DR. MUSTAFA ALI KHAN MD
NPI 1861489601
Psychiatry & Neurology - Neurology in Stony Brook, NY
About Dr. Mustafa Ali Khan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MUSTAFA ALI KHAN MD (NPI 1861489601) is an individual neurology provider in Stony Brook, New York, licensed in New York (202568) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Freeman Health System - Freeman West, and maintains 26 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 26
Accepted Insurance
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
Dr. Mustafa Ali Khan 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
21Medicare enrollment records show Mustafa Khan reassigns Medicare billing to 21 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Valhalla, NY 10595
- Reassigned Medicare billing, New York enrollment
- 1,663 clinicians in this Medicare group
Silver Springs, NY 14550
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Wyoming County
- 76 clinicians in this Medicare group
Gloucester, VA 23061
- Reassigned Medicare billing, Virginia enrollment
- 1,097 clinicians in this Medicare group
Lynchburg, VA 24503
- Reassigned Medicare billing, New York enrollment
- 7 clinicians in this Medicare group
Louisburg, NC 27549
- Reassigned Medicare billing, North Carolina enrollment
- Medicare enrollment name: Novant Health Medical Group, LLC
- 2,998 clinicians in this Medicare group
Greenville, NC 27834
- Reassigned Medicare billing, North Carolina and New York enrollments
- 1,653 clinicians in this Medicare group
Raleigh, NC 27610
- Reassigned Medicare billing, North Carolina enrollment
- 182 clinicians in this Medicare group
Abingdon, VA 24211
- Reassigned Medicare billing, Virginia and Tennessee enrollments
- Also billed through NPI 1558812198 (Tennessee)
- 262 clinicians in this Medicare group
Mishawaka, IN 46544
- Reassigned Medicare billing, Indiana enrollment
- 1,396 clinicians in this Medicare group
Brownsburg, IN 46112
- Reassigned Medicare billing, Indiana enrollment
- 401 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Freeman Health System - Freeman West
Acute Care Hospitals · Joplin, MOCentra Health - Lynchburg Gen Hospital
Acute Care Hospitals · Lynchburg, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11794 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.
STONY BROOK, NY 11794
STONY BROOK, NY 11794
STONY BROOK, NY 11794
STONY BROOK, NY 11794
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 Mustafa Khan's NPI number?
The NPI number for Mustafa Khan is 1861489601. It was assigned to this individual provider in the NPPES registry on October 5, 2005.
Where is Mustafa Khan located?
Mustafa Khan practices at 100 Nicolls Rd, Stony Brook, NY 11794. The listed phone number is (631) 444-8118.
What is Mustafa Khan's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Mustafa Khan enrolled in Medicare?
Yes. Mustafa Khan 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 Mustafa Khan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mustafa Khan reassigns Medicare benefits to 21 organizations: Westchester Medical Center Advanced Physician Services PC (Valhalla, NY), Wyoming County County Of Wyoming (Silver Springs, NY), Riverside Physician Services Inc (Gloucester, VA), Centra Medical Group, LLC (Lynchburg, VA), Novant Medical Group Inc (Louisburg, NC) and 16 more organizations, listed in the Medicare section above. 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 Mustafa Khan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mustafa Khan accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of NC, CareSource, Cigna Healthcare and CommunityCare and 2 other insurers list Mustafa Khan 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 Mustafa Khan affiliated with any hospitals?
According to CMS data, Mustafa Khan is affiliated with Freeman Health System - Freeman West and Centra Health - Lynchburg Gen Hospital.
When was this NPI record last updated?
The NPPES record for Mustafa Khan was last updated on July 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.
# Dr. Mustafa Ali Khan, MD · NPI 1861489601
Neurology physician in Stony Brook, New York. Individual provider, active in the CMS NPPES registry since October 5, 2005.
## Identity
- **NPI:** 1861489601 (Entity type: Individual)
- **Enumerated:** October 5, 2005
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** 202568 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 100 NICOLLS RD, Stony Brook, NY 11794-5151
- **Phone:** (631) 444-8118
## 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:** 21 organizations under Medicare reassignment (form CMS-855R): Westchester Medical Center Advanced Physician Services PC (NPI 1740687458, Valhalla, NY); Wyoming County County Of Wyoming (NPI 1720115017, Silver Springs, NY); Riverside Physician Services Inc (NPI 1790863645, Gloucester, VA); Centra Medical Group, LLC (NPI 1649228966, Lynchburg, VA); Novant Medical Group Inc (NPI 1942522008, Louisburg, NC); and 16 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1994
## Record status
- **NPPES last updated:** July 28, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1861489601) · Data from the CMS NPPES public registry.