DR. MARIAN L LONGO O.D.
NPI 1801183751
Optometrist in Avon, IN
About Dr. Marian L Longo O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARIAN L LONGO O.D. (NPI 1801183751) is an individual optometrist in Avon, Indiana, licensed in Indiana (18004013A) and active in the NPI registry since June 2011. She is enrolled in Medicare PECOS and is a graduate of Illinois College Of Optometry At Chicago (2011).
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
Dr. Marian L Longo 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 Marian Longo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Avon, IN 46123
- Reassigned Medicare billing, Indiana enrollment
- 59 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 46123 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Marian Longo's NPI number?
The NPI number for Marian Longo is 1801183751. It was assigned to this individual provider in the NPPES registry on June 29, 2011.
Where is Marian Longo located?
Marian Longo practices at 7900 E Us Highway 36, Avon, IN 46123. The listed phone number is (317) 559-3530.
What is Marian Longo's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Marian Longo enrolled in Medicare?
Yes. Marian Longo 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 Marian Longo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marian Longo reassigns Medicare benefits to City Optical Co., Inc. (Avon, IN). 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 Marian Longo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marian Longo accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and Blue Cross Blue Shield of Wyoming and 8 other insurers list Marian Longo 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 Marian Longo was last updated on May 16, 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.
# Dr. Marian L Longo, O.D. · NPI 1801183751
Optometrist provider in Avon, Indiana. Individual provider, active in the CMS NPPES registry since June 29, 2011.
## Identity
- **NPI:** 1801183751 (Entity type: Individual)
- **Enumerated:** June 29, 2011
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 18004013A (Indiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 7900 E US HIGHWAY 36, Avon, IN 46123-7871
- **Phone:** (317) 559-3530
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** City Optical Co., Inc. (NPI 1174165229, Avon, IN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Illinois College Of Optometry At Chicago, class of 2011
## Record status
- **NPPES last updated:** May 16, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1801183751) · Data from the CMS NPPES public registry.