Dr. Zack Nigogosyan, MD
- Hospital affiliations
- 1
- Industry payments
- $115
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2019
- Practice address
- One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110
- Practice phone
- Call (314) 747-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nigogosyan'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. Zack Nigogosyan is a diagnostic radiologist in Saint Louis, Missouri
Dr. Nigogosyan practices at Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health.
Dr. Nigogosyan's NPI, 1649822289, was assigned on July 14, 2019. Dr. Nigogosyan holds Missouri license 2025002605.
- NPI
- 1649822289NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3971010943
- NPI enumeration date
- July 14, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (314) 747-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Zack Nigogosyan practices at 2 locations in Saint Louis, Missouri
Dr. Nigogosyan's primary practice is Barnes-Jewish Hospital, at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 in St. Louis City. The practice phone is (314) 747-3000. Dr. Nigogosyan also practices at Barnes-Jewish Hospital, 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110.
- Barnes-Jewish HospitalPrimaryOne Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 · St. Louis CityPhone(314) 747-3000
- Barnes-Jewish Hospital1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110 · Saint Louis CityPhone(314) 747-3000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Zack Nigogosyan is affiliated with 3 sites of care and 2 medical groups
Dr. Nigogosyan's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. The medical group on file is WashU Medicine Psychiatry. Dmand AI also links Dr. Nigogosyan to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Zack Nigogosyan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nigogosyan practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Barnes-Jewish Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Zack Nigogosyan is one of 679 diagnostic radiologists in Missouri
Diagnostic radiology is Dr. Nigogosyan's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Nigogosyan is licensed in Missouri.
Specialties and state licenses
- Diagnostic radiology, MissouriPrimary
Diagnostic radiologists near Dr. Nigogosyan
Counts of diagnostic radiologists 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. Zack Nigogosyan's patients have a median age of 55
Across all payers, Dmand AI patient panel data puts Dr. Nigogosyan's median patient age at 55, with 67% women.
Dr. Nigogosyan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
How Dr. Zack Nigogosyan takes part in Medicare
Dr. Nigogosyan 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)
Dr. Zack Nigogosyan received $115 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Nigogosyan from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Route 92 Medical, Inc. paid the most, $115.
Companies that paid Dr. Nigogosyan the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Zack Nigogosyan'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 Affiliation DataDmand AI Practice 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) |
| Industry payments | Open Payments (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. Zack Nigogosyan
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. Zack Nigogosyan's NPI number?
Dr. Zack Nigogosyan's NPI number is 1649822289. It was assigned on July 14, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Zack Nigogosyan?
Dr. Zack Nigogosyan is a diagnostic radiologist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Zack Nigogosyan practice?
Dr. Nigogosyan practices at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110. Dr. Nigogosyan also practices at 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110. Dr. Nigogosyan's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. Dmand AI also links Dr. Nigogosyan to 2 group practices and clinics and 1 medical group.
What is Dr. Zack Nigogosyan's office phone number?
The practice phone on file for Dr. Nigogosyan is (314) 747-3000.
What is Dr. Zack Nigogosyan's medical license number?
Dr. Nigogosyan holds Missouri license 2025002605.
Which hospitals is Dr. Zack Nigogosyan affiliated with?
Dr. Nigogosyan practices at Barnes-Jewish Hospital in Saint Louis, Missouri.
What medical group is Dr. Zack Nigogosyan part of?
Dr. Nigogosyan is linked to WashU Medicine Psychiatry. Dmand AI links Dr. Nigogosyan to 1 more medical group.
Does Dr. Zack Nigogosyan accept Medicare?
Yes. CMS lists Dr. Nigogosyan as accepting Medicare assignment.
Has Dr. Zack Nigogosyan received payments from drug or device companies?
CMS Open Payments shows $115 in general payments to Dr. Nigogosyan from 1 company from 2025 to 2025. The largest total came from Route 92 Medical, Inc.
How long has Dr. Zack Nigogosyan been practicing?
Dr. Nigogosyan graduated from medical school in 2020, 6 years ago.
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