Donald Mang-Sum Lai, MD
Cardiovascular Disease Physician · Pleasanton, CA
Donald Mang-Sum Lai, MD is a cardiovascular disease physician with a practice address in Pleasanton, California, and NPI 1093797557, issued on Nov 18, 2005. Check the license (California G54833, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Donald Mang-Sum Lai
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- G54833 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5565 W Las Positas Blvd Ste 150, Pleasanton, CA 94588
- Phone
- (925) 534-6880
- Enumerated
- Nov 18, 2005
- Record last updated
- Apr 22, 2024
- Medicaid ID
- 00G548330 CA
- Medicare enrollment
- Enrolled (PECOS I20080530000571); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 1982
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 5565 W Las Positas Blvd Ste 150
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cheryl Ann Dony, PA-CPhysician Assistant1730955642
- Morgan Lin, MDCardiovascular Disease Physician1235227109
- Ramford Ng, MDCardiovascular Disease Physician1134257702
- Lilian Pham, PA-CPhysician Assistant1922783661
- Daniel Rieders, M.D.Cardiovascular Disease Physician1114927449
- David Tehrani, MDCardiovascular Disease Physician1851771158
Verify Donald Mang-Sum Lai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G54833Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% more Medicare Part D claims than the average cardiovascular disease physician in 2024
4,474 Medicare Part D claims for 549 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Atorvastatin Calcium575 claims
- Eliquis423 claims
- Metoprolol Succinate399 claims
- Rosuvastatin Calcium223 claims
- Amlodipine Besylate210 claims
- Furosemide209 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: $342.47
10 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 16,686 providers of this specialty with any payment received $3,819.56 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.
2 hospitals and group practices
- Stanford Health CareLivermore, CA · Acute Care Hospitals5 of 5 stars
- University Healthcare AlliancePleasanton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California.
Other cardiovascular disease physician records in California
- Abdul Abbasi, MDLong Beach, CA1710071717
- Siddique Abbasi, MDThousand Oaks, CA1528076718
- Lillian Abdelmalek, MDSacramento, CA1881343796
- Robin Abdelmalik, M.D. FACCTemecula, CA1275656662
- Roberto Abdelnur, MDEl Centro, CA1982648606
- Sohail Abdi-Moradi, M.D.Moorpark, CA1376862938
- Nadia Abelhad, M.D.Chula Vista, CA1619400801
- Georges Abou Rjaili, MDRiverside, CA1073896544
- Jamil Aboulhosn, MDLos Angeles, CA1356382717
- Maria Abraham, M.D.San Francisco, CA1669436960
Common questions
What is Donald Mang-Sum Lai, MD's NPI number?
Donald Mang-Sum Lai, MD's National Provider Identifier (NPI) is 1093797557, issued on Nov 18, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Donald Mang-Sum Lai, MD located?
The NPPES record lists a practice address at 5565 W Las Positas Blvd Ste 150, Pleasanton, CA, 94588. Phone: (925) 534-6880. Providers update this record themselves, so call before visiting.
How can I verify Donald Mang-Sum Lai, MD's license?
NPPES lists California license number G54833, 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 Donald Mang-Sum Lai, MD prescribe under Medicare Part D?
In 2024, Donald Mang-Sum Lai, MD had 4,474 Medicare Part D claims for 549 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.