MARTIN SEDLACEK M.D.
NPI 1063455277
Internal Medicine - Nephrology in New York, NY
About Martin Sedlacek M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARTIN SEDLACEK M.D. (NPI 1063455277) is an individual nephrology provider in New York, New York, licensed in New York (310699) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Mount Sinai Hospital, and is a graduate of Other (1991).
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
Martin Sedlacek M.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 Martin Sedlacek reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New York, NY 10029
- Reassigned Medicare billing, New York enrollment
- 65 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 8
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mount Sinai Hospital
Acute Care Hospitals · New York, NYMount Sinai St Luke's Roosevelt Hospital
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10029 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.
NEW YORK, NY 10029
NEW YORK, NY 10029
NEW YORK, NY 10029
NEW YORK, NY 10029
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 Martin Sedlacek's NPI number?
The NPI number for Martin Sedlacek is 1063455277. It was assigned to this individual provider in the NPPES registry on June 14, 2006.
Where is Martin Sedlacek located?
Martin Sedlacek practices at 1 Gustave L Levy Pl, New York, NY 10029. The listed phone number is (212) 987-7208.
What is Martin Sedlacek's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Martin Sedlacek enrolled in Medicare?
Yes. Martin Sedlacek 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 Martin Sedlacek's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Martin Sedlacek reassigns Medicare benefits to Icahn School Of Medicine At Mount Sinai (New York, NY). 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 Martin Sedlacek's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Martin Sedlacek affiliated with any hospitals?
According to CMS data, Martin Sedlacek is affiliated with Mount Sinai Hospital and Mount Sinai St Luke's Roosevelt Hospital.
When was this NPI record last updated?
The NPPES record for Martin Sedlacek was last updated on November 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Martin Sedlacek, M.D. · NPI 1063455277
Nephrology physician in New York, New York. Individual provider, active in the CMS NPPES registry since June 14, 2006.
## Identity
- **NPI:** 1063455277 (Entity type: Individual)
- **Enumerated:** June 14, 2006
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** 310699 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 GUSTAVE L LEVY PL, New York, NY 10029-6504
- **Phone:** (212) 987-7208
## 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:** Icahn School Of Medicine At Mount Sinai (NPI 1730440777, New York, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1991
## Record status
- **NPPES last updated:** November 4, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1063455277) · Data from the CMS NPPES public registry.