MAXIM MARSHALIK
NPI 1871053975
Psychiatry & Neurology - Neurology in New York, NY
About Maxim Marshalik NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MAXIM MARSHALIK (NPI 1871053975) is an individual neurology provider in New York, New York, licensed in New York (327463) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with Mount Sinai St Luke's Roosevelt Hospital, and is a graduate of Rowan University School Of Osteopathic Medicine (2019).
NPPES Registry Identity
Specialties & Licenses 2
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
Maxim Marshalik 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 Reassignment
Medicare enrollment records show Maxim Marshalik reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Newyork, NY 10029
- Reassigned Medicare billing, New York enrollment
- 233 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.
Mount Sinai St Luke's Roosevelt Hospital
Acute Care Hospitals · New York, NYMount Sinai Beth Israel
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10019 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 10019
NEW YORK, NY 10019
NEW YORK, NY 10019
NEW YORK, NY 10019
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 Maxim Marshalik's NPI number?
The NPI number for Maxim Marshalik is 1871053975. It was assigned to this individual provider in the NPPES registry on March 23, 2019.
Where is Maxim Marshalik located?
Maxim Marshalik practices at 1000 10th Ave, New York, NY 10019. The listed phone number is (212) 523-4000.
What is Maxim Marshalik's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Maxim Marshalik enrolled in Medicare?
Yes. Maxim Marshalik 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 organization bills Medicare for Maxim Marshalik's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maxim Marshalik reassigns Medicare benefits to Icahn School Of Medicine At Mount Sinai (Newyork, NY). The 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 Maxim Marshalik's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Maxim Marshalik affiliated with any hospitals?
According to CMS data, Maxim Marshalik is affiliated with Mount Sinai St Luke's Roosevelt Hospital and Mount Sinai Beth Israel.
When was this NPI record last updated?
The NPPES record for Maxim Marshalik was last updated on February 23, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.
# Maxim Marshalik · NPI 1871053975
Neurology physician in New York, New York. Individual provider, active in the CMS NPPES registry since March 23, 2019.
## Identity
- **NPI:** 1871053975 (Entity type: Individual)
- **Enumerated:** March 23, 2019
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** 327463 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1000 10TH AVE, New York, NY 10019-1147
- **Phone:** (212) 523-4000
## 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:** Icahn School Of Medicine At Mount Sinai (NPI 1558627844, Newyork, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rowan University School Of Osteopathic Medicine, class of 2019
## Record status
- **NPPES last updated:** February 23, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1871053975) · Data from the CMS NPPES public registry.