MR. ZVI A ALPERN MD
NPI 1023115748
Internal Medicine - Gastroenterology in Smithtown, NY
About Mr. Zvi A Alpern Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. ZVI A ALPERN MD (NPI 1023115748) is an individual gastroenterology provider in Smithtown, New York, licensed in New York (156485) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Good Samaritan Hospital Medical Center, and is a graduate of Other (1976).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 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
Mr. Zvi A Alpern 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 Zvi Alpern reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Smithtown, NY 11787
- Reassigned Medicare billing, New York enrollment
East Setauket, NY 11733
- Reassigned Medicare billing, New York enrollment
- 60 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 15
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Good Samaritan Hospital Medical Center
Acute Care Hospitals · West Islip, NYSuny/Stony Brook University Hospital
Acute Care Hospitals · Stony Brook, NYSt Catherine Of Siena Hospital Medical Center
Acute Care Hospitals · Smithtown, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11787 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
SMITHTOWN, NY 11787
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 Zvi Alpern's NPI number?
The NPI number for Zvi Alpern is 1023115748. It was assigned to this individual provider in the NPPES registry on September 17, 2006.
Where is Zvi Alpern located?
Zvi Alpern practices at 48 Route 25A Ste 307, Smithtown, NY 11787. The listed phone number is (631) 265-0062.
What is Zvi Alpern's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Zvi Alpern enrolled in Medicare?
Yes. Zvi Alpern 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 Zvi Alpern's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Zvi Alpern reassigns Medicare benefits to 2 organizations: Long Island Gastroenterology And Liver Disease P.C. (Smithtown, NY) and Digestive Disease Care, PC (East Setauket, 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 Zvi Alpern's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Zvi Alpern affiliated with any hospitals?
According to CMS data, Zvi Alpern is affiliated with Good Samaritan Hospital Medical Center, Suny/Stony Brook University Hospital and St Catherine Of Siena Hospital Medical Center.
When was this NPI record last updated?
The NPPES record for Zvi Alpern was last updated on May 1, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Mr. Zvi A Alpern, MD · NPI 1023115748
Gastroenterology physician in Smithtown, New York. Individual provider, active in the CMS NPPES registry since September 17, 2006.
## Identity
- **NPI:** 1023115748 (Entity type: Individual)
- **Enumerated:** September 17, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 156485 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 48 ROUTE 25A, STE 307, Smithtown, NY 11787-1431
- **Phone:** (631) 265-0062 · **Fax:** (631) 265-0590
## 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): Long Island Gastroenterology And Liver Disease P.C. (NPI 1194025973, Smithtown, NY); Digestive Disease Care, PC (NPI 1184871774, East Setauket, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1976
## Record status
- **NPPES last updated:** May 1, 2008
- **Other identifiers:** Medicare PIN 54D291 (NY); Medicare UPIN A40458
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Source: [NPI Profile](https://npiprofile.com/npi/1023115748) · Data from the CMS NPPES public registry.