Arnold J. Blustein, M.D.
Pediatrics Physician · San Leandro, CA
Arnold J. Blustein, M.D. is a pediatrics physician with a practice address in San Leandro, California, and NPI 1114989951, issued on Apr 5, 2006. Check the license (California G33522, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Arnold J. Blustein
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- G33522 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1235 Harrison St, San Leandro, CA 94577
- Phone
- (510) 352-2425
- Enumerated
- Apr 5, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (510) 352-6273
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Verify Arnold J. Blustein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G33522Check 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 pediatrics physician in 2024
12 Medicare Part D claims, against an average of 375 among the 5,609 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.
Arnold J. Blustein among 9,272 pediatrics physician records in California
Arnold J. Blustein, M.D. is one of 9,272 pediatrics physician records with a practice address in California. 31% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 56% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2026 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatrics Physician providers in California
There are 9,272 pediatrics physician records in California.
All 9,272 in California → Every provider in San Leandro → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Maria Beamer, M.D.San Leandro, CA 945771952350936
- Jennie Chen, M.D.San Leandro, CA 945771407891070
- Christina Chow, DOSan Leandro, CA 945771407954902
- Laura Denenberg, M.D.San Leandro, CA 945771962513093
- Diana Fan, M.D.San Leandro, CA 945771881777233
- Laura Grunbaum, M.D.San Leandro, CA 945771780624700
- Shalin Kapoor, M.D.San Leandro, CA 945771366520124
- Shirley Lau, M.D.San Leandro, CA 945771952482416
Common questions
What is Arnold J. Blustein, M.D.'s NPI number?
Arnold J. Blustein, M.D.'s National Provider Identifier (NPI) is 1114989951, issued on Apr 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Arnold J. Blustein, M.D. located?
The NPPES record lists a practice address at 1235 Harrison St, San Leandro, CA, 94577. Phone: (510) 352-2425. Providers update this record themselves, so call before visiting.
How can I verify Arnold J. Blustein, M.D.'s license?
NPPES lists California license number G33522, 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 Arnold J. Blustein, M.D. prescribe under Medicare Part D?
In 2024, Arnold J. Blustein, M.D. had 12 Medicare Part D claims; the average among pediatrics physician prescribers was 375. 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.