DR. MARK ALAN HAMILTON MD
NPI 1013544311
Radiology - Diagnostic Radiology in New York, NY
About Dr. Mark Alan Hamilton Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK ALAN HAMILTON MD (NPI 1013544311) is an individual diagnostic radiology provider in New York, New York, licensed in New York (318815) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS.
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 (PECOS)
Dr. Mark Alan Hamilton Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Mark Hamilton reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Livingston, NJ 07039
- Reassigned Medicare billing, New Jersey enrollment
- 1,913 clinicians in this Medicare group
Somerset, NJ 08873
- Reassigned Medicare billing, New Jersey enrollment
- 1,557 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10016 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 10016
NEW YORK, NY 10016
NEW YORK, NY 10016
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 Mark Hamilton's NPI number?
The NPI number for Mark Hamilton is 1013544311. It was assigned to this individual provider in the NPPES registry on March 25, 2020.
Where is Mark Hamilton located?
Mark Hamilton practices at 150 E 32nd St, New York, NY 10016. The listed phone number is (212) 263-8868.
What is Mark Hamilton's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Mark Hamilton enrolled in Medicare?
Yes. Mark Hamilton is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Mark Hamilton's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Hamilton reassigns Medicare benefits to 2 organizations: Rwjbh Observation Associates LLC (Livingston, NJ) and Rwjbh Emergency Medicine Associates, LLC (Somerset, NJ). 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 Mark Hamilton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Mark Hamilton was last updated on April 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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. Mark Alan Hamilton, MD · NPI 1013544311
Diagnostic Radiology physician in New York, New York. Individual provider, active in the CMS NPPES registry since March 25, 2020.
## Identity
- **NPI:** 1013544311 (Entity type: Individual)
- **Enumerated:** March 25, 2020
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 318815 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 150 E 32ND ST, New York, NY 10016-6058
- **Phone:** (212) 263-8868
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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): Rwjbh Observation Associates LLC (NPI 1760095806, Livingston, NJ); Rwjbh Emergency Medicine Associates, LLC (NPI 1912510041, Somerset, NJ) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 21, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1013544311) · Data from the CMS NPPES public registry.