HELEN E GIANNAKOPOULOS MD DMD
NPI 1356379846
Oral & Maxillofacial Surgery in Pittsburgh, PA
About Helen E Giannakopoulos Md Dmd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HELEN E GIANNAKOPOULOS MD DMD (NPI 1356379846) is an individual oral & maxillofacial surgery provider in Pittsburgh, Pennsylvania, licensed in Pennsylvania (MD423518) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, is affiliated with Upmc Mercy, and is a graduate of Medical College Of Pennsylvania (1999).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
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
Helen E Giannakopoulos Md Dmd 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
2Medicare enrollment records show Helen Giannakopoulos reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pittsburgh, PA 15261
- Reassigned Medicare billing, Pennsylvania enrollment
- 16 clinicians in this Medicare group
Berwyn, PA 19312
- Reassigned Medicare billing, Pennsylvania enrollment
- 3,488 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Upmc Mercy
Acute Care Hospitals · Pittsburgh, PAUpmc Presbyterian Shadyside
Acute Care Hospitals · Pittsburgh, PAMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PITTSBURGH, PA 15261
PITTSBURGH, PA 15261
PITTSBURGH, PA 15261
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 Helen Giannakopoulos's NPI number?
The NPI number for Helen Giannakopoulos is 1356379846. It was assigned to this individual provider in the NPPES registry on June 30, 2006.
Where is Helen Giannakopoulos located?
Helen Giannakopoulos practices at 3501 Terrace Street G-32 Salk Hall, Pittsburgh, PA 15261. The listed phone number is (412) 648-6807.
What is Helen Giannakopoulos's specialty?
The primary specialty registered for this NPI is Oral & Maxillofacial Surgery with taxonomy code 204E00000X.
Is Helen Giannakopoulos enrolled in Medicare?
Yes. Helen Giannakopoulos 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 Helen Giannakopoulos's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Helen Giannakopoulos reassigns Medicare benefits to 2 organizations: University Dental Health Services, Inc. (Pittsburgh, PA) and University Of Penn-Medical Group (Berwyn, PA). 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 Helen Giannakopoulos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Helen Giannakopoulos accept?
Health plans from Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas, Florida Combined Life and Humana and 2 other insurers list Helen Giannakopoulos 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 Helen Giannakopoulos affiliated with any hospitals?
According to CMS data, Helen Giannakopoulos is affiliated with Upmc Mercy and Upmc Presbyterian Shadyside.
When was this NPI record last updated?
The NPPES record for Helen Giannakopoulos was last updated on June 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Helen E Giannakopoulos, MD DMD · NPI 1356379846
Oral & Maxillofacial Surgery physician in Pittsburgh, Pennsylvania. Individual provider, active in the CMS NPPES registry since June 30, 2006.
## Identity
- **NPI:** 1356379846 (Entity type: Individual)
- **Enumerated:** June 30, 2006
- **Primary specialty:** Oral & Maxillofacial Surgery · taxonomy 204E00000X
- **State license:** MD423518 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 3501 TERRACE STREET G-32 SALK HALL, Pittsburgh, PA 15261-0001
- **Phone:** (412) 648-6807 · **Fax:** (412) 648-6835
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): University Dental Health Services, Inc. (NPI 1194788653, Pittsburgh, PA); University Of Penn-Medical Group (NPI 1396133559, Berwyn, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical College Of Pennsylvania, class of 1999
## Record status
- **NPPES last updated:** June 20, 2025
- **Other identifiers:** Medicaid 0018968140003 (PA)
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Source: [NPI Profile](https://npiprofile.com/npi/1356379846) · Data from the CMS NPPES public registry.