Ji Yon Kwon, M.D.
Internal Medicine Physician · Marriottsville, MD
Ji Yon Kwon, M.D. is an internal medicine physician with a practice address in Marriottsville, Maryland, and NPI 1992145460, issued on Jun 28, 2013. Check the license (Maryland D81315, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Ji Yon Kwon
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D81315 MD
Self-reported in NPPES; status is on the state search - Practice location
- 2400 Longstone LN Ste 106, Marriottsville, MD 21104
- Phone
- (410) 480-1895
- Enumerated
- Jun 28, 2013
- Record last updated
- Dec 27, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (410) 480-4955
- Medicare enrollment
- Enrolled (PECOS I20160809002278); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 2400 Longstone LN Ste 106
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Bower, MDInternal Medicine Physician1871552265
- Mahfuzul Khan, M.D.Endocrinology, Diabetes & Metabolism Physician1760625701
Verify Ji Yon Kwon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D81315Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average internal medicine physician in 2024
7,456 Medicare Part D claims for 608 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 40 claims were for opioids.
Most prescribed
- Atorvastatin Calcium957 claims
- Amlodipine Besylate382 claims
- Losartan Potassium375 claims
- Metformin Hcl335 claims
- Fluticasone Propionate297 claims
- Pantoprazole Sodium207 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: $20.67
1 payment: food and beverage; the largest payer was Smith+Nephew, 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.
Bills Medicare through one group practice
- Maryland Family Care IncBaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
4 internal medicine physician records list a practice address in Marriottsville
They are 4 of the 77 NPPES records with a practice address in Marriottsville, and 3,904 internal medicine physician records in Maryland.
All 4 in Marriottsville → All 3,904 in Maryland → Every provider in Marriottsville →
Other internal medicine physician records in Maryland
- Eduardo Abarca Rojas, M.D.Parkville, MD1538447628
- Rasheed Abassi, M.D.Clinton, MD1376608620
- Ghulam Abbas, MDFrederick, MD1477658045
- Shamima Abbas, MDKensington, MD1750445896
- Nourelhuda Abbas Hamed, MDSilver Spring, MD1699339473
- Arsalan Abbasi, MDWestminster, MD1942762604
- Hamdi AbdeenGaithersburg, MD1245972413
- Mukemil Abdella, M.D.Glenn Dale, MD1871603381
- Suzan Abdo, MDClarksville, MD1588631824
- Madeeha Abdul GhaffarElkton, MD1194276063
Common questions
What is Ji Yon Kwon, M.D.'s NPI number?
Ji Yon Kwon, M.D.'s National Provider Identifier (NPI) is 1992145460, issued on Jun 28, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Ji Yon Kwon, M.D. located?
The NPPES record lists a practice address at 2400 Longstone LN Ste 106, Marriottsville, MD, 21104. Phone: (410) 480-1895. Providers update this record themselves, so call before visiting.
How can I verify Ji Yon Kwon, M.D.'s license?
NPPES lists Maryland license number D81315, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ji Yon Kwon, M.D. prescribe under Medicare Part D?
In 2024, Ji Yon Kwon, M.D. had 7,456 Medicare Part D claims for 608 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.