DR. CRISTIANA GENY PIERONI MD
NPI 1861525313
Ophthalmology in New York, NY
About Dr. Cristiana Geny Pieroni Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CRISTIANA GENY PIERONI MD (NPI 1861525313) is an individual ophthalmology provider in New York, New York, licensed in New York (235221) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2001).
NPPES Registry Identity
Specialties & Licenses
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. Cristiana Geny Pieroni 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
2Medicare enrollment records show Cristiana Pieroni reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10011
- Reassigned Medicare billing, New York enrollment
- 2 clinicians in this Medicare group
New York, NY 10002
- Reassigned Medicare billing, New York enrollment
- 1,615 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 13
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 10011 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 6
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 Cristiana Pieroni's NPI number?
The NPI number for Cristiana Pieroni is 1861525313. It was assigned to this individual provider in the NPPES registry on March 13, 2007.
Where is Cristiana Pieroni located?
Cristiana Pieroni practices at 20 W 13th St, New York, NY 10011. The listed phone number is (212) 604-9800.
What is Cristiana Pieroni's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Cristiana Pieroni enrolled in Medicare?
Yes. Cristiana Pieroni 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 Cristiana Pieroni's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cristiana Pieroni reassigns Medicare benefits to 2 organizations: Associated Retina Specialist, PLLC (New York, NY) and New York City Health And Hospitals Corporation (New York, NY). 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 Cristiana Pieroni's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Cristiana Pieroni was last updated on October 7, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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. Cristiana Geny Pieroni, MD · NPI 1861525313
Ophthalmology physician in New York, New York. Individual provider, active in the CMS NPPES registry since March 13, 2007.
## Identity
- **NPI:** 1861525313 (Entity type: Individual)
- **Enumerated:** March 13, 2007
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** 235221 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 20 W 13TH ST, New York, NY 10011-7995
- **Phone:** (212) 604-9800 · **Fax:** (212) 242-4757
## 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): Associated Retina Specialist, PLLC (NPI 1013240936, New York, NY); New York City Health And Hospitals Corporation (NPI 1497859573, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2001
## Record status
- **NPPES last updated:** October 7, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1861525313) · Data from the CMS NPPES public registry.