Dr. Glenn Eric Mathisen, MD

  • Sylmar, CA
  • Infectious disease specialist
NPI1376564948
Part D claims, 2024
89
Publications
4
Clinical trials
1
Hospital affiliations
1
Industry payments
$194
Practice address
14445 Olive View Drive, Sylmar, CA 91342
Practice phone
Call (818) 364-1555
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Olive View-UCLA Medical Center

Hospital · Sylmar, California

See all 1 affiliations

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Dr. Glenn Eric Mathisen is an infectious disease specialist in Sylmar, California

Dr. Mathisen practices at Olive View-UCLA Medical Center in Sylmar, California, part of County of Los Angeles.

Dr. Mathisen's NPI, 1376564948, was assigned on July 21, 2006. Dr. Mathisen graduated from Albany Medical College in 1977. Dr. Mathisen holds California license G44551.

NPI and contact details
NPI enumeration date
July 21, 2006
NPI status
Active
Practice phone
(818) 364-1555
Professional email
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Personal email
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Mobile number
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Sex
Male
Medical school graduation
1977

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Dr. Glenn Eric Mathisen practices at Olive View-UCLA Medical Center in Sylmar, California

Dr. Mathisen'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.

Source: Dmand AI Affiliation Data

Dr. Glenn Eric Mathisen is affiliated with 1 site of care

Dr. Mathisen's primary practice is Olive View-UCLA Medical Center in Sylmar, California, part of County of Los Angeles. Dr. Mathisen's employer is on file too: a hospital.

See Dr. Mathisen's affiliation in Dmand AI

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Glenn Eric Mathisen's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mathisen practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Olive View-UCLA Medical CenterAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Glenn Eric Mathisen is one of 1,054 infectious disease specialists in California

Infectious disease is Dr. Mathisen's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Mathisen is board certified in infectious disease by the American Board of Internal Medicine. Dr. Mathisen is licensed in California.

Specialties and state licenses

  • Infectious disease, CaliforniaPrimaryLicense G44551 · 1981 to 2027 · taxonomy 207RI0200X

Clinical focus

Dmand AI lists anemia and sepsis among the conditions Dr. Mathisen treats.

Infectious disease specialists near Dr. Mathisen

Counts of infectious disease specialists 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. Glenn Eric Mathisen's patients have a median age of 56

Across all payers, Dmand AI patient panel data puts Dr. Mathisen's median patient age at 56, with 23% women.

Dr. Mathisen's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 56

Patient panel by sex, all payers

  • Women23%
  • Men77%

Source: Dmand AI Patient Panel Data

Dr. Glenn Eric Mathisen wrote 89 Medicare Part D claims in 2024

In 2024, Dr. Mathisen wrote 89 Medicare Part D claims for 19 patients. 72% of them were for generic drugs. They cover 11 drugs, with $209,953 in total drug cost. In 2022, CMS named 147 claims across 7 drugs.

Part D claims, 202489
Drugs named by CMS11
Total drug cost$209,953
Part D patients19

Dr. Mathisen's Part D claims by kind of drug, 2024

  • Generic64 claims72%
  • Brand-name25 claims28%

Dr. Mathisen's 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, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 1472023: 16110%

Drugs named by CMS: 11 in 2023, 7 in 2022.

See all prescribing by Dr. Mathisen

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

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Dr. Glenn Eric Mathisen has 4 publications on record

Dmand AI links 4 papers to Dr. Mathisen, published from 2023 to 2025. Dr. Mathisen's most frequent co-authors are Kevin Steven Kurator, Elyse Joy Singer, MD and Miguel Angel Valdes-Sueiras, MD.

Papers4
Years published2023 to 2025

Dr. Mathisen's most frequent co-authors

Recent publications by Dr. Mathisen

See all 4 publications and co-authors

See who Dr. Mathisen researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Mathisen works with, so you can find a warm path to the right infectious disease specialists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Glenn Eric Mathisen has worked on 1 clinical trial

Dmand AI links Dr. Mathisen to 1 clinical trial. 1 is still active or recruiting. Conditions studied include Multiple Organ Failure and Post-Acute COVID-19 Syndrome.

Conditions in Dr. Mathisen's trials

  • Multiple Organ Failure
  • Post-Acute COVID-19 Syndrome

Investigators on the most trials with Dr. Mathisen

Recent clinical trials with Dr. Mathisen

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Glenn Eric Mathisen received $194 in industry payments from 2016 to 2024

CMS Open Payments shows 4 general payments to Dr. Mathisen from 4 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $113.

General payments to Dr. Mathisen by program year, 2016 to 2024

Companies that paid Dr. Mathisen the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Mathisen

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Glenn Eric Mathisen graduated from Albany Medical College

Dr. Mathisen graduated from Albany Medical College in 1977.

  1. Medical schoolAlbany Medical College
  2. Board certified in infectious diseaseAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Glenn Eric Mathisen's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare 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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Glenn Eric Mathisen

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. Glenn Eric Mathisen's NPI number?

Dr. Glenn Eric Mathisen's NPI number is 1376564948. It was assigned on July 21, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Glenn Eric Mathisen?

Dr. Glenn Eric Mathisen is an infectious disease specialist in Sylmar, California. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).

Where does Dr. Glenn Eric Mathisen practice?

Dr. Mathisen practices at 14445 Olive View Drive, Sylmar, CA 91342. Dr. Mathisen's primary practice is Olive View-UCLA Medical Center in Sylmar, California, part of County of Los Angeles.

What is Dr. Glenn Eric Mathisen's office phone number?

The practice phone on file for Dr. Mathisen is (818) 364-1555.

What is Dr. Glenn Eric Mathisen's medical license number?

Dr. Mathisen holds California license G44551.

Which hospitals is Dr. Glenn Eric Mathisen affiliated with?

Dr. Mathisen practices at Olive View-UCLA Medical Center in Sylmar, California.

Is Dr. Glenn Eric Mathisen board certified?

Yes. Dr. Mathisen is board certified in infectious disease by the American Board of Internal Medicine.

Where did Dr. Glenn Eric Mathisen go to medical school?

Dr. Mathisen graduated from Albany Medical College in 1977.

What drugs does Dr. Glenn Eric Mathisen prescribe most?

In 2023 Medicare Part D data, Dr. Mathisen's most prescribed drugs by claims were Triumeq, Amlodipine Besylate and Atorvastatin Calcium.

Has Dr. Glenn Eric Mathisen received payments from drug or device companies?

CMS Open Payments shows $194 in general payments to Dr. Mathisen from 4 companies from 2016 to 2024. The largest total came from Merck Sharp & Dohme Corporation.

Show 3 more questionsShow fewer questions

How long has Dr. Glenn Eric Mathisen been practicing?

Dr. Mathisen graduated from medical school in 1977, 49 years ago.

Does Dr. Glenn Eric Mathisen do research?

Dmand AI links 4 publications to Dr. Mathisen, published from 2023 to 2025. Dr. Mathisen has worked on 1 clinical trial.

Who does Dr. Glenn Eric Mathisen publish with?

Dr. Mathisen's most frequent co-authors are Kevin Steven Kurator (1 shared paper), Elyse Joy Singer, MD (1 shared paper) and Miguel Angel Valdes-Sueiras, MD (1 shared paper).

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