Marc Horwitz
- State license
- 1
- Year NPI issued
- 2014
- Practice address
- 10833 Le Conte Ave, Los Angeles, CA 90095-3075
- Practice phone
- Call (310) 206-0074
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Marc Horwitz'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.
Marc Horwitz is an internist in Los Angeles, California
Marc Horwitz practices in Los Angeles, California.
Marc Horwitz's NPI, 1295154409, was assigned on April 15, 2014. Marc Horwitz graduated from Vagelos College of Physicians and Surgeons in 1972. Marc Horwitz holds California license G54465.
- NPI
- 1295154409NPI Registry (opens in a new tab)
- NPI enumeration date
- April 15, 2014
- NPI status
- Active
- Practice phone
- (310) 206-0074
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Medical school graduation
- 1972
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Marc Horwitz's practice address is in Los Angeles, California
Marc Horwitz's practice address in the NPI Registry is 10833 Le Conte Ave, Los Angeles, CA 90095-3075. The practice phone is (310) 206-0074.
- NPI Registry address10833 Le Conte Ave, Los Angeles, CA 90095-3075Phone(310) 206-0074
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Marc Horwitz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marc Horwitz practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Marc Horwitz's practice | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Marc Horwitz is one of 16,751 internists in California
Internal medicine is Marc Horwitz's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Marc Horwitz is board certified in infectious disease by the American Board of Internal Medicine. Marc Horwitz is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Marc Horwitz
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
Marc Horwitz graduated from Vagelos College of Physicians and Surgeons
Marc Horwitz graduated from Vagelos College of Physicians and Surgeons in 1972.
- Medical school
- Board certified in infectious disease
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Marc Horwitz'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| 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 Marc Horwitz
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marc Horwitz's NPI number?
Marc Horwitz's NPI number is 1295154409. It was assigned on April 15, 2014, and it is active in the NPI Registry.
What does Marc Horwitz specialize in?
Marc Horwitz is an internist in Los Angeles, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Marc Horwitz practice?
Marc Horwitz practices at 10833 Le Conte Ave, Los Angeles, CA 90095-3075.
What is Marc Horwitz's office phone number?
The practice phone on file for Marc Horwitz is (310) 206-0074.
What is Marc Horwitz's medical license number?
Marc Horwitz holds California license G54465.
Is Marc Horwitz board certified?
Yes. Marc Horwitz is board certified in infectious disease by the American Board of Internal Medicine.
Where did Marc Horwitz go to medical school?
Marc Horwitz graduated from Vagelos College of Physicians and Surgeons in 1972.
How long has Marc Horwitz been practicing?
Marc Horwitz graduated from medical school in 1972, 54 years ago.
Selling to internal medicine practices?
See internists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card