AISLINN KATHERINE MCMILLAN MD
NPI 1619627718
Emergency Medicine in New York, NY
About Aislinn Katherine Mcmillan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AISLINN KATHERINE MCMILLAN MD (NPI 1619627718) is an individual emergency medicine provider in New York, New York, licensed in New York (342539) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS, is affiliated with New York-presbyterian Hospital, and maintains a secondary practice location in New York.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Aislinn Katherine Mcmillan 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 Aislinn Mcmillan 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
Lancaster, CA 93535
- Reassigned Medicare billing, California enrollment
- 1,939 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.
New York-Presbyterian Hospital
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10032 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
NEW YORK, NY 10032
NEW YORK, NY 10032
NEW YORK, NY 10032
NEW YORK, NY 10032
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 Aislinn Mcmillan's NPI number?
The NPI number for Aislinn Mcmillan is 1619627718. It was assigned to this individual provider in the NPPES registry on March 24, 2022.
Where is Aislinn Mcmillan located?
Aislinn Mcmillan practices at 622 W 168th St, New York, NY 10032. The listed phone number is (212) 305-2500.
What is Aislinn Mcmillan's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Aislinn Mcmillan enrolled in Medicare?
Yes. Aislinn Mcmillan 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 Aislinn Mcmillan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aislinn Mcmillan reassigns Medicare benefits to 2 organizations: Trustees Of Columbia University In The City Of New York (New York, NY) and County Of Los Angeles (Lancaster, CA). 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 Aislinn Mcmillan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Aislinn Mcmillan affiliated with any hospitals?
According to CMS data, Aislinn Mcmillan is affiliated with New York-Presbyterian Hospital.
When was this NPI record last updated?
The NPPES record for Aislinn Mcmillan was last updated on July 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Aislinn Katherine Mcmillan, MD · NPI 1619627718
Emergency Medicine physician in New York, New York. Individual provider, active in the CMS NPPES registry since March 24, 2022.
## Identity
- **NPI:** 1619627718 (Entity type: Individual)
- **Enumerated:** March 24, 2022
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 342539 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 622 W 168TH ST, New York, NY 10032-3720
- **Phone:** (212) 305-2500
## 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 1508266347, New York, NY); County Of Los Angeles (NPI 1205354370, Lancaster, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** July 9, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1619627718) · Data from the CMS NPPES public registry.