Dr. Katherine Mattson Halper, MD
- Hospital affiliations
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2022
- 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. Halper'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. Katherine Mattson Halper is a hospitalist in Sylmar, California
Dr. Halper practices at Olive View-UCLA Medical Center in Sylmar, California, part of County of Los Angeles.
Dr. Halper's NPI, 1669112413, was assigned on March 30, 2022. Dr. Halper holds California license A190864.
- NPI
- 1669112413NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486127552
- NPI enumeration date
- March 30, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (818) 364-1555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Katherine Mattson Halper practices at Olive View-UCLA Medical Center in Sylmar, California
Dr. Halper'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. Katherine Mattson Halper is affiliated with 2 sites of care and 1 medical group
Dr. Halper's primary practice is Olive View-UCLA Medical Center in Sylmar, California, part of County of Los Angeles. Dr. Halper is also affiliated with Ronald Reagan UCLA Medical Center. The medical group on file is UCLA Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Katherine Mattson Halper's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Halper practices, 2 sites in all. 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 |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Katherine Mattson Halper is one of 3,186 hospitalists in California
Hospitalist is Dr. Halper's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Halper is licensed in California.
Specialties and state licenses
- Hospitalist, CaliforniaPrimary
Hospitalists near Dr. Halper
Counts of hospitalists 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. Katherine Mattson Halper's patients have a median age of 22
Across all payers, Dmand AI patient panel data puts Dr. Halper's median patient age at 22, with 57% women.
Dr. Halper's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 22
Patient panel by sex, all payers
- Women57%
- Men43%
Source: Dmand AI Patient Panel Data
How Dr. Katherine Mattson Halper takes part in Medicare
Dr. Halper 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)
Sources for Dr. Katherine Mattson Halper'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 |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Katherine Mattson Halper
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. Katherine Mattson Halper's NPI number?
Dr. Katherine Mattson Halper's NPI number is 1669112413. It was assigned on March 30, 2022, and it is active in the NPI Registry.
What kind of doctor is Dr. Katherine Mattson Halper?
Dr. Katherine Mattson Halper is a hospitalist in Sylmar, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Katherine Mattson Halper practice?
Dr. Halper practices at 14445 Olive View Drive, Sylmar, CA 91342. Dr. Halper's primary practice is Olive View-UCLA Medical Center in Sylmar, California, part of County of Los Angeles.
What is Dr. Katherine Mattson Halper's office phone number?
The practice phone on file for Dr. Halper is (818) 364-1555.
What is Dr. Katherine Mattson Halper's medical license number?
Dr. Halper holds California license A190864.
Which hospitals is Dr. Katherine Mattson Halper affiliated with?
Dr. Halper practices at Olive View-UCLA Medical Center in Sylmar, California. Dr. Halper is also affiliated with Ronald Reagan UCLA Medical Center.
What medical group is Dr. Katherine Mattson Halper part of?
Dr. Halper is linked to UCLA Medical Group.
Does Dr. Katherine Mattson Halper accept Medicare?
Yes. CMS lists Dr. Halper as accepting Medicare assignment.
How long has Dr. Katherine Mattson Halper been practicing?
Dr. Halper's NPI was assigned in 2022.
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