Charles T. Chen, M.D.
Internal Medicine Physician · Redlands, CA
Charles T. Chen, M.D. is an internal medicine physician with a practice address in Redlands, California, and NPI 1124050463, issued on Jul 7, 2006. Check the license (California A63693, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Charles T. Chen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A63693 CA
Self-reported in NPPES; status is on the state search - Practice location
- 236 Cajon St, Redlands, CA 92373
- Phone
- (909) 793-3311
- Enumerated
- Jul 7, 2006
- Record last updated
- Jan 18, 2026
- Medicaid ID
- 00A636930 CA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 236 Cajon St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kellie Allen, FNPFamily Nurse Practitioner1952612368
- Joseph Geierman, PHARMD APHPharmacist1942865225
- Edwin Lee, PA-CPhysician Assistant1942817267
Verify Charles T. Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A63693Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $121.81
1 payment: food and beverage; the largest payer was Novo Nordisk 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Charles T. Chen among 17,696 internal medicine physician records in California
Charles T. Chen, 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 fileNo · 63% of these records are
- 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).
56 internal medicine physician records list a practice address in Redlands
They are 56 of the 2,498 NPPES records with a practice address in Redlands, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Redlands → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jun Chiong, M.D., M.P.H.Redlands, CA 923731598730590
- Regan Douty, D.O.Redlands, CA 923731295766442
- Mamdooh Gayid, MDRedlands, CA 923731477554988
- Junku Kang, MDRedlands, CA 923731265474225
- Casey Kennedy, MDRedlands, CA 923731801839246
- Mohammad Osmani, MDRedlands, CA 923731568479483
- Moses Park, M.D.Redlands, CA 923731528079639
- Monroe Seiberling, M.D.Redlands, CA 923731740237783
Common questions
What is Charles T. Chen, M.D.'s NPI number?
Charles T. Chen, M.D.'s National Provider Identifier (NPI) is 1124050463, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Charles T. Chen, M.D. located?
The NPPES record lists a practice address at 236 Cajon St, Redlands, CA, 92373. Phone: (909) 793-3311. Providers update this record themselves, so call before visiting.
How can I verify Charles T. Chen, M.D.'s license?
NPPES lists California license number A63693, 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.
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.