Dr. Brad A. Marder, MD
- Medicare services, 2019
- 1,069
- Part D claims, 2020
- 48
- Publications
- 12
- Clinical trials
- 1
- Industry payments
- $107,939
- Practice address
- 4004 Beyer Blvd, San Diego, CA 92173
- Practice phone
- Call (619) 428-4463
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
San Ysidro Health Center
FQHC - Main Site · San Diego, California
Find Dr. Marder'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. Brad A. Marder is a nephrologist in San Ysidro, California
Dr. Marder practices at San Ysidro Health Center in San Diego, California.
Dr. Marder's NPI, 1487636775, was assigned on November 14, 2005. Dr. Marder holds Colorado license 41606.
- NPI
- 1487636775NPI Registry (opens in a new tab)
- NPI enumeration date
- November 14, 2005
- NPI status
- Active
- Practice phone
- (619) 428-4463
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Brad A. Marder practices at San Ysidro Health Center in San Diego, California
Dr. Marder's primary practice is San Ysidro Health Center, at 4004 Beyer Blvd, San Diego, CA 92173 in San Diego County. The practice phone is (619) 428-4463.
- San Ysidro Health Center4004 Beyer Blvd, San Diego, CA 92173 · San Diego CountyPhone(619) 428-4463
Source: Dmand AI Affiliation Data
Dr. Brad A. Marder is affiliated with 1 site of care and 1 medical group
Dr. Marder's primary practice is San Ysidro Health Center in San Diego, California. The medical group on file is San Ysidro Health. Dr. Marder's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Brad A. Marder's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marder practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Ysidro Health Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Brad A. Marder is one of 1,401 nephrologists in California
Nephrology is Dr. Marder's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Marder is licensed in Colorado.
Specialties and state licenses
- Nephrology, ColoradoPrimary
Nephrologists near Dr. Marder
Counts of nephrologists 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. Brad A. Marder billed Medicare for 1,069 services in 2019
CMS data shows 1,069 Medicare services from Dr. Marder across 8 procedure codes in 2019. Medicare paid $86,748 for them.
Dr. Marder's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Tests and treatments
- 2018: 3142019: 57683%
- Office and hospital visits
- 2018: 8702019: 49343%
Where Dr. Marder's Medicare services took place, 2019
- In an office55952%
- In a facility51048%
Dr. Marder compared with the California median for nephrologists, 2019
- Dr. Marder
- California median
- Medicare services
- 1,069vs 1,084Close to median
- Part D claims
- 48vs 95595% below
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Marder'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. Marder?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Marder and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Brad A. Marder's patients have a median age of 75
Across all payers, Dmand AI patient panel data puts Dr. Marder's median patient age at 75, with 0% women.
Dr. Marder's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. Brad A. Marder wrote 48 Medicare Part D claims in 2020
In 2020, Dr. Marder wrote 48 Medicare Part D claims. Every claim was for a generic drug. They cover 3 drugs, with $1,794 in total drug cost. In 2019, CMS named 570 claims across 26 drugs.
Dr. Marder's most prescribed drugs by claims, 2020
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 5702020: 4892%
Drugs named by CMS: 3 in 2020, 26 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Brad A. Marder has 12 publications on record
Dmand AI links 12 papers to Dr. Marder, published from 2010 to 2025. 2025 was the busiest year, with 3. The most frequent topics are Gout, Gout Suppressants and Kidney Transplantation. Dr. Marder has published most often in Am J Transplant. Dr. Marder's most frequent co-authors are Abdul Ali Abdellatif, MD, Brian David Lamoreaux, MD and John David Scandling, MD.
Dr. Marder's papers by year, 2010 to 2025
Topics Dr. Marder writes about most
- Gout
- Gout Suppressants
- Kidney Transplantation
- Uric Acid
- Polyethylene Glycols
- Calcineurin Inhibitors
- Glomerular Filtration Rate
- Graft Rejection
Dr. Marder's most frequent co-authors
- Abdul Ali Abdellatif, MD4 shared papers
- Brian David Lamoreaux, MD4 shared papers
- John David Scandling, MD3 shared papers
Recent publications by Dr. Marder
See who Dr. Marder researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Marder works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Brad A. Marder has worked on 1 clinical trial
Dmand AI links Dr. Marder to 1 clinical trial. Conditions studied include Nephritis, Hereditary and Polycystic Kidney, Autosomal Dominant.
Conditions in Dr. Marder's trials
- Nephritis, Hereditary
- Polycystic Kidney, Autosomal Dominant
Investigators on the most trials with Dr. Marder
- Amira Y. Al-Uzri, MD1 shared trial
- Mohamed G. Atta, MD1 shared trial
- Asha Lenora Bailey, DO1 shared trial
Recent clinical trials with Dr. Marder
An Extended Access Program for Bardoxolone Methyl in Patients With CKD (EAGLE) (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Brad A. Marder received $107,939 in industry payments from 2016 to 2020
CMS Open Payments shows 134 general payments to Dr. Marder from 9 drug and device companies from 2016 to 2020. Honoraria make up the largest share, 71% of the total. Horizon Pharma plc paid the most, $95,846. It also lists 3 research payments totaling $931 in 2018.
General payments to Dr. Marder by program year, 2016 to 2020
General payments to Dr. Marder by kind, 2016 to 2020
- Honoraria$76,88271%
- Travel and lodging$18,57317%
- Consulting fees$9,6679%
- Food and beverage$2,8173%
Companies that paid Dr. Marder the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Brad A. Marder'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 DataDmand AI Org Hierarchy 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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 |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Brad A. Marder
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. Brad A. Marder's NPI number?
Dr. Brad A. Marder's NPI number is 1487636775. It was assigned on November 14, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Brad A. Marder?
Dr. Brad A. Marder is a nephrologist in San Ysidro, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Brad A. Marder practice?
Dr. Marder practices at 4004 Beyer Blvd, San Diego, CA 92173. Dr. Marder's primary practice is San Ysidro Health Center in San Diego, California.
What is Dr. Brad A. Marder's office phone number?
The practice phone on file for Dr. Marder is (619) 428-4463.
What is Dr. Brad A. Marder's medical license number?
Dr. Marder holds Colorado license 41606.
What medical group is Dr. Brad A. Marder part of?
Dr. Marder is linked to San Ysidro Health.
Does Dr. Brad A. Marder accept Medicare?
Yes. CMS data shows Dr. Marder billed Medicare for 1,069 services in 2019.
What services does Dr. Brad A. Marder bill to Medicare?
In 2019, Dr. Marder's most billed Medicare services were dialysis (90970), hospital inpatient care (99232) and dialysis (90961).
What drugs does Dr. Brad A. Marder prescribe most?
In 2020 Medicare Part D data, Dr. Marder's most prescribed drugs by claims were Amlodipine Besylate, Calcium Acetate and Furosemide.
Has Dr. Brad A. Marder received payments from drug or device companies?
CMS Open Payments shows $107,939 in general payments to Dr. Marder from 9 companies from 2016 to 2020. The largest total came from Horizon Pharma plc.
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How long has Dr. Brad A. Marder been practicing?
Dr. Marder's NPI was assigned in 2005.
Does Dr. Brad A. Marder do research?
Dmand AI links 12 publications to Dr. Marder, published from 2010 to 2025. Dr. Marder has worked on 1 clinical trial.
Who does Dr. Brad A. Marder publish with?
Dr. Marder's most frequent co-authors are Abdul Ali Abdellatif, MD (4 shared papers), Brian David Lamoreaux, MD (4 shared papers) and John David Scandling, MD (3 shared papers).
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