Janet Seungmin Lee, D.O.
Internal Medicine Physician · Newport Beach, CA
Janet Seungmin Lee, D.O. is an internal medicine physician with a practice address in Newport Beach, California, and NPI 1679004246, issued on Mar 24, 2017. Check the license (California 20A16989, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Janet Seungmin Lee
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A16989 CA
Self-reported in NPPES; status is on the state search - Practice location
- 280 Newport Center Dr Ste 110, Newport Beach, CA 92660
- Phone
- (949) 835-3054
- Enumerated
- Mar 24, 2017
- Record last updated
- Jun 18, 2025
- Fax
- (949) 276-3221
- Medicare enrollment
- Enrolled (PECOS I20240208001819); accepts Medicare assignment
- 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 280 Newport Center Dr Ste 110
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nita Chen, MDNeurology Physician1881126258
Verify Janet Seungmin Lee in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A16989Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,803 Medicare Part D claims for 1,405 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 54 claims were for opioids.
Most prescribed
- Atorvastatin Calcium206 claims
- Amlodipine Besylate138 claims
- Levothyroxine Sodium118 claims
- Lisinopril94 claims
- Losartan Potassium94 claims
- Albuterol Sulfate Hfa91 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: $218.24
8 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific 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.
Bills Medicare through one group practice
- Andrew Nguyen DO A Professional Medical CorporationNewport Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Janet Seungmin Lee among 17,696 internal medicine physician records in California
Janet Seungmin Lee, D.O. 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 2017, is newer than 81% of them.
- NPI issued2017 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2017 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 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).
94 internal medicine physician records list a practice address in Newport Beach
They are 94 of the 4,414 NPPES records with a practice address in Newport Beach, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Newport Beach → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Russell Alterman, D.O.Newport Beach, CA 926601487609939
- Sharon Bae, M.D.Newport Beach, CA 926601346211372
- Susan Cederstrom, M.D.Newport Beach, CA 926601578529012
- Zoltan Csuka, MDNewport Beach, CA 926601679539951
- William Fukuda, M.D.Newport Beach, CA 926601396701850
- Gilbert Goodman, M.D.Newport Beach, CA 926601851357867
- Richard Harano, M.DNewport Beach, CA 926601235185695
- Bradley Kays, M.D.Newport Beach, CA 926601417914334
Common questions
What is Janet Seungmin Lee, D.O.'s NPI number?
Janet Seungmin Lee, D.O.'s National Provider Identifier (NPI) is 1679004246, issued on Mar 24, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Janet Seungmin Lee, D.O. located?
The NPPES record lists a practice address at 280 Newport Center Dr Ste 110, Newport Beach, CA, 92660. Phone: (949) 835-3054. Providers update this record themselves, so call before visiting.
How can I verify Janet Seungmin Lee, D.O.'s license?
NPPES lists California license number 20A16989, 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 Janet Seungmin Lee, D.O. prescribe under Medicare Part D?
In 2024, Janet Seungmin Lee, D.O. had 2,803 Medicare Part D claims for 1,405 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.