ASHLEY SCHREIER
NPI 1447782248
Internal Medicine - Hematology & Oncology in Commack, NY
About Ashley Schreier NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ASHLEY SCHREIER (NPI 1447782248) is an individual hematology & oncology provider in Commack, New York, licensed in New York (304715) and active in the NPI registry since March 2017. 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
Ashley Schreier 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
3Medicare enrollment records show Ashley Schreier reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Commack, NY 11725
- Reassigned Medicare billing, New York enrollment
- 265 clinicians in this Medicare group
New York, NY 10021
- Reassigned Medicare billing, New York enrollment
- 68 clinicians in this Medicare group
New York, NY 10021
- Reassigned Medicare billing, New York enrollment
- 514 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 5
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.
New York-Presbyterian Hospital
Acute Care Hospitals · New York, NYQueens Hospital Center
Acute Care Hospitals · Jamaica, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11725 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.
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 Ashley Schreier's NPI number?
The NPI number for Ashley Schreier is 1447782248. It was assigned to this individual provider in the NPPES registry on March 30, 2017.
Where is Ashley Schreier located?
Ashley Schreier practices at 650 Commack Rd, Commack, NY 11725. The listed phone number is (631) 636-0590.
What is Ashley Schreier's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Ashley Schreier enrolled in Medicare?
Yes. Ashley Schreier 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 Ashley Schreier's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ashley Schreier reassigns Medicare benefits to 3 organizations: Mskcc Regional Network (Commack, NY), Weill Medical College Of Cornell (New York, NY) and Memorial Solid Tumor Group (New York, NY). 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 Ashley Schreier's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Ashley Schreier affiliated with any hospitals?
According to CMS data, Ashley Schreier is affiliated with New York-Presbyterian Hospital and Queens Hospital Center.
When was this NPI record last updated?
The NPPES record for Ashley Schreier was last updated on June 16, 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.
# Ashley Schreier · NPI 1447782248
Hematology & Oncology physician in Commack, New York. Individual provider, active in the CMS NPPES registry since March 30, 2017.
## Identity
- **NPI:** 1447782248 (Entity type: Individual)
- **Enumerated:** March 30, 2017
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** 304715 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 650 COMMACK RD, Commack, NY 11725-5404
- **Phone:** (631) 636-0590
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Mskcc Regional Network (NPI 1740251297, Commack, NY); Weill Medical College Of Cornell (NPI 1881604866, New York, NY); Memorial Solid Tumor Group (NPI 1699746172, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** June 16, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1447782248) · Data from the CMS NPPES public registry.