Johnny Jaehwan Choi, M.D.
Internal Medicine Physician · Upland, CA
Johnny Jaehwan Choi, M.D. is an internal medicine physician with a practice address in Upland, California, and NPI 1376640714, issued on Sep 20, 2006. Check the license (California A97680, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Johnny Jaehwan Choi
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A97680 CA
222248 MA
Self-reported in NPPES; status is on the state search - Practice location
- 141 W Foothill Blvd, Upland, CA 91786
- Phone
- (909) 296-8800
- Enumerated
- Sep 20, 2006
- Record last updated
- Aug 30, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080417000237); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 141 W Foothill Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ashley Anders, FNP-CFamily Nurse Practitioner1346823523
- Caroline Chen-Rogers, DOFamily Medicine Physician1437656766
- Theresa Davis-Bates, FNPNurse Practitioner1104367135
- Kimberly Fung, FNP-BCPrimary Care Nurse Practitioner1780225391
- Cristina Perez, MSN, RN, FNPFamily Nurse Practitioner1861859084
- Terence Rhone, D.O.Pulmonary Disease Physician1932153582
Verify Johnny Jaehwan Choi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A97680Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
325 Medicare Part D claims for 112 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. 21 claims were for opioids.
Most prescribed
- Metoprolol Tartrate25 claims
- Hydrocodone-Acetaminophen20 claims
- Levofloxacin20 claims
- Metformin Hcl16 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: $404.03
9 payments; by number, the most common kind was food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). 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.
Bills Medicare through one group practice
- Razi Medical Group IncVictorville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Johnny Jaehwan Choi among 17,696 internal medicine physician records in California
Johnny Jaehwan Choi, 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
- Graduated2001 · median 2004 among the 11,065 with a school on file
- Record last updated2019 · 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).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Upland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Nahel Al Bouz, M.D.Upland, CA 917861326235136
- Susan Biegel, M.D.Upland, CA 917861710956412
- Michael Chai, M.D.Upland, CA 917861083748727
- Michael Creagan, MDUpland, CA 917861487813002
- David Engelhardt, M.D.Upland, CA 917861972595122
- Ghassan Hadi, M.D.Upland, CA 917861558497891
- Bhupal Kommineni, MD FACPUpland, CA 917861457324808
- Sarina Kular, M.D.Upland, CA 917861366484883
Common questions
What is Johnny Jaehwan Choi, M.D.'s NPI number?
Johnny Jaehwan Choi, M.D.'s National Provider Identifier (NPI) is 1376640714, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Johnny Jaehwan Choi, M.D. located?
The NPPES record lists a practice address at 141 W Foothill Blvd, Upland, CA, 91786. Phone: (909) 296-8800. Providers update this record themselves, so call before visiting.
How can I verify Johnny Jaehwan Choi, M.D.'s license?
NPPES lists California license number A97680, 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 Johnny Jaehwan Choi, M.D. prescribe under Medicare Part D?
In 2024, Johnny Jaehwan Choi, M.D. had 325 Medicare Part D claims for 112 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.