Jack Demirjian, MD
Internal Medicine Physician · Austin, TX
Jack Demirjian, MD is an internal medicine physician with a practice address in Austin, Texas, and NPI 1609526714, issued on Mar 24, 2022. Check the license (Texas V6004, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Jack Demirjian
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- V6004 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1201 W 38TH St, Austin, TX 78705
- Phone
- (817) 313-1495
- Enumerated
- Mar 24, 2022
- Record last updated
- Jul 14, 2025
- Medicare enrollment
- Enrolled (PECOS I20250917000926); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 1201 W 38TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Steven Alexander, MDCardiovascular Disease Physician1306225784
- Laura Anderson, NNPNeonatal Nurse Practitioner1952355604
- Ogechi AnyanwuStudent in an Organized Health Care Education/Training Program1891621074
- Nicole Armstrong-Gurule, LCSWClinical Social Worker1316481849
- Hala Ashraf, DOEmergency Medicine Physician1871090027
- Teresa Bailey, RNC, NNPNeonatal Nurse Practitioner1407870421
Verify Jack Demirjian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license V6004Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
128 Medicare Part D claims for 61 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Usacs Integrated Acute Care Services OF Texas, PLLCAustin, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jack Demirjian among 9,175 internal medicine physician records in Texas
Jack Demirjian, MD is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 91% of them.
- NPI issued2022 · 91% of these records are older, 5% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2021 · median 2004 among the 6,088 with a school on file
- Record last updated2025 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
606 internal medicine physician records list a practice address in Austin
They are 606 of the 26,585 NPPES records with a practice address in Austin, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Austin → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Anthony Aventa, MDAustin, TX 787051801875034
- Sunil Cheruku, MDAustin, TX 787051235173345
- Nancy Foster, MDAustin, TX 787051588664957
- Robert Groves, MDAustin, TX 787051124007356
- Manjusha Gupte, MDAustin, TX 787051851387500
- Samson Jesudass, M.D.Austin, TX 787051619911385
- Jonathan Klocek, MDAustin, TX 787051265412910
- Kenneth Kroll, MDAustin, TX 787051831179589
Common questions
What is Jack Demirjian, MD's NPI number?
Jack Demirjian, MD's National Provider Identifier (NPI) is 1609526714, issued on Mar 24, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Jack Demirjian, MD located?
The NPPES record lists a practice address at 1201 W 38TH St, Austin, TX, 78705. Phone: (817) 313-1495. Providers update this record themselves, so call before visiting.
How can I verify Jack Demirjian, MD's license?
NPPES lists Texas license number V6004, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jack Demirjian, MD prescribe under Medicare Part D?
In 2024, Jack Demirjian, MD had 128 Medicare Part D claims for 61 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.