DR. ETHAN ANDREW MACK MD, PHD
NPI 1922627843
Pathology - Anatomic Pathology & Clinical Pathology in New York, NY
About Dr. Ethan Andrew Mack Md, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ETHAN ANDREW MACK MD, PHD (NPI 1922627843) is an individual anatomic pathology & clinical pathology provider in New York, New York, licensed in New York (334916) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, is affiliated with New York-presbyterian Hospital, and is a graduate of Other (2020).
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
Dr. Ethan Andrew Mack Md, Phd 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 Ethan Mack 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
Doylestown, PA 18901
- Reassigned Medicare billing, Pennsylvania enrollment
- 3,488 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
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.
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 Ethan Mack's NPI number?
The NPI number for Ethan Mack is 1922627843. It was assigned to this individual provider in the NPPES registry on April 10, 2020.
Where is Ethan Mack located?
Ethan Mack practices at 622 W 168th St Ph 1564W, New York, NY 10032. The listed phone number is (212) 305-7399.
What is Ethan Mack's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.
Is Ethan Mack enrolled in Medicare?
Yes. Ethan Mack 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 Ethan Mack's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ethan Mack reassigns Medicare benefits to 2 organizations: Trustees Of Columbia University In The City Of New York (New York, NY) and University Of Penn - Medical Group (Doylestown, PA). 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 Ethan Mack's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Ethan Mack affiliated with any hospitals?
According to CMS data, Ethan Mack is affiliated with New York-Presbyterian Hospital.
When was this NPI record last updated?
The NPPES record for Ethan Mack was last updated on June 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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. Ethan Andrew Mack, MD, PHD · NPI 1922627843
Anatomic Pathology & Clinical Pathology physician in New York, New York. Individual provider, active in the CMS NPPES registry since April 10, 2020.
## Identity
- **NPI:** 1922627843 (Entity type: Individual)
- **Enumerated:** April 10, 2020
- **Primary specialty:** Pathology - Anatomic Pathology & Clinical Pathology · taxonomy 207ZP0102X
- **State license:** 334916 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 622 W 168TH ST PH 1564W, New York, NY 10032-3720
- **Phone:** (212) 305-7399
## 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); University Of Penn - Medical Group (NPI 1538056163, Doylestown, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** June 4, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1922627843) · Data from the CMS NPPES public registry.