DELNA MARY JOHN MD
NPI 1710340567
Emergency Medicine in Brooklyn, NY
About Delna Mary John Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DELNA MARY JOHN MD (NPI 1710340567) is an individual emergency medicine provider in Brooklyn, New York, licensed in New York (304811) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS, is affiliated with New York-presbyterian Hospital, and is a graduate of Eastern Virginia Medical School (2016).
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
Delna Mary John 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 Delna John 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 10032
- Reassigned Medicare billing, New York enrollment
- 3,922 clinicians in this Medicare group
Boynton Beach, FL 33426
- Reassigned Medicare billing, New York enrollment
- 7,712 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 3
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
New York-Presbyterian Hospital
Acute Care Hospitals · New York, NYPhysician 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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Delna John's NPI number?
The NPI number for Delna John is 1710340567. It was assigned to this individual provider in the NPPES registry on March 30, 2016.
Where is Delna John located?
Delna John practices at 450 Clarkson Ave, Brooklyn, NY 11203. The listed phone number is (917) 544-4787.
What is Delna John's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Delna John enrolled in Medicare?
Yes. Delna John 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 Delna John's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Delna John reassigns Medicare benefits to 2 organizations: Trustees Of Columbia University In The City Of New York (New York, NY) and New York University (Boynton Beach, FL). 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 Delna John's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Delna John affiliated with any hospitals?
According to CMS data, Delna John is affiliated with New York-Presbyterian Hospital.
When was this NPI record last updated?
The NPPES record for Delna John was last updated on August 9, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Delna Mary John, MD · NPI 1710340567
Emergency Medicine physician in Brooklyn, New York. Individual provider, active in the CMS NPPES registry since March 30, 2016.
## Identity
- **NPI:** 1710340567 (Entity type: Individual)
- **Enumerated:** March 30, 2016
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 304811 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 450 CLARKSON AVE, Brooklyn, NY 11203-2012
- **Phone:** (917) 544-4787
## 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): Trustees Of Columbia University In The City Of New York (NPI 1477068971, New York, NY); New York University (NPI 1285826438, Boynton Beach, FL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Eastern Virginia Medical School, class of 2016
## Record status
- **NPPES last updated:** August 9, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1710340567) · Data from the CMS NPPES public registry.