Vasc Endovascular Surg
Dr. Michael Benjamin Brewer, MD
- Medicare services, 2019
- 12
- Medicare patients, 2024
- 22
- Part D claims, 2024
- 223
- Publications
- 14
- Hospital affiliations
- 1
- Practice address
- 9400 Rosecrans Avenue, Bellflower, CA 90706
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD
Acute Care Hospital outpatient department · Bellflower, California
Find Dr. Brewer's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Michael Benjamin Brewer is a vascular surgeon in Bellflower, California
Dr. Brewer practices at Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California.
Dr. Brewer's NPI, 1023133972, was assigned on March 20, 2007. Dr. Brewer graduated from UC Irvine School of Medicine in 2006. Dr. Brewer's California license number on file is A119134.
- NPI
- 1023133972NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476774852
- NPI enumeration date
- March 20, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Benjamin Brewer practices at Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California
Dr. Brewer's primary practice is Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD, at 9400 Rosecrans Avenue, Bellflower, CA 90706.
- Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD9400 Rosecrans Avenue, Bellflower, CA 90706
Source: Dmand AI Affiliation Data
Dr. Michael Benjamin Brewer is affiliated with 4 sites of care and 1 medical group
Dr. Brewer's primary practice is Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California. Dr. Brewer is also affiliated with Downey Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Brewer to 1 more breast imaging center and 1 group practice or clinic, each named with a free account. Dr. Brewer's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Michael Benjamin Brewer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Brewer practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael Benjamin Brewer is one of 532 vascular surgeons in California
Vascular surgery is Dr. Brewer's primary specialty in the NPI Registry, under taxonomy code 2086S0129X. Dr. Brewer is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Brewer's licenses on file in 2 states: California and Maryland.
Specialties and state licenses
- Vascular surgery, CaliforniaPrimary
- Maryland license
Vascular surgeons near Dr. Brewer
Counts of vascular surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Michael Benjamin Brewer billed Medicare for 12 services in 2019
CMS data shows 12 Medicare services from Dr. Brewer across 1 procedure code in 2019, all of them office visits, for 22 Medicare patients. Medicare paid $539 for them. Every service was in an office.
Dr. Brewer compared with the California median for vascular surgeons, 2019
- Dr. Brewer
- California median
- Medicare services
- 12vs 60998% below
- Medicare patients
- 22vs 27292% below
- Part D claims
- 191vs 553.5 times
Medians across 499 vascular surgeons in California with Dmand AI profiles that report each measure.
Dr. Brewer's most billed Medicare procedure codes, 2019
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Brewer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Brewer and other vascular surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael Benjamin Brewer treated 22 Medicare patients in 2024, average age 63
CMS counts 22 Medicare patients who saw Dr. Brewer in 2024. 75% of them have chronic kidney disease, and 75% have diabetes. Their average risk score is 5.06, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Brewer's median patient age at 69, with 61% women.
Chronic conditions among Dr. Brewer's Medicare patients, 2024
- Chronic kidney disease75%
- Diabetes75%
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Brewer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women61%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael Benjamin Brewer wrote 223 Medicare Part D claims in 2024
In 2024, Dr. Brewer wrote 223 Medicare Part D claims for 92 patients. 96% of them were for generic drugs. CMS names the drug for 191 of them, across 5 drugs with 11 or more claims each, at $5,863 in total drug cost. In 2023, CMS named 168 claims across 3 drugs.
Dr. Brewer's Part D claims by kind of drug, 2024
- Generic215 claims96%
- Brand-name and other8 claims4%
Dr. Brewer's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Brewer's Part D claims, 2024
- Opioids25%56 of 223 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1682024: 19114%
Drugs named by CMS: 5 in 2024, 3 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Michael Benjamin Brewer takes part in Medicare
Dr. Brewer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Michael Benjamin Brewer has 14 publications on record
Dmand AI links 14 papers to Dr. Brewer, published from 2009 to 2024. 2024 was the busiest year, with 3. The most frequent topics are Computed Tomography Angiography, Embolization, Therapeutic and Endarterectomy, Carotid. Dr. Brewer has published most often in Vasc Endovascular Surg. Dr. Brewer's most frequent co-authors are David L-C Lau, MD, Devinder Singh, MD and Matthew K. Folstein, MD.
Dr. Brewer's papers by year, 2009 to 2024
Topics Dr. Brewer writes about most
- Computed Tomography Angiography
- Embolization, Therapeutic
- Endarterectomy, Carotid
- Endovascular Procedures
- Lymphedema
- Obesity, Morbid
- Tinnitus
Dr. Brewer's most frequent co-authors
- David L-C Lau, MD3 shared papers
- Devinder Singh, MD2 shared papers
- Matthew K. Folstein, MD1 shared paper
Recent publications by Dr. Brewer
Vasc Endovascular Surg
Vasc Endovascular Surg
Vet Microbiol
See who Dr. Brewer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Brewer works with, so you can find a warm path to the right vascular surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Michael Benjamin Brewer received $5,561 in industry payments from 2017 to 2025
CMS Open Payments shows 101 general payments to Dr. Brewer from 12 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 76% of the total. Medtronic, Inc. paid the most, $1,872.
General payments to Dr. Brewer by program year, 2017 to 2025
General payments to Dr. Brewer by kind, 2017 to 2025
- Food and beverage$4,20976%
- Travel and lodging$1,35224%
Companies that paid Dr. Brewer the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael Benjamin Brewer graduated from UC Irvine School of Medicine
Dr. Brewer graduated from UC Irvine School of Medicine in 2006.
- Medical school
- Board certified in surgery
- Board certified in vascular surgery
Source: Dmand AI Professional Profile Data
Dr. Michael Benjamin Brewer accepts plans from 1 insurance carrier
Dr. Brewer is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for Dr. Michael Benjamin Brewer's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Michael Benjamin Brewer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Michael Benjamin Brewer's NPI number?
Dr. Michael Benjamin Brewer's NPI number is 1023133972. It was assigned on March 20, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Benjamin Brewer?
Dr. Michael Benjamin Brewer is a vascular surgeon in Bellflower, California. The primary specialty in the NPI Registry is Vascular Surgery Physician (taxonomy code 2086S0129X).
Where does Dr. Michael Benjamin Brewer practice?
Dr. Brewer practices at 9400 Rosecrans Avenue, Bellflower, CA 90706. Dr. Brewer's primary practice is Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California. Dmand AI also links Dr. Brewer to 1 breast imaging center and 1 group practice or clinic.
What is Dr. Michael Benjamin Brewer's medical license number?
Dr. Brewer's California license number on file is A119134, one of the licenses on file in 2 states.
Which states has Dr. Michael Benjamin Brewer been licensed in?
Dmand AI has state licenses on file for Dr. Brewer in California (2011 to 2025) and Maryland (2008 to 2010).
Which hospitals is Dr. Michael Benjamin Brewer affiliated with?
Dr. Brewer is affiliated with Downey Medical Center.
What medical group is Dr. Michael Benjamin Brewer part of?
Dr. Brewer is linked to Southern California Permanente Medical Group.
Does Dr. Michael Benjamin Brewer accept Medicare?
Yes. CMS data shows Dr. Brewer billed Medicare for 12 services in 2019, and Dr. Brewer accepts Medicare assignment.
How many Medicare patients does Dr. Michael Benjamin Brewer see?
CMS counts 22 Medicare patients who saw Dr. Brewer in 2024, with an average age of 63.
Is Dr. Michael Benjamin Brewer board certified?
Yes. Dr. Brewer is board certified in surgery by the American Board of Surgery.
Show 8 more questionsShow fewer questions
What services does Dr. Michael Benjamin Brewer bill to Medicare?
In 2019, Dr. Brewer's most billed Medicare services were office visit, established patient (99213).
Where did Dr. Michael Benjamin Brewer go to medical school?
Dr. Brewer graduated from UC Irvine School of Medicine in 2006.
What drugs does Dr. Michael Benjamin Brewer prescribe most?
In 2024 Medicare Part D data, Dr. Brewer's most prescribed drugs by claims were Clopidogrel, Hydrocodone-Acetaminophen and Pentoxifylline.
Has Dr. Michael Benjamin Brewer received payments from drug or device companies?
CMS Open Payments shows $5,561 in general payments to Dr. Brewer from 12 companies from 2017 to 2025. The largest total came from Medtronic, Inc.
How long has Dr. Michael Benjamin Brewer been practicing?
Dr. Brewer graduated from medical school in 2006, 20 years ago.
Does Dr. Michael Benjamin Brewer do research?
Dmand AI links 14 publications to Dr. Brewer, published from 2009 to 2024.
Who does Dr. Michael Benjamin Brewer publish with?
Dr. Brewer's most frequent co-authors are David L-C Lau, MD (3 shared papers), Devinder Singh, MD (2 shared papers) and Matthew K. Folstein, MD (1 shared paper).
What insurance does Dr. Michael Benjamin Brewer accept?
Dr. Brewer is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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