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Dr. Matthew Sweeney, MD
NPI1659013563
- Part D claims, 2024
- 48
- Publications
- 3
- Hospital affiliations
- 1
- Industry payments
- $17
- State license
- 1
- Practice address
- 14445 Olive View Drive, Sylmar, CA 91342
- Practice phone
- Call (818) 364-1555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Sweeney'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. Matthew Sweeney is an internist in Sylmar, California
Dr. Sweeney practices at Olive View-UCLA Medical Center in Sylmar, California, part of County of Los Angeles.
Dr. Sweeney's NPI, 1659013563, was assigned on April 11, 2022. Dr. Sweeney graduated from Georgetown University School Of Medicine in 2022. Dr. Sweeney's California license number on file is A187797.
NPI and contact details
- NPI
- 1659013563NPI Registry (opens in a new tab)
- NPI enumeration date
- April 11, 2022
- NPI status
- Active
- Practice phone
- (818) 364-1555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Matthew Sweeney practices at Olive View-UCLA Medical Center in Sylmar, California
Dr. Sweeney's primary practice is Olive View-UCLA Medical Center, at 14445 Olive View Drive, Sylmar, CA 91342 in Los Angeles County. The practice phone is (818) 364-1555.
- Olive View-UCLA Medical Center14445 Olive View Drive, Sylmar, CA 91342 · Los Angeles CountyPhone(818) 364-1555
Source: Dmand AI Affiliation Data
Dr. Matthew Sweeney is affiliated with 1 site of care
Dr. Sweeney's primary practice is Olive View-UCLA Medical Center in Sylmar, California, part of County of Los Angeles. Dr. Sweeney's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Matthew Sweeney's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sweeney practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Olive View-UCLA Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Matthew Sweeney is one of 16,751 internists in California
Internal medicine is Dr. Sweeney's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Sweeney has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Sweeney
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
16,751internists in California127internists in Sylmar121internists at Olive View-UCLA Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Matthew Sweeney's patients have a median age of 58
Across all payers, Dmand AI patient panel data puts Dr. Sweeney's median patient age at 58, with 30% women.
Dr. Sweeney's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women30%
- Men70%
Source: Dmand AI Patient Panel Data
Dr. Matthew Sweeney wrote 48 Medicare Part D claims in 2024
In 2024, Dr. Sweeney wrote 48 Medicare Part D claims for 16 patients. 73% of them were for generic drugs.
Part D claims, 202448
Part D patients16
Dr. Sweeney's Part D claims by kind of drug, 2024
- Generic35 claims73%
- Brand-name13 claims27%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Matthew Sweeney has 3 publications on record
Dmand AI links 3 papers to Dr. Sweeney, published from 2021 to 2022. The most frequent topics are Hospitals, High-Volume. Dr. Sweeney's most frequent co-authors are Mohammed Bayasi, MD, Raymond Kyuhan Chang, MD and Daniel Fairbanks Childers.
Papers3
Years published2021 to 2022
Topics Dr. Sweeney writes about most
- Hospitals, High-Volume
Dr. Sweeney's most frequent co-authors
- Mohammed Bayasi, MD2 shared papers
- Raymond Kyuhan Chang, MD1 shared paper
- Daniel Fairbanks Childers1 shared paper
Recent publications by Dr. Sweeney
AdenocarcinomaColectomyColonic Neoplasms
See who Dr. Sweeney researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sweeney works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Matthew Sweeney received $17 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Sweeney from 1 drug or device company in 2025. Education make up the largest share, 100% of the total. Insmed, Inc. paid the most, $17.
Companies that paid Dr. Sweeney the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Matthew Sweeney graduated from Georgetown University School Of Medicine
Dr. Sweeney graduated from Georgetown University School Of Medicine in 2022.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Matthew Sweeney'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (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 |
| 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. Matthew Sweeney
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. Matthew Sweeney's NPI number?
Dr. Matthew Sweeney's NPI number is 1659013563. It was assigned on April 11, 2022, and it is active in the NPI Registry.
What kind of doctor is Dr. Matthew Sweeney?
Dr. Matthew Sweeney is an internist in Sylmar, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Matthew Sweeney practice?
Dr. Sweeney practices at 14445 Olive View Drive, Sylmar, CA 91342. Dr. Sweeney's primary practice is Olive View-UCLA Medical Center in Sylmar, California, part of County of Los Angeles.
What is Dr. Matthew Sweeney's office phone number?
The practice phone on file for Dr. Sweeney is (818) 364-1555.
What is Dr. Matthew Sweeney's medical license number?
Dr. Sweeney's California license number on file is A187797.
Which hospitals is Dr. Matthew Sweeney affiliated with?
Dr. Sweeney practices at Olive View-UCLA Medical Center in Sylmar, California.
Where did Dr. Matthew Sweeney go to medical school?
Dr. Sweeney graduated from Georgetown University School Of Medicine in 2022.
Has Dr. Matthew Sweeney received payments from drug or device companies?
CMS Open Payments shows $17 in general payments to Dr. Sweeney from 1 company from 2025 to 2025. The largest total came from Insmed, Inc.
How long has Dr. Matthew Sweeney been practicing?
Dr. Sweeney graduated from medical school in 2022, 4 years ago.
Does Dr. Matthew Sweeney do research?
Dmand AI links 3 publications to Dr. Sweeney, published from 2021 to 2022.
Who does Dr. Matthew Sweeney publish with?
Dr. Sweeney's most frequent co-authors are Mohammed Bayasi, MD (2 shared papers), Raymond Kyuhan Chang, MD (1 shared paper) and Daniel Fairbanks Childers (1 shared paper).
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