ABIGAIL CHRISTINE GILLOGLY HARSCH O.D.
NPI 1649655549
Optometrist - Corneal and Contact Management in Tahlequah, OK
About Abigail Christine Gillogly Harsch O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ABIGAIL CHRISTINE GILLOGLY HARSCH O.D. (NPI 1649655549) is an individual corneal and contact management provider in Tahlequah, Oklahoma, licensed in Oklahoma (2850) and active in the NPI registry since July 2015. She is enrolled in Medicare PECOS and is a graduate of University Of Houston - College Of Optometry (2015).
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
Abigail Christine Gillogly Harsch O.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 Abigail Gillogly Harsch reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Tyrone, PA 16686
- Reassigned Medicare billing, Pennsylvania enrollment
- 14 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 9
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 74464 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
TAHLEQUAH, OK 74464
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 Abigail Gillogly Harsch's NPI number?
The NPI number for Abigail Gillogly Harsch is 1649655549. It was assigned to this individual provider in the NPPES registry on July 21, 2015.
Where is Abigail Gillogly Harsch located?
Abigail Gillogly Harsch practices at 1001 N Grand Ave Northeastern State University Oklahoma College Of Optom, Tahlequah, OK 74464. The listed phone number is (918) 444-4031.
What is Abigail Gillogly Harsch's specialty?
The primary specialty registered for this NPI is Optometrist, specializing in Corneal and Contact Management, with taxonomy code 152WC0802X.
Is Abigail Gillogly Harsch enrolled in Medicare?
Yes. Abigail Gillogly Harsch 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 Abigail Gillogly Harsch's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Abigail Gillogly Harsch reassigns Medicare benefits to Nittany Eye Associates Ltd (Tyrone, PA). 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 Abigail Gillogly Harsch's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Abigail Gillogly Harsch accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Oklahoma and 11 other insurers list Abigail Gillogly Harsch 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 Abigail Gillogly Harsch was last updated on July 21, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Abigail Christine Gillogly Harsch, O.D. · NPI 1649655549
Corneal and Contact Management provider in Tahlequah, Oklahoma. Individual provider, active in the CMS NPPES registry since July 21, 2015.
## Identity
- **NPI:** 1649655549 (Entity type: Individual)
- **Enumerated:** July 21, 2015
- **Primary specialty:** Optometrist - Corneal and Contact Management · taxonomy 152WC0802X
- **State license:** 2850 (Oklahoma)
- **Sole proprietor:** No
## Practice location
- **Address:** 1001 N GRAND AVE, NORTHEASTERN STATE UNIVERSITY OKLAHOMA COLLEGE OF OPTOM, Tahlequah, OK 74464-7017
- **Phone:** (918) 444-4031
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Nittany Eye Associates Ltd (NPI 1336421965, Tyrone, PA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Houston - College Of Optometry, class of 2015
## Record status
- **NPPES last updated:** July 21, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1649655549) · Data from the CMS NPPES public registry.