Dr. Marcus D. Magallanes, MD
- Part D claims, 2023
- 12
- Industry payments
- $20
- Affiliated sites
- 3
- Medical group
- 1
- State license
- 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. Magallanes' 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. Marcus D. Magallanes is an internist in Bellflower, California
Dr. Magallanes practices at Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California.
Dr. Magallanes' NPI, 1265633143, was assigned on May 30, 2007. Dr. Magallanes graduated from University of California, San Diego School of Medicine in 1991. Dr. Magallanes holds California license G74749.
- NPI
- 1265633143NPI Registry (opens in a new tab)
- NPI enumeration date
- May 30, 2007
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Marcus D. Magallanes practices at Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California
Dr. Magallanes' 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. Marcus D. Magallanes is affiliated with 3 sites of care and 1 medical group
Dr. Magallanes' primary practice is Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Magallanes to 1 more breast imaging center and 1 group practice or clinic, each named with a free account. Dr. Magallanes' employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Marcus D. Magallanes' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Magallanes practices, 3 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 |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Marcus D. Magallanes is one of 16,751 internists in California
Internal medicine is Dr. Magallanes' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Magallanes is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Magallanes
Counts of internists 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. Marcus D. Magallanes' patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Magallanes' median patient age at 70, with 20% women.
Dr. Magallanes' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women20%
- Men80%
Source: Dmand AI Patient Panel Data
Dr. Marcus D. Magallanes wrote 12 Medicare Part D claims in 2023
In 2023, Dr. Magallanes wrote 12 Medicare Part D claims. They cover 1 drug, with $2,998 in total drug cost. In 2021, CMS named 11 claims across 1 drug.
Dr. Magallanes' most prescribed drugs by claims, 2023
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, 2021 to 2023
- 2021
- 2023
- Claims for drugs CMS names
- 2021: 112023: 129%
Drugs named by CMS: 1 in 2023, 1 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Marcus D. Magallanes received $20 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. Magallanes from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. Grifols Shared Services North America, Inc. paid the most, $20.
Companies that paid Dr. Magallanes the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Marcus D. Magallanes graduated from University of California, San Diego School of Medicine
Dr. Magallanes graduated from University of California, San Diego School of Medicine in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Marcus D. Magallanes'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 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Marcus D. Magallanes
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. Marcus D. Magallanes' NPI number?
Dr. Marcus D. Magallanes' NPI number is 1265633143. It was assigned on May 30, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Marcus D. Magallanes?
Dr. Marcus D. Magallanes is an internist in Bellflower, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Marcus D. Magallanes practice?
Dr. Magallanes practices at 9400 Rosecrans Avenue, Bellflower, CA 90706. Dr. Magallanes' primary practice is Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California. Dmand AI also links Dr. Magallanes to 1 breast imaging center and 1 group practice or clinic.
What is Dr. Marcus D. Magallanes' medical license number?
Dr. Magallanes holds California license G74749.
What medical group is Dr. Marcus D. Magallanes part of?
Dr. Magallanes is linked to Southern California Permanente Medical Group.
Where did Dr. Marcus D. Magallanes go to medical school?
Dr. Magallanes graduated from University of California, San Diego School of Medicine in 1991.
What drugs does Dr. Marcus D. Magallanes prescribe most?
In 2023 Medicare Part D data, Dr. Magallanes' most prescribed drugs by claims were Pradaxa.
Has Dr. Marcus D. Magallanes received payments from drug or device companies?
CMS Open Payments shows $20 in general payments to Dr. Magallanes from 1 company from 2022 to 2022. The largest total came from Grifols Shared Services North America, Inc.
How long has Dr. Marcus D. Magallanes been practicing?
Dr. Magallanes graduated from medical school in 1991, 35 years ago.
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