NIA LEAK MD
NPI 1821008491
Obstetrics & Gynecology in Columbia, MD
About Nia Leak Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NIA LEAK MD (NPI 1821008491) is an individual obstetrics & gynecology provider in Columbia, Maryland, licensed in Maryland (D73027) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Howard County Medical Center, and is a graduate of University Of Maryland School Of Medicine (1999).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Nia Leak Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Nia Leak reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Columbia, MD 21044
- Reassigned Medicare billing, Maryland enrollment
- 4,483 clinicians in this Medicare group
Baltimore, MD 21239
- Reassigned Medicare billing, Maryland enrollment
- 2,602 clinicians in this Medicare group
Salisbury, MD 21801
- Reassigned Medicare billing, Maryland enrollment
- 531 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Johns Hopkins Howard County Medical Center
Acute Care Hospitals · Columbia, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21046 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 16
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
COLUMBIA, MD 21046
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 Nia Leak's NPI number?
The NPI number for Nia Leak is 1821008491. It was assigned to this individual provider in the NPPES registry on August 8, 2006.
Where is Nia Leak located?
Nia Leak practices at 6350 Stevens Forest Rd, Columbia, MD 21046. The listed phone number is (443) 259-3770.
What is Nia Leak's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Nia Leak enrolled in Medicare?
Yes. Nia Leak is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Nia Leak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nia Leak reassigns Medicare benefits to 3 organizations: Johns Hopkins University (Columbia, MD), Medstar Medical Group II LLC (Baltimore, MD) and Tidalhealth Specialty Care, LLC (Salisbury, MD). 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 Nia Leak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nia Leak accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and AmeriHealth Caritas Next list Nia Leak as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Nia Leak affiliated with any hospitals?
According to CMS data, Nia Leak is affiliated with Johns Hopkins Howard County Medical Center.
When was this NPI record last updated?
The NPPES record for Nia Leak was last updated on December 1, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Nia Leak, MD · NPI 1821008491
Obstetrics & Gynecology physician in Columbia, Maryland. Individual provider, active in the CMS NPPES registry since August 8, 2006.
## Identity
- **NPI:** 1821008491 (Entity type: Individual)
- **Enumerated:** August 8, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** D73027 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 6350 STEVENS FOREST RD, Columbia, MD 21046-3231
- **Phone:** (443) 259-3770
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Johns Hopkins University (NPI 1285453795, Columbia, MD); Medstar Medical Group II LLC (NPI 1184046187, Baltimore, MD); Tidalhealth Specialty Care, LLC (NPI 1619504735, Salisbury, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Maryland School Of Medicine, class of 1999
## Record status
- **NPPES last updated:** December 1, 2016
- **Other identifiers:** Medicaid 1821008491 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1821008491) · Data from the CMS NPPES public registry.