DR. PETER HAMILTON MD
NPI 1184203788
Anesthesiology in Port Jervis, NY
About Dr. Peter Hamilton Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PETER HAMILTON MD (NPI 1184203788) is an individual anesthesiology provider in Port Jervis, New York, licensed in New York (341825) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with Conemaugh Nason Medical Center, and is a graduate of Other (2025).
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. Peter Hamilton 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
3Medicare enrollment records show Peter Hamilton reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Valhalla, NY 10595
- Reassigned Medicare billing, New York enrollment
- 1,663 clinicians in this Medicare group
Roaring Spring, PA 16673
- Reassigned Medicare billing, Pennsylvania enrollment
- 104 clinicians in this Medicare group
Santa Rosa, CA 95404
- Reassigned Medicare billing, California enrollment
- 140 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Conemaugh Nason Medical Center
Acute Care Hospitals · Roaring Spring, PAConemaugh Memorial Medical Center
Acute Care Hospitals · Johnstown, PAOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PORT JERVIS, NY 12771
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 Peter Hamilton's NPI number?
The NPI number for Peter Hamilton is 1184203788. It was assigned to this individual provider in the NPPES registry on April 2, 2021.
Where is Peter Hamilton located?
Peter Hamilton practices at 160 E Main St, Port Jervis, NY 12771. The listed phone number is (845) 858-7000.
What is Peter Hamilton's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Peter Hamilton enrolled in Medicare?
Yes. Peter Hamilton 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 Peter Hamilton's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Peter Hamilton reassigns Medicare benefits to 3 organizations: Westchester Medical Center Advanced Physician Services PC (Valhalla, NY), Grove City Anesthesia & Pain Management, PLLC (Roaring Spring, PA) and Anesthesia & Analgesia Medical Group, Inc. (Santa Rosa, CA). 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 Peter Hamilton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Peter Hamilton affiliated with any hospitals?
According to CMS data, Peter Hamilton is affiliated with Conemaugh Nason Medical Center and Conemaugh Memorial Medical Center.
When was this NPI record last updated?
The NPPES record for Peter Hamilton was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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. Peter Hamilton, MD · NPI 1184203788
Anesthesiology physician in Port Jervis, New York. Individual provider, active in the CMS NPPES registry since April 2, 2021.
## Identity
- **NPI:** 1184203788 (Entity type: Individual)
- **Enumerated:** April 2, 2021
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 341825 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 160 E MAIN ST, Port Jervis, NY 12771-2114
- **Phone:** (845) 858-7000
## 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): Westchester Medical Center Advanced Physician Services PC (NPI 1740687458, Valhalla, NY); Grove City Anesthesia & Pain Management, PLLC (NPI 1528371556, Roaring Spring, PA); Anesthesia & Analgesia Medical Group, Inc. (NPI 1659320984, Santa Rosa, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2025
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1184203788) · Data from the CMS NPPES public registry.