Gary J. Terzian, PA-C
- Part D claims, 2024
- 230
- Hospital affiliations
- 1
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2016
- Practice address
- 11600 N Indian Hills Rd, Mission Hills, CA 91345
- Practice phone
- Call (213) 623-2225
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Healthcare Partners Medical Group
Mission Hills, California
Find Gary Terzian'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.
Gary J. Terzian is a physician assistant in Mission Hills, California
Gary Terzian practices at Healthcare Partners Medical Group in Mission Hills, California.
Gary Terzian's NPI, 1174972897, was assigned on June 3, 2016. Gary Terzian holds California license 53457.
- NPI
- 1174972897NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305138918
- NPI enumeration date
- June 3, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (213) 623-2225
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Gary J. Terzian practices at Healthcare Partners Medical Group in Mission Hills, California
Gary Terzian's primary practice is Healthcare Partners Medical Group, at 11600 N Indian Hills Rd, Mission Hills, CA 91345 in Los Angeles County. The practice phone is (213) 623-2225.
- Healthcare Partners Medical Group11600 N Indian Hills Rd, Mission Hills, CA 91345 · Los Angeles CountyPhone(213) 623-2225
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Gary J. Terzian is affiliated with 3 sites of care and 2 medical groups
Gary Terzian's primary practice is Healthcare Partners Medical Group in Mission Hills, California. Gary Terzian is also affiliated with Olympia Medical Center. The medical group on file is Vituity. Dmand AI also links Gary Terzian to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Gary J. Terzian's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gary Terzian practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Healthcare Partners Medical Group | Available with a free account |
| +2 more sites and 1 medical group | 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.
Gary J. Terzian is one of 11,482 physician assistants in California
Physician assistant is Gary Terzian's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Gary Terzian is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Gary Terzian
Counts of physician assistants 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
Gary J. Terzian's patients have a median age of 75
Across all payers, Dmand AI patient panel data puts Gary Terzian's median patient age at 75, with 54% women.
Gary Terzian's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women54%
- Men45%
Source: Dmand AI Patient Panel Data
Gary J. Terzian wrote 230 Medicare Part D claims in 2024
In 2024, Gary Terzian wrote 230 Medicare Part D claims for 165 patients. 90% of them were for generic drugs.
Gary Terzian's Part D claims by kind of drug, 2024
- Generic208 claims90%
- Brand-name22 claims10%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Gary J. Terzian takes part in Medicare
Gary Terzian 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Sources for Gary J. Terzian'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 |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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 (CMS) (opens in a new tab) |
| 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 Gary J. Terzian
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gary J. Terzian's NPI number?
Gary J. Terzian's NPI number is 1174972897. It was assigned on June 3, 2016, and it is active in the NPI Registry.
What does Gary J. Terzian specialize in?
Gary J. Terzian is a physician assistant in Mission Hills, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Gary J. Terzian practice?
Gary Terzian practices at 11600 N Indian Hills Rd, Mission Hills, CA 91345. Gary Terzian's primary practice is Healthcare Partners Medical Group in Mission Hills, California. Dmand AI also links Gary Terzian to 1 group practice or clinic and 1 medical group.
What is Gary J. Terzian's office phone number?
The practice phone on file for Gary Terzian is (213) 623-2225.
What is Gary J. Terzian's medical license number?
Gary Terzian holds California license 53457.
Which hospitals is Gary J. Terzian affiliated with?
Gary Terzian is affiliated with Olympia Medical Center.
What medical group is Gary J. Terzian part of?
Gary Terzian is linked to Vituity. Dmand AI links Gary Terzian to 1 more medical group.
Does Gary J. Terzian accept Medicare?
Yes. CMS lists Gary Terzian as accepting Medicare assignment.
How long has Gary J. Terzian been practicing?
Gary Terzian graduated from medical school in 2016, 10 years ago.
Selling to physician assistant practices?
See physician assistants 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