Brandon Kobayashi, MD
Hospitalist Physician · San Jose, CA
Brandon Kobayashi, MD is a hospitalist physician with a practice address in San Jose, California, and NPI 1679078257, issued on Mar 27, 2018. Check the license (California A164599, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Brandon Kobayashi
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A164599 CA
Self-reported in NPPES; status is on the state search - Practice location
- 751 S Bascom Ave, San Jose, CA 95128
- Phone
- (408) 885-5000
- Enumerated
- Mar 27, 2018
- Record last updated
- Jun 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20250722001729); accepts Medicare assignment
- Medical or professional school
- University Of Hawaii John A. Burns School Of Medicine, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 751 S Bascom Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Pallavi AcharyaClinical Social Worker1154807873
Verify Brandon Kobayashi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A164599Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average hospitalist physician in 2024
172 Medicare Part D claims for 33 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 23 claims were for opioids.
Most prescribed
- Acyclovir25 claims
- Sulfamethoxazole-Trimethoprim12 claims
- Morphine Sulfate Er11 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: $733.08
16 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 7,324 providers of this specialty with any payment received $494.84 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.
One hospital affiliation
- The Queens Medical CenterHonolulu, HI · Acute Care Hospitals3 of 5 stars
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.
Brandon Kobayashi among 3,099 hospitalist physician records in California
Brandon Kobayashi, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 77% of them.
- NPI issued2018 · 77% of these records are older, 19% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2018 · median 2010 among the 2,505 with a school on file
- Record last updated2021 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in San Jose → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Sushil Adhikari, M.D.San Jose, CA 951281295907301
- Randi Kestler, M.D.San Jose, CA 951281780909242
- Neelima Komatineni, M.D.San Jose, CA 951281225064108
- Hong Diem Le, DOSan Jose, CA 951281225533839
- Sushma Pai, M.D.San Jose, CA 951281619188596
- Hoang Pham, MDSan Jose, CA 951281346551819
- Megan Stevens, MDSan Jose, CA 951281558821868
- James Guetzkow, M.D., C.D.E.San Jose, CA 951251801906995
Common questions
What is Brandon Kobayashi, MD's NPI number?
Brandon Kobayashi, MD's National Provider Identifier (NPI) is 1679078257, issued on Mar 27, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Brandon Kobayashi, MD located?
The NPPES record lists a practice address at 751 S Bascom Ave, San Jose, CA, 95128. Phone: (408) 885-5000. Providers update this record themselves, so call before visiting.
How can I verify Brandon Kobayashi, MD's license?
NPPES lists California license number A164599, 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 Brandon Kobayashi, MD prescribe under Medicare Part D?
In 2024, Brandon Kobayashi, MD had 172 Medicare Part D claims for 33 beneficiaries; the average among hospitalist physician prescribers was 521. 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.