DR. ADRIAN NICHOLAS CHERNYK MD
NPI 1265012314
Hospitalist in New York, NY
About Dr. Adrian Nicholas Chernyk Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ADRIAN NICHOLAS CHERNYK MD (NPI 1265012314) is an individual hospitalist provider in New York, New York, licensed in New York (333927) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with Rapides Regional Medical Center, and maintains a secondary practice location in New York.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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. Adrian Nicholas Chernyk 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
5Medicare enrollment records show Adrian Chernyk reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10019
- Reassigned Medicare billing, New York enrollment
- 769 clinicians in this Medicare group
New Hyde Park, NY 11040
- Reassigned Medicare billing, New York enrollment
- 9,353 clinicians in this Medicare group
Riverhead, NY 11901
- Reassigned Medicare billing, New York enrollment
- 134 clinicians in this Medicare group
Sulphur, LA 70663
- Reassigned Medicare billing, Louisiana enrollment
- 121 clinicians in this Medicare group
Hardin, MT 59034
- Reassigned Medicare billing, Montana enrollment
- Medicare enrollment name: Scl Health Montana
- 186 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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Rapides Regional Medical Center
Acute Care Hospitals · Alexandria, LAPeconic Bay Medical Center
Acute Care Hospitals · Riverhead, NYLenox Hill Hospital
Acute Care Hospitals · New York, NYStaten Island University Hospital
Acute Care Hospitals · Staten Island, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10003 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 10003
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 Adrian Chernyk's NPI number?
The NPI number for Adrian Chernyk is 1265012314. It was assigned to this individual provider in the NPPES registry on April 13, 2021.
Where is Adrian Chernyk located?
Adrian Chernyk practices at First Avenue At 16th Street, New York, NY 10003. The listed phone number is (212) 844-1808.
What is Adrian Chernyk's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Adrian Chernyk enrolled in Medicare?
Yes. Adrian Chernyk 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 Adrian Chernyk's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Adrian Chernyk reassigns Medicare benefits to 5 organizations: Icahn School Of Medicine At Mount Sinai (New York, NY), North Shore - Lij Medical PC (New Hyde Park, NY), Central Suffolk Hospital (Riverhead, NY), Calcasieu Cameron Hospital Medicine Group LLC (Sulphur, LA) and St Vincent Healthcare (Hardin, MT). 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 Adrian Chernyk's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Adrian Chernyk accept?
Health plans from Blue Cross and Blue Shield of Montana and Mountain Health CO-OP list Adrian Chernyk 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 Adrian Chernyk affiliated with any hospitals?
According to CMS data, Adrian Chernyk is affiliated with Rapides Regional Medical Center, Peconic Bay Medical Center, Lenox Hill Hospital and Staten Island University Hospital.
When was this NPI record last updated?
The NPPES record for Adrian Chernyk was last updated on January 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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. Adrian Nicholas Chernyk, MD · NPI 1265012314
Hospitalist physician in New York, New York. Individual provider, active in the CMS NPPES registry since April 13, 2021.
## Identity
- **NPI:** 1265012314 (Entity type: Individual)
- **Enumerated:** April 13, 2021
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 333927 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** FIRST AVENUE AT 16TH STREET, New York, NY 10003
- **Phone:** (212) 844-1808
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Icahn School Of Medicine At Mount Sinai (NPI 1124550280, New York, NY); North Shore - Lij Medical PC (NPI 1790043479, New Hyde Park, NY); Central Suffolk Hospital (NPI 1043402050, Riverhead, NY); Calcasieu Cameron Hospital Medicine Group LLC (NPI 1659764967, Sulphur, LA); St Vincent Healthcare (NPI 1043266109, Hardin, MT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** January 16, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1265012314) · Data from the CMS NPPES public registry.