DR. LYALL ARNOLD GORENSTEIN
NPI 1770580565
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Pomona, NY
About Dr. Lyall Arnold Gorenstein NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LYALL ARNOLD GORENSTEIN (NPI 1770580565) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Pomona, New York, licensed in New York (189748) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Englewood Hospital And Medical Center, and is a graduate of Other (1983).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
Accepted Insurance
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. Lyall Arnold Gorenstein 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
6Medicare enrollment records show Lyall Gorenstein reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pomona, NY 10970
- Reassigned Medicare billing, New York enrollment
- 9 clinicians in this Medicare group
Ridgewood, NJ 07450
- Reassigned Medicare billing, New Jersey enrollment
- 149 clinicians in this Medicare group
Englewood, NJ 07631
- Reassigned Medicare billing, New Jersey enrollment
- Medicare enrollment name: Bergen Thoracic And Vascular Associates PC
- 8 clinicians in this Medicare group
Goshen, NY 10924
- Reassigned Medicare billing, New York enrollment
- 9 clinicians in this Medicare group
New York, NY 10032
- Reassigned Medicare billing, New York enrollment
- 3,922 clinicians in this Medicare group
New York, NY 10032
- Reassigned Medicare billing, New York enrollment
- 124 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 8
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Englewood Hospital And Medical Center
Acute Care Hospitals · Englewood, NJNew York-Presbyterian Hospital
Acute Care Hospitals · New York, NYNyack Hospital
Acute Care Hospitals · Nyack, NYGarnet Health Medical Center
Acute Care Hospitals · Middletown, NYGood Samaritan Hospital Of Suffern
Acute Care Hospitals · Suffern, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10970 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 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
POMONA, NY 10970
POMONA, NY 10970
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 Lyall Gorenstein's NPI number?
The NPI number for Lyall Gorenstein is 1770580565. It was assigned to this individual provider in the NPPES registry on July 7, 2005.
Where is Lyall Gorenstein located?
Lyall Gorenstein practices at 5A Medical Park Dr, Pomona, NY 10970. The listed phone number is (845) 362-0075.
What is Lyall Gorenstein's specialty?
The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.
Is Lyall Gorenstein enrolled in Medicare?
Yes. Lyall Gorenstein 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 Lyall Gorenstein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lyall Gorenstein reassigns Medicare benefits to 6 organizations: Rockland Thoracic & Vascular Associates, P.C. (Pomona, NY), Columbia Doctors Of New Jersey, P. C. (Ridgewood, NJ), Bergen Thoracic And Vascular Associates P.C. (Englewood, NJ), Hudson Valley Thoracic & Vascular Assoc. PLLC (Goshen, NY), Trustees Of Columbia University In The City Of New York (New York, NY) and 1 more organization, listed in the Medicare section above. 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 Lyall Gorenstein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lyall Gorenstein accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list Lyall Gorenstein as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Lyall Gorenstein affiliated with any hospitals?
According to CMS data, Lyall Gorenstein is affiliated with Englewood Hospital And Medical Center, New York-Presbyterian Hospital, Nyack Hospital, Garnet Health Medical Center and Good Samaritan Hospital Of Suffern.
When was this NPI record last updated?
The NPPES record for Lyall Gorenstein was last updated on August 22, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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. Lyall Arnold Gorenstein · NPI 1770580565
Thoracic Surgery (Cardiothoracic Vascular Surgery) physician in Pomona, New York. Individual provider, active in the CMS NPPES registry since July 7, 2005.
## Identity
- **NPI:** 1770580565 (Entity type: Individual)
- **Enumerated:** July 7, 2005
- **Primary specialty:** Thoracic Surgery (Cardiothoracic Vascular Surgery) · taxonomy 208G00000X
- **State license:** 189748 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 5A MEDICAL PARK DR, Pomona, NY 10970-3516
- **Phone:** (845) 362-0075 · **Fax:** (845) 362-1716
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Rockland Thoracic & Vascular Associates, P.C. (NPI 1740235068, Pomona, NY); Columbia Doctors Of New Jersey, P. C. (NPI 1144459991, Ridgewood, NJ); Bergen Thoracic And Vascular Associates P.C. (NPI 1154742872, Englewood, NJ); Hudson Valley Thoracic & Vascular Assoc. PLLC (NPI 1326093972, Goshen, NY); Trustees Of Columbia University In The City Of New York (NPI 1508266347, New York, NY); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1983
## Record status
- **NPPES last updated:** August 22, 2013
- **Other identifiers:** Medicare UPIN F36804; Medicare PIN 77K7395181 (NY); Medicaid 01408933 (NY); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1770580565) · Data from the CMS NPPES public registry.