DR. WILLIAM THOMAS HILLMAN TERZIAN M.D.
NPI 1437564713
Surgery - Surgical Critical Care in Omaha, NE
About Dr. William Thomas Hillman Terzian M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM THOMAS HILLMAN TERZIAN M.D. (NPI 1437564713) is an individual surgical critical care provider in Omaha, Nebraska, licensed in Nebraska (33759) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS, is affiliated with The Nebraska Medical Center, and is a graduate of Other (2014).
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. William Thomas Hillman Terzian M.d. 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 William Terzian reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Omaha, NE 68198
- Reassigned Medicare billing, Nebraska enrollment
- 2,154 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.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
The Nebraska Medical Center
Acute Care Hospitals · Omaha, NEBellevue Medical Center, LLC
Acute Care Hospitals · Bellevue, NEOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
OMAHA, NE 68105
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 William Terzian's NPI number?
The NPI number for William Terzian is 1437564713. It was assigned to this individual provider in the NPPES registry on June 25, 2014.
Where is William Terzian located?
William Terzian practices at 4014 Leavenworth St, Omaha, NE 68105. The listed phone number is (402) 559-4017.
What is William Terzian's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Surgical Critical Care, with taxonomy code 2086S0102X.
Is William Terzian enrolled in Medicare?
Yes. William Terzian 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 William Terzian's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Terzian reassigns Medicare benefits to Unmc Physicians (Omaha, NE). 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 William Terzian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Terzian accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Absolute Total Care, Ambetter from Sunflower Health Plan and Ambetter of North Carolina and 5 other insurers list William Terzian 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 William Terzian affiliated with any hospitals?
According to CMS data, William Terzian is affiliated with The Nebraska Medical Center and Bellevue Medical Center, LLC.
When was this NPI record last updated?
The NPPES record for William Terzian was last updated on January 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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. William Thomas Hillman Terzian, M.D. · NPI 1437564713
Surgical Critical Care physician in Omaha, Nebraska. Individual provider, active in the CMS NPPES registry since June 25, 2014.
## Identity
- **NPI:** 1437564713 (Entity type: Individual)
- **Enumerated:** June 25, 2014
- **Primary specialty:** Surgery - Surgical Critical Care · taxonomy 2086S0102X
- **State license:** 33759 (Nebraska)
- **Sole proprietor:** No
## Practice location
- **Address:** 4014 LEAVENWORTH ST, Omaha, NE 68105-1026
- **Phone:** (402) 559-4017
## 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:** Unmc Physicians (NPI 1417912114, Omaha, NE), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** January 21, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1437564713) · Data from the CMS NPPES public registry.