THERESA GERGES D.O
NPI 1700203965
Anesthesiology in Summit, NJ
About Theresa Gerges D.o NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THERESA GERGES D.O (NPI 1700203965) is an individual anesthesiology provider in Summit, New Jersey, licensed in New Jersey (25MB10358200) and active in the NPI registry since March 2014. She is enrolled in Medicare PECOS, is affiliated with Overlook Medical Center, and maintains a secondary practice location in Newark.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Group Practice 1
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
Theresa Gerges D.o 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 Reassignments
3Medicare enrollment records show Theresa Gerges reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Livingston, NJ 07039
- Reassigned Medicare billing, New Jersey enrollment
- 1,913 clinicians in this Medicare group
Somerset, NJ 08873
- Reassigned Medicare billing, New Jersey enrollment
- 1,557 clinicians in this Medicare group
Brick, NJ 08724
- Reassigned Medicare billing, New Jersey enrollment
- 177 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Overlook Medical Center
Acute Care Hospitals · Summit, NJOther Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Theresa Gerges's NPI number?
The NPI number for Theresa Gerges is 1700203965. It was assigned to this individual provider in the NPPES registry on March 26, 2014.
Where is Theresa Gerges located?
Theresa Gerges practices at 33 Overlook Rd Ste 311, Summit, NJ 07901. The listed phone number is (908) 598-1500.
What is Theresa Gerges's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Theresa Gerges enrolled in Medicare?
Yes. Theresa Gerges 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 organizations bill Medicare for Theresa Gerges's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Theresa Gerges reassigns Medicare benefits to 3 organizations: Rwjbh Observation Associates LLC (Livingston, NJ), Rwjbh Emergency Medicine Associates, LLC (Somerset, NJ) and North American Partners In Anesthesia Of New Jersey LLC (Brick, NJ). Each 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 Theresa Gerges's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Theresa Gerges affiliated with any hospitals?
According to CMS data, Theresa Gerges is affiliated with Overlook Medical Center.
When was this NPI record last updated?
The NPPES record for Theresa Gerges was last updated on July 4, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years 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.
# Theresa Gerges, D.O · NPI 1700203965
Anesthesiology physician in Summit, New Jersey. Individual provider, active in the CMS NPPES registry since March 26, 2014.
## Identity
- **NPI:** 1700203965 (Entity type: Individual)
- **Enumerated:** March 26, 2014
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 25MB10358200 (New Jersey)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 33 OVERLOOK RD STE 311, Summit, NJ 07901
- **Phone:** (908) 598-1500
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Rwjbh Observation Associates LLC (NPI 1760095806, Livingston, NJ); Rwjbh Emergency Medicine Associates, LLC (NPI 1912510041, Somerset, NJ); North American Partners In Anesthesia Of New Jersey LLC (NPI 1548433048, Brick, NJ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** July 4, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1700203965) · Data from the CMS NPPES public registry.