KARTHIK NATHAN MD
NPI 1225665235
Orthopaedic Surgery in Brooklyn, NY
About Karthik Nathan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KARTHIK NATHAN MD (NPI 1225665235) is an individual orthopaedic surgery provider in Brooklyn, New York, licensed in New York (312772) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, maintains a secondary practice location in Brooklyn, and is a graduate of Stanford University School Of Medicine (2020).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Karthik Nathan 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 Karthik Nathan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brooklyn, NY 11219
- Reassigned Medicare billing, New York enrollment
- 1,177 clinicians in this Medicare group
Brooklyn, NY 11219
- Reassigned Medicare billing, New York enrollment
- 49 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 11231 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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BROOKLYN, NY 11231
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 Karthik Nathan's NPI number?
The NPI number for Karthik Nathan is 1225665235. It was assigned to this individual provider in the NPPES registry on March 27, 2020.
Where is Karthik Nathan located?
Karthik Nathan practices at 330 Court St, Brooklyn, NY 11231. The listed phone number is (718) 283-7400.
What is Karthik Nathan's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Karthik Nathan enrolled in Medicare?
Yes. Karthik Nathan 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 Karthik Nathan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karthik Nathan reassigns Medicare benefits to 2 organizations: Maimonides Faculty Practice Plan (Brooklyn, NY) and Maimonides Medical Center Orthopaedic Fpp (Brooklyn, 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 Karthik Nathan'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 Karthik Nathan was last updated on August 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Karthik Nathan, MD · NPI 1225665235
Orthopaedic Surgery physician in Brooklyn, New York. Individual provider, active in the CMS NPPES registry since March 27, 2020.
## Identity
- **NPI:** 1225665235 (Entity type: Individual)
- **Enumerated:** March 27, 2020
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** 312772 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 330 COURT ST, Brooklyn, NY 11231-4334
- **Phone:** (718) 283-7400
## 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): Maimonides Faculty Practice Plan (NPI 1053344846, Brooklyn, NY); Maimonides Medical Center Orthopaedic Fpp (NPI 1073943163, Brooklyn, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Stanford University School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** August 11, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1225665235) · Data from the CMS NPPES public registry.