DR. JACK DEMIRJIAN MD
NPI 1609526714
Internal Medicine in Austin, TX
About Dr. Jack Demirjian Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JACK DEMIRJIAN MD (NPI 1609526714) is an individual internal medicine provider in Austin, Texas, licensed in Texas (V6004) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS, is affiliated with Ascension Seton Medical Center Austin, and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Jack Demirjian Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Jack Demirjian reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Cedar Park, TX 78613
- Reassigned Medicare billing, Texas enrollment
- 828 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ascension Seton Medical Center Austin
Acute Care Hospitals · Austin, TXAscension Seton Northwest
Acute Care Hospitals · Austin, TXAscension Seton Williamson
Acute Care Hospitals · Round Rock, TXAscension Seton Hays
Acute Care Hospitals · Kyle, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78705 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
AUSTIN, TX 78705
AUSTIN, TX 78705
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Jack Demirjian's NPI number?
The NPI number for Jack Demirjian is 1609526714. It was assigned to this individual provider in the NPPES registry on March 24, 2022.
Where is Jack Demirjian located?
Jack Demirjian practices at 1201 W 38th St, Austin, TX 78705. The listed phone number is (817) 313-1495.
What is Jack Demirjian's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Jack Demirjian enrolled in Medicare?
Yes. Jack Demirjian is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Jack Demirjian's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jack Demirjian reassigns Medicare benefits to Usacs Integrated Acute Care Services Of Texas, PLLC (Cedar Park, TX). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Jack Demirjian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jack Demirjian accept?
Health plans from Blue Cross and Blue Shield of Texas and Sendero Health Plans, Local Nonprofit list Jack Demirjian as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Jack Demirjian affiliated with any hospitals?
According to CMS data, Jack Demirjian is affiliated with Ascension Seton Medical Center Austin, Ascension Seton Northwest, Ascension Seton Williamson and Ascension Seton Hays.
When was this NPI record last updated?
The NPPES record for Jack Demirjian was last updated on July 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Jack Demirjian, MD · NPI 1609526714
Internal Medicine physician in Austin, Texas. Individual provider, active in the CMS NPPES registry since March 24, 2022.
## Identity
- **NPI:** 1609526714 (Entity type: Individual)
- **Enumerated:** March 24, 2022
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** V6004 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 1201 W 38TH ST, Austin, TX 78705-1006
- **Phone:** (817) 313-1495
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Usacs Integrated Acute Care Services Of Texas, PLLC (NPI 1801300322, Cedar Park, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** July 14, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1609526714) · Data from the CMS NPPES public registry.