NAISHA WILLIAMS RN
NPI 1649779851
Nurse Practitioner in Columbia, MD
About Naisha Williams Rn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NAISHA WILLIAMS RN (NPI 1649779851) is an individual nurse practitioner in Columbia, Maryland, licensed in Maryland (MD005349) and active in the NPI registry since February 2018. She is enrolled in Medicare PECOS, is affiliated with Mercy Medical Center Inc, and is a graduate of Other (2018).
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
Naisha Williams Rn 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 Naisha Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21202
- Reassigned Medicare billing, Maryland enrollment
- 257 clinicians in this Medicare group
Washington, DC 20037
- Reassigned Medicare billing, District of Columbia enrollment
- 1,275 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.
Mercy Medical Center Inc
Acute Care Hospitals · Baltimore, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21044 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
COLUMBIA, MD 21044
COLUMBIA, MD 21044
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 Naisha Williams's NPI number?
The NPI number for Naisha Williams is 1649779851. It was assigned to this individual provider in the NPPES registry on February 3, 2018.
Where is Naisha Williams located?
Naisha Williams practices at 5999 Harpers Farm Rd Ste W230, Columbia, MD 21044. The listed phone number is (410) 834-1480.
What is Naisha Williams's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Naisha Williams enrolled in Medicare?
Yes. Naisha Williams 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 Naisha Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Naisha Williams reassigns Medicare benefits to 2 organizations: Maryland Family Care, Inc. (Baltimore, MD) and Medical Faculty Associates, Inc (Washington, DC). 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 Naisha Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Naisha Williams affiliated with any hospitals?
According to CMS data, Naisha Williams is affiliated with Mercy Medical Center Inc.
When was this NPI record last updated?
The NPPES record for Naisha Williams was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days 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.
# Naisha Williams, RN · NPI 1649779851
Nurse Practitioner physician in Columbia, Maryland. Individual provider, active in the CMS NPPES registry since February 3, 2018.
## Identity
- **NPI:** 1649779851 (Entity type: Individual)
- **Enumerated:** February 3, 2018
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** MD005349 (Maryland)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 5999 HARPERS FARM RD STE W230, Columbia, MD 21044-3025
- **Phone:** (410) 834-1480
## 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): Maryland Family Care, Inc. (NPI 1598718256, Baltimore, MD); Medical Faculty Associates, Inc (NPI 1417990581, Washington, DC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** September 29, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1649779851) · Data from the CMS NPPES public registry.