Seung Sue Cua, MD
Internal Medicine Physician · West Covina, CA
Seung Sue Cua, MD is an internal medicine physician with a practice address in West Covina, California, and NPI 1063513661, issued on Sep 26, 2006. Check the license (California A036509, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Seung Sue Cua
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A036509 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1433 W Merced Ave, West Covina, CA 91790
- Phone
- (626) 960-4939
- Enumerated
- Sep 26, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (626) 960-5520
- Medicare enrollment
- Enrolled (PECOS I20040607001569); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1433 W Merced Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sarah Gao, NPFamily Nurse Practitioner1770065294
- Imelda Jimenez, NPFamily Nurse Practitioner1477753721
Verify Seung Sue Cua in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A036509Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% more Medicare Part D claims than the average internal medicine physician in 2024
3,376 Medicare Part D claims for 266 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Amlodipine Besylate225 claims
- Losartan Potassium222 claims
- Atorvastatin Calcium207 claims
- Simvastatin179 claims
- Metformin Hcl168 claims
- Rosuvastatin Calcium100 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: $836.80
29 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. 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 2 group practices
- Cua And Gan Medical CorporationWest Covina, CA
- Cua, Gan And Bien Medical CorporationWest Covina, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Seung Sue Cua among 17,696 internal medicine physician records in California
Seung Sue Cua, MD 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
- Graduated1972 · median 2004 among the 11,065 with a school on file
- Record last updated2007 · 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).
23 internal medicine physician records list a practice address in West Covina
They are 23 of the 2,450 NPPES records with a practice address in West Covina, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in West Covina → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Amitabh Chauhan, M.D.West Covina, CA 917901619925948
- Johny Cu, MDWest Covina, CA 917901336223569
- Ziad Dabuni, M.D.West Covina, CA 917901851349187
- Lina Dela Cruz, MDWest Covina, CA 917901952489858
- Anil Gupta, MDWest Covina, CA 917901538182407
- Cesar Jimenez, MDWest Covina, CA 917901114099942
- Ruth Karunananthan, M.D.West Covina, CA 917901922057256
- Ping Lim, MDWest Covina, CA 917901851408009
Common questions
What is Seung Sue Cua, MD's NPI number?
Seung Sue Cua, MD's National Provider Identifier (NPI) is 1063513661, issued on Sep 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Seung Sue Cua, MD located?
The NPPES record lists a practice address at 1433 W Merced Ave, West Covina, CA, 91790. Phone: (626) 960-4939. Providers update this record themselves, so call before visiting.
How can I verify Seung Sue Cua, MD's license?
NPPES lists California license number A036509, 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 Seung Sue Cua, MD prescribe under Medicare Part D?
In 2024, Seung Sue Cua, MD had 3,376 Medicare Part D claims for 266 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.