Stanley Ng, MD
Internal Medicine Physician · Pleasanton, CA
Stanley Ng, MD is an internal medicine physician with a practice address in Pleasanton, California, and NPI 1942200548, issued on Jul 26, 2005. Check the license (California A76047, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stanley Ng
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A76047 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5575 W Las Positas Blvd, Pleasanton, CA 94588
- Phone
- (925) 463-0590
- Enumerated
- Jul 26, 2005
- Record last updated
- Jan 18, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (925) 847-9532
- Medicaid ID
- 00A760470 CA
- Medicare enrollment
- Enrolled (PECOS I20090109000123); 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 5575 W Las Positas Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Michael Gagnon, MDOphthalmology Physician1164525598
Verify Stanley Ng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A76047Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
108 Medicare Part D claims for 80 beneficiaries, 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.
Bills Medicare through one group practice
- University Healthcare AllianceSan Ramon, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stanley Ng among 17,696 internal medicine physician records in California
Stanley Ng, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1998 · median 2004 among the 11,065 with a school on file
- Record last updated2012 · 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).
57 internal medicine physician records list a practice address in Pleasanton
They are 57 of the 2,213 NPPES records with a practice address in Pleasanton, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Pleasanton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Nikhil Apte, MDPleasanton, CA 945881972552206
- Tasneem Bader-Omarali, M.D.Pleasanton, CA 945881578658795
- Katherine Burck, M.D.Pleasanton, CA 945881487768719
- David Chee, MDPleasanton, CA 945881306846373
- Anthony Koh, MDPleasanton, CA 945881730166158
- Calvin Lei, MDPleasanton, CA 945881265432967
- Fernandina Lo, MDPleasanton, CA 945881427055706
- Gule-Rana Masood, MDPleasanton, CA 945881508838020
Common questions
What is Stanley Ng, MD's NPI number?
Stanley Ng, MD's National Provider Identifier (NPI) is 1942200548, issued on Jul 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Stanley Ng, MD located?
The NPPES record lists a practice address at 5575 W Las Positas Blvd, Pleasanton, CA, 94588. Phone: (925) 463-0590. Providers update this record themselves, so call before visiting.
How can I verify Stanley Ng, MD's license?
NPPES lists California license number A76047, 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 Stanley Ng, MD prescribe under Medicare Part D?
In 2024, Stanley Ng, MD had 108 Medicare Part D claims for 80 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.