DR. SETH L MILLER MD
NPI 1215032552
Internal Medicine - Gastroenterology in Long Beach, NY
About Dr. Seth L Miller Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SETH L MILLER MD (NPI 1215032552) is an individual gastroenterology provider in Long Beach, New York, licensed in New York (146620) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with North Shore University Hospital, and is a graduate of Icahn School Of Medicine At Mount Sinai (1980).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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. Seth L Miller 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
2Medicare enrollment records show Seth Miller reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Roosevelt, NY 11575
- Reassigned Medicare billing, New York enrollment
- 32 clinicians in this Medicare group
New Hyde Park, NY 11040
- Reassigned Medicare billing, New York enrollment
- 9,353 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
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.
North Shore University Hospital
Acute Care Hospitals · Manhasset, NYLong Island Jewish Medical Center
Acute Care Hospitals · New Hyde Park, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11561 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
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 Seth Miller's NPI number?
The NPI number for Seth Miller is 1215032552. It was assigned to this individual provider in the NPPES registry on September 13, 2006.
Where is Seth Miller located?
Seth Miller practices at 724 E Park Ave, Long Beach, NY 11561. The listed phone number is (516) 432-8021.
What is Seth Miller's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Seth Miller enrolled in Medicare?
Yes. Seth Miller 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 Seth Miller's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Seth Miller reassigns Medicare benefits to 2 organizations: United Cerebral Palsy Association Of Nassau County, Inc. (Roosevelt, NY) and North Shore - Lij Medical PC (New Hyde Park, 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 Seth Miller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Seth Miller affiliated with any hospitals?
According to CMS data, Seth Miller is affiliated with North Shore University Hospital and Long Island Jewish Medical Center.
When was this NPI record last updated?
The NPPES record for Seth Miller was last updated on June 3, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Dr. Seth L Miller, MD · NPI 1215032552
Gastroenterology physician in Long Beach, New York. Individual provider, active in the CMS NPPES registry since September 13, 2006.
## Identity
- **NPI:** 1215032552 (Entity type: Individual)
- **Enumerated:** September 13, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 146620 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 724 E PARK AVE, Long Beach, NY 11561-2605
- **Phone:** (516) 432-8021 · **Fax:** (516) 432-8179
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): United Cerebral Palsy Association Of Nassau County, Inc. (NPI 1720009715, Roosevelt, NY); North Shore - Lij Medical PC (NPI 1790043479, New Hyde Park, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Icahn School Of Medicine At Mount Sinai, class of 1980
## Record status
- **NPPES last updated:** June 3, 2016
- **Other identifiers:** Medicare UPIN C09702; Medicaid 00908094 (NY); Medicare PIN 42D871
---
Source: [NPI Profile](https://npiprofile.com/npi/1215032552) · Data from the CMS NPPES public registry.