.D.
Internal Medicine Physician · San Bernardino, CA
Robert Yang, M.D. is an internal medicine physician with a practice address in San Bernardino, California, and NPI 1619043163, issued on Nov 27, 2006. Check the license (California A64133, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert Yang
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A64133 CA
Self-reported in NPPES; status is on the state search - Practice location
- 406 E Vanderbilt Way, San Bernardino, CA 92408
- Phone
- (909) 433-0678
- Enumerated
- Nov 27, 2006
- Record last updated
- Sep 22, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (909) 433-0680
- Medicaid ID
- 00A641330 CA
- Medicare enrollment
- Enrolled (PECOS I20040414000297); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Robert Yang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A64133Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,358 Medicare Part D claims for 336 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 81 claims were for opioids.
Most prescribed
- Furosemide109 claims
- Cefdinir94 claims
- Hydrocodone-Acetaminophen61 claims
- Albuterol Sulfate Hfa53 claims
- Prednisone47 claims
- Carvedilol45 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.
Robert Yang among 17,696 internal medicine physician records in California
Robert Yang, M.D. 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
- Graduated1996 · median 2004 among the 11,065 with a school on file
- Record last updated2014 · 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).
58 internal medicine physician records list a practice address in San Bernardino
They are 58 of the 5,645 NPPES records with a practice address in San Bernardino, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Bernardino → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Roberto Contreras, M.D.San Bernardino, CA 924081316173404
- Tu Hoang, M.D.San Bernardino, CA 924081588696223
- Alma Palisoc, M.D.San Bernardino, CA 924081144277526
- Yolanda Mickevicius Ruokis, MDSan Bernardino, CA 924071952425316
- David Bolivar, M.D.San Bernardino, CA 924101801830609
- Cesia Garrido, MDSan Bernardino, CA 924101376120790
- Udoh Obioha, MDSan Bernardino, CA 924101154366946
- Wilson Gomer, MDSan Bernardino, CA 924111184656928
Common questions
What is Robert Yang, M.D.'s NPI number?
Robert Yang, M.D.'s National Provider Identifier (NPI) is 1619043163, issued on Nov 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Yang, M.D. located?
The NPPES record lists a practice address at 406 E Vanderbilt Way, San Bernardino, CA, 92408. Phone: (909) 433-0678. Providers update this record themselves, so call before visiting.
How can I verify Robert Yang, M.D.'s license?
NPPES lists California license number A64133, 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 Yang, M.D. prescribe under Medicare Part D?
In 2024, Robert Yang, M.D. had 1,358 Medicare Part D claims for 336 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.