Michael A. Bronstein, MD
Critical Care Medicine (Internal Medicine) Physician · Los Angeles, CA
Michael A. Bronstein, MD is a critical care medicine (internal medicine) physician with a practice address in Los Angeles, California, and NPI 1932270907, issued on Nov 13, 2006. Check the license (California G68645, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael A. Bronstein
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- G68645 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4733 W Sunset Blvd, Los Angeles, CA 90027
- Phone
- (323) 783-4011
- Enumerated
- Nov 13, 2006
- Record last updated
- Nov 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20081119000854); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 1985
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 723 in California → Look up another NPI →
Also registered at 4733 W Sunset Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Nancy Adachi, PTPhysical Therapist1902004245
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Verify Michael A. Bronstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G68645Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024
345 Medicare Part D claims for 83 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 48% of claims.
Most prescribed
- Albuterol Sulfate Hfa79 claims
- Prednisone29 claims
- Spiriva Respimat27 claims
- Breyna22 claims
- Azithromycin20 claims
- Azelastine Hcl13 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: $141.84
1 payment: food and beverage; the largest payer was Novo Nordisk Inc. The 2,708 providers of this specialty with any payment received $2,958.68 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael A. Bronstein among 723 critical care medicine (internal medicine) physician records in California
Michael A. Bronstein, MD is one of 723 critical care medicine (internal medicine) physician records with a practice address in California. 87% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 60% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1985 · median 2005 among the 559 with a school on file
- Record last updated2021 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in California
There are 723 critical care medicine (internal medicine) physician records in California.
All 723 in California → Every provider in Los Angeles → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Allen Adams, M.D.Los Angeles, CA 900271700862794
- Annaelle Akcam, DOLos Angeles, CA 900271447945225
- Timothy Deakers, MD, PHDLos Angeles, CA 900271275626509
- Sylvia Del Castillo, MDLos Angeles, CA 900271700966314
- Mihran Garabedian, MDLos Angeles, CA 900271104993112
- Harleen Hayreh, MDLos Angeles, CA 900271073729539
- Arash Kharestan, MDLos Angeles, CA 900271982775896
- Christopher Newth, MDLos Angeles, CA 900271740383611
Common questions
What is Michael A. Bronstein, MD's NPI number?
Michael A. Bronstein, MD's National Provider Identifier (NPI) is 1932270907, issued on Nov 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael A. Bronstein, MD located?
The NPPES record lists a practice address at 4733 W Sunset Blvd, Los Angeles, CA, 90027. Phone: (323) 783-4011. Providers update this record themselves, so call before visiting.
How can I verify Michael A. Bronstein, MD's license?
NPPES lists California license number G68645, 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 A. Bronstein, MD prescribe under Medicare Part D?
In 2024, Michael A. Bronstein, MD had 345 Medicare Part D claims for 83 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.