Michael Raosen Ma, M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Palo Alto, CA
Michael Raosen Ma, M.D. is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Palo Alto, California, and NPI 1134445158, issued on Apr 15, 2010. Check the license (California A118114, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Raosen Ma
- Credential
- M.D.
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License number
- A118114 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Palo Alto, CA 94304
- Phone
- (650) 723-4000
- Enumerated
- Apr 15, 2010
- Record last updated
- Apr 27, 2024
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 634 in California → Look up another NPI →
Also registered at 300 Pasteur Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Amy Alexander, M.D.Psychiatry Physician1740435486
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Verify Michael Raosen Ma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A118114Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $141.55
1 payment: food and beverage; the largest payer was Steris Corporation. The 4,047 providers of this specialty with any payment received $7,828.84 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.
Michael Raosen Ma among 634 thoracic surgery (cardiothoracic vascular surgery) physician records in California
Michael Raosen Ma, M.D. is one of 634 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 72% of them.
- NPI issued2010 · 72% of these records are older, 25% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2024 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208G00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in California
There are 634 thoracic surgery (cardiothoracic vascular surgery) physician records in California.
All 634 in California → Every provider in Palo Alto → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- Thomas Burdon, M.D.Palo Alto, CA 943041215980347
- James Fann, M.D.Palo Alto, CA 943041750313268
- Michael Fischbein, M.D., PHDPalo Alto, CA 943041700811411
- Vincent Gaudiani, MDPalo Alto, CA 943041851317341
- Frank Hanley, MDPalo Alto, CA 943041083632624
- William Hiesinger, MDPalo Alto, CA 943041093913667
- John Lamberti, M.D.Palo Alto, CA 943041518038371
- Anson Lee, M.D.Palo Alto, CA 943041336237247
Common questions
What is Michael Raosen Ma, M.D.'s NPI number?
Michael Raosen Ma, M.D.'s National Provider Identifier (NPI) is 1134445158, issued on Apr 15, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Michael Raosen Ma, M.D. located?
The NPPES record lists a practice address at 300 Pasteur Dr, Palo Alto, CA, 94304. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.
How can I verify Michael Raosen Ma, M.D.'s license?
NPPES lists California license number A118114, 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.
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.