Sony Thanh Vo
Internal Medicine Physician · San Diego, CA
Sony Thanh Vo is an internal medicine physician with a practice address in San Diego, California, and NPI 1427003938, issued on May 23, 2006. Check the license (California A49788, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sony Thanh Vo
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A49788 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4551 EL Cajon Blvd, San Diego, CA 92115
- Phone
- (619) 280-7185
- Enumerated
- May 23, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (619) 280-0994
- Medicaid ID
- A497881 CA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 4551 EL Cajon Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nathan Hua, MDInternal Medicine Physician1619471232
- Tue Nguyen, MDInternal Medicine Physician1548226178
Verify Sony Thanh Vo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A49788Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
18 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Sony Thanh Vo among 17,696 internal medicine physician records in California
Sony Thanh Vo 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 fileNo · 63% of these records are
- Record last updated2026 · 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).
961 internal medicine physician records list a practice address in San Diego
They are 961 of the 52,937 NPPES records with a practice address in San Diego, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Diego → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sally Alassil, MDSan Diego, CA 921151982044483
- Can Bui, MDSan Diego, CA 921151285717397
- Regina Connell, M.D.San Diego, CA 921151639380249
- John Howard, MDSan Diego, CA 921151063933604
- Nathan Hua, MDSan Diego, CA 921151619471232
- Alison Lewis, M.D.San Diego, CA 921151770674202
- Tue Nguyen, MDSan Diego, CA 921151548226178
- Hiep Nguyen, M.D.San Diego, CA 921151184716151
Common questions
What is Sony Thanh Vo's NPI number?
Sony Thanh Vo's National Provider Identifier (NPI) is 1427003938, issued on May 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sony Thanh Vo located?
The NPPES record lists a practice address at 4551 EL Cajon Blvd, San Diego, CA, 92115. Phone: (619) 280-7185. Providers update this record themselves, so call before visiting.
How can I verify Sony Thanh Vo's license?
NPPES lists California license number A49788, 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 Sony Thanh Vo prescribe under Medicare Part D?
In 2024, Sony Thanh Vo had 18 Medicare Part D claims; 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.