ERNIE YAP MD
NPI 1407003734
Internal Medicine - Nephrology in Brooklyn, NY
About Ernie Yap Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ERNIE YAP MD (NPI 1407003734) is an individual nephrology provider in Brooklyn, New York, licensed in New York (296450) and active in the NPI registry since August 2008. He is enrolled in Medicare PECOS.
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 (PECOS)
Ernie Yap Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Ernie Yap reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Brooklyn, NY 11203
- Reassigned Medicare billing, New York enrollment
- 291 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 11203 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.
BROOKLYN, NY 11203
BROOKLYN, NY 11203
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 Ernie Yap's NPI number?
The NPI number for Ernie Yap is 1407003734. It was assigned to this individual provider in the NPPES registry on August 18, 2008.
Where is Ernie Yap located?
Ernie Yap practices at 450 Clarkson Ave, Brooklyn, NY 11203. The listed phone number is (718) 270-1000.
What is Ernie Yap's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Ernie Yap enrolled in Medicare?
Yes. Ernie Yap is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Ernie Yap's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ernie Yap reassigns Medicare benefits to University Physicians Of Brooklyn, Inc (Brooklyn, 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 Ernie Yap'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 Ernie Yap was last updated on July 17, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Ernie Yap, MD · NPI 1407003734
Nephrology physician in Brooklyn, New York. Individual provider, active in the CMS NPPES registry since August 18, 2008.
## Identity
- **NPI:** 1407003734 (Entity type: Individual)
- **Enumerated:** August 18, 2008
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** 296450 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 450 CLARKSON AVE, Brooklyn, NY 11203-2012
- **Phone:** (718) 270-1000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** University Physicians Of Brooklyn, Inc (NPI 1104878180, Brooklyn, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 17, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1407003734) · Data from the CMS NPPES public registry.