ANNETTE LYNN GIANGIACOMO MD
NPI 1912929019
Ophthalmology in Green Bay, WI
About Annette Lynn Giangiacomo Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANNETTE LYNN GIANGIACOMO MD (NPI 1912929019) is an individual ophthalmology provider in Green Bay, Wisconsin, licensed in Wisconsin (44891) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in Atlanta, and is a graduate of Other (2001).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Annette Lynn Giangiacomo Md 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
4Medicare enrollment records show Annette Giangiacomo reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Green Bay, WI 54303
- Reassigned Medicare billing, Wisconsin enrollment
- 10 clinicians in this Medicare group
Milwaukee, WI 53226
- Reassigned Medicare billing, Wisconsin enrollment
- 3,983 clinicians in this Medicare group
Atlanta, GA 30322
- Reassigned Medicare billing, Georgia enrollment
- 4,840 clinicians in this Medicare group
Atlanta, GA 30303
- Reassigned Medicare billing, Georgia enrollment
- 2,681 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 12
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54303 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare 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 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GREEN BAY, WI 54303
GREEN BAY, WI 54303
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 Annette Giangiacomo's NPI number?
The NPI number for Annette Giangiacomo is 1912929019. It was assigned to this individual provider in the NPPES registry on July 25, 2006.
Where is Annette Giangiacomo located?
Annette Giangiacomo practices at 1087 W Mason St, Green Bay, WI 54303. The listed phone number is (920) 499-3102.
What is Annette Giangiacomo's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Annette Giangiacomo enrolled in Medicare?
Yes. Annette Giangiacomo 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 Annette Giangiacomo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Annette Giangiacomo reassigns Medicare benefits to 4 organizations: Tower Clock Eye Center Sc (Green Bay, WI), The Medical College Of Wisconsin, Inc. (Milwaukee, WI), The Emory Clinic Inc (Atlanta, GA) and Emory Medical Care Foundation Inc (Atlanta, GA). 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 Annette Giangiacomo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Annette Giangiacomo accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare), Dean Health Plan and HealthPartners list Annette Giangiacomo 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.
When was this NPI record last updated?
The NPPES record for Annette Giangiacomo was last updated on June 4, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Annette Lynn Giangiacomo, MD · NPI 1912929019
Ophthalmology physician in Green Bay, Wisconsin. Individual provider, active in the CMS NPPES registry since July 25, 2006.
## Identity
- **NPI:** 1912929019 (Entity type: Individual)
- **Enumerated:** July 25, 2006
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** 44891 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 1087 W MASON ST, Green Bay, WI 54303-1859
- **Phone:** (920) 499-3102 · **Fax:** (920) 499-9636
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Tower Clock Eye Center Sc (NPI 1801998729, Green Bay, WI); The Medical College Of Wisconsin, Inc. (NPI 1699720086, Milwaukee, WI); The Emory Clinic Inc (NPI 1396798229, Atlanta, GA); Emory Medical Care Foundation Inc (NPI 1063452381, Atlanta, GA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2001
## Record status
- **NPPES last updated:** June 4, 2024
- **Other identifiers:** Other 00A911120 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1912929019) · Data from the CMS NPPES public registry.