Melissa R. Sung, MD
Internal Medicine Physician · Dublin, CA
Melissa R. Sung, MD is an internal medicine physician with a practice address in Dublin, California, and NPI 1467666883, issued on May 9, 2007. Check the license (California C55881, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Melissa R. Sung
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- C55881 CA
247000 NY
Self-reported in NPPES; status is on the state search - Practice location
- 4050 Dublin Blvd, Dublin, CA 94568
- Phone
- (925) 875-6100
- Enumerated
- May 9, 2007
- Record last updated
- May 28, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20131024000840); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2005
- 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 4050 Dublin Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Melissa R. Sung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C55881Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,321 Medicare Part D claims for 156 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium192 claims
- Losartan Potassium116 claims
- Amlodipine Besylate81 claims
- Levothyroxine Sodium40 claims
- Gabapentin37 claims
- Metoprolol Succinate32 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.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationPalo Alto, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Melissa R. Sung among 17,696 internal medicine physician records in California
Melissa R. Sung, 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 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2005 · median 2004 among the 11,065 with a school on file
- Record last updated2020 · 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).
20 internal medicine physician records list a practice address in Dublin
They are 20 of the 2,148 NPPES records with a practice address in Dublin, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Dublin → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kim Benson, M.D.Dublin, CA 945681801948633
- Bryan Chin, DODublin, CA 945681972756237
- Tulika Ghosh, MDDublin, CA 945681902102726
- Kanwalpreet Hundal, MDDublin, CA 945681386828242
- Andal Kadambi, MDDublin, CA 945681821150863
- Damayanthi Kalisetti, MDDublin, CA 945681205813532
- Jacqueline Keedy, M.D.Dublin, CA 945681760612931
- Natasha Phan, MDDublin, CA 945681669406005
Common questions
What is Melissa R. Sung, MD's NPI number?
Melissa R. Sung, MD's National Provider Identifier (NPI) is 1467666883, issued on May 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Melissa R. Sung, MD located?
The NPPES record lists a practice address at 4050 Dublin Blvd, Dublin, CA, 94568. Phone: (925) 875-6100. Providers update this record themselves, so call before visiting.
How can I verify Melissa R. Sung, MD's license?
NPPES lists California license number C55881, 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 Melissa R. Sung, MD prescribe under Medicare Part D?
In 2024, Melissa R. Sung, MD had 1,321 Medicare Part D claims for 156 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.