COBY LYNN FLAGG
NPI 1790673101
Optometrist in Chicago, IL
About Coby Lynn Flagg NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
COBY LYNN FLAGG (NPI 1790673101) is an individual optometrist in Chicago, Illinois, licensed in Illinois (046011998) and active in the NPI registry since June 2025. She is enrolled in Medicare PECOS and is a graduate of Pacific University - College Of Optometry (2025).
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
Coby Lynn Flagg 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 Coby Flagg reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chicago, IL 60616
- Reassigned Medicare billing, Illinois enrollment
- 143 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60616 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.
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 Coby Flagg's NPI number?
The NPI number for Coby Flagg is 1790673101. It was assigned to this individual provider in the NPPES registry on June 25, 2025.
Where is Coby Flagg located?
Coby Flagg practices at 3241 S Michigan Ave, Chicago, IL 60616. The listed phone number is (312) 225-6200.
What is Coby Flagg's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Coby Flagg enrolled in Medicare?
Yes. Coby Flagg 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 Coby Flagg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Coby Flagg reassigns Medicare benefits to Illinois College Of Optometry (Chicago, IL). 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 Coby Flagg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Coby Flagg 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 8 other insurers list Coby Flagg 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 Coby Flagg was last updated on July 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Coby Lynn Flagg · NPI 1790673101
Optometrist provider in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since June 25, 2025.
## Identity
- **NPI:** 1790673101 (Entity type: Individual)
- **Enumerated:** June 25, 2025
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 046011998 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 3241 S MICHIGAN AVE, Chicago, IL 60616-4201
- **Phone:** (312) 225-6200
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Illinois College Of Optometry (NPI 1285612390, Chicago, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Pacific University - College Of Optometry, class of 2025
## Record status
- **NPPES last updated:** July 23, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1790673101) · Data from the CMS NPPES public registry.