KAREN MARIE DUNCAN MD
NPI 1356577977
Obstetrics & Gynecology in New York, NY
About Karen Marie Duncan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN MARIE DUNCAN MD (NPI 1356577977) is an individual obstetrics & gynecology provider in New York, New York, licensed in New York (273957) and active in the NPI registry since June 2009. She is enrolled in Medicare PECOS and is a graduate of University Of South Florida College Of Medicine (2009).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Karen Marie Duncan 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 Reassignment
Medicare enrollment records show Karen Duncan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boynton Beach, FL 33426
- Reassigned Medicare billing, New York enrollment
- 2,450 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 2
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 10022 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 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW YORK, NY 10022
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 Karen Duncan's NPI number?
The NPI number for Karen Duncan is 1356577977. It was assigned to this individual provider in the NPPES registry on June 10, 2009.
Where is Karen Duncan located?
Karen Duncan practices at 159 E 53rd St, New York, NY 10022. The listed phone number is (646) 754-2700.
What is Karen Duncan's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Karen Duncan enrolled in Medicare?
Yes. Karen Duncan 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 Karen Duncan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Duncan reassigns Medicare benefits to New York University (Boynton Beach, FL). 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 Karen Duncan'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 Karen Duncan was last updated on May 1, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Karen Marie Duncan, MD · NPI 1356577977
Obstetrics & Gynecology physician in New York, New York. Individual provider, active in the CMS NPPES registry since June 10, 2009.
## Identity
- **NPI:** 1356577977 (Entity type: Individual)
- **Enumerated:** June 10, 2009
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 273957 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 159 E 53RD ST, New York, NY 10022-4602
- **Phone:** (646) 754-2700
## 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:** New York University (NPI 1285826438, Boynton Beach, FL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of South Florida College Of Medicine, class of 2009
## Record status
- **NPPES last updated:** May 1, 2023
- **Other identifiers:** Other 14R2H (FL); Medicaid 009044600 (FL)
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Source: [NPI Profile](https://npiprofile.com/npi/1356577977) · Data from the CMS NPPES public registry.