Michael Sean Marcin, M.D., M.S.C.R.
Neurodevelopmental Disabilities Physician · Mountain View, CA
Michael Sean Marcin, M.D., M.S.C.R. is a neurodevelopmental disabilities physician with a practice address in Mountain View, California, and NPI 1528100021, issued on Feb 12, 2007. Check the license (California C 55101, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Sean Marcin
- Credential
- M.D., M.S.C.R.
- Primary taxonomy
- Neurodevelopmental Disabilities Physician 2084P0005X
- License numbers
- C 55101 CA
049407 GA
314609-01 NY
MD26579 OR
MD.61213218 WA
Self-reported in NPPES; status is on the state search - Practice location
- 298 San Antonio RD Ste 100, Mountain View, CA 94040
- Phone
- (650) 446-4900
- Enumerated
- Feb 12, 2007
- Record last updated
- Apr 16, 2024
- Entity
- Type 1 · individual
8 nearest neurodevelopmental disabilities physician records → All 9 in California → Look up another NPI →
Also registered at 298 San Antonio RD Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samir Abuhamad, MD, MSPsychiatry Physician1710514179
- Lynde Alvarez, LCSWClinical Social Worker1578116000
- Philip Bonanno, MDPsychiatry Physician1760942437
- Kathleen ChouRegistered Nurse1811827553
- Antonia LetoMarriage & Family Therapist1366066003
- Dinaz VilmsClinical Social Worker1144658774
Verify Michael Sean Marcin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C 55101Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average neurodevelopmental disabilities physician in 2024
18 Medicare Part D claims, against an average of 948 among the 22 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Neurodevelopmental Disabilities Physician providers in California
There are 9 neurodevelopmental disabilities physician records in California.
All 9 in California → Every provider in Mountain View → Neurodevelopmental Disabilities Physician nationwide →
The 8 neurodevelopmental disabilities physician records with the nearest ZIP codes
- Lynne Mielke, M.D.Pleasanton, CA 945881700985413
- Stephen Mott, M.D.Santa Ana, CA 927051295723450
- Aram KimOrange, CA 926201467814459
- Richard Chadwin, MDSonoma, CA 954761811949399
- Anuja Jindal, MD, MPHSan Diego, CA 921231194046581
- Joshua Feder, M.D.Solana Beach, CA 920751811155161
- Sabira Saifuddin, MDWestlake Village, CA 913611932233996
- Victoria Dunckley, M.D.Seal Beach, CA 907401093807000
Common questions
What is Michael Sean Marcin, M.D., M.S.C.R.'s NPI number?
Michael Sean Marcin, M.D., M.S.C.R.'s National Provider Identifier (NPI) is 1528100021, issued on Feb 12, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Michael Sean Marcin, M.D., M.S.C.R. located?
The NPPES record lists a practice address at 298 San Antonio RD Ste 100, Mountain View, CA, 94040. Phone: (650) 446-4900. Providers update this record themselves, so call before visiting.
How can I verify Michael Sean Marcin, M.D., M.S.C.R.'s license?
NPPES lists California license number C 55101, 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 Michael Sean Marcin, M.D., M.S.C.R. prescribe under Medicare Part D?
In 2024, Michael Sean Marcin, M.D., M.S.C.R. had 18 Medicare Part D claims; the average among neurodevelopmental disabilities physician prescribers was 948. 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.