DR. RONALD JAMES REISS MD
NPI 1114085206
Obstetrics & Gynecology in Harrison, NY
About Dr. Ronald James Reiss Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RONALD JAMES REISS MD (NPI 1114085206) is an individual obstetrics & gynecology provider in Harrison, New York, licensed in New York (132418-1) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, is affiliated with Suny/stony Brook University Hospital, and is a graduate of Other (1976).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 9
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. Ronald James Reiss 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 Ronald Reiss reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
White Plains, NY 10601
- Reassigned Medicare billing, New York enrollment
- 445 clinicians in this Medicare group
Stony Brook, NY 11794
- Reassigned Medicare billing, New York enrollment
- 125 clinicians in this Medicare group
Niskayuna, NY 12309
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Obgyn Hospitalist Medical Services Of New York PC
- 125 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 5
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Suny/Stony Brook University Hospital
Acute Care Hospitals · Stony Brook, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10528 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.
HARRISON, NY 10528
HARRISON, NY 10528
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 Ronald Reiss's NPI number?
The NPI number for Ronald Reiss is 1114085206. It was assigned to this individual provider in the NPPES registry on December 4, 2006.
Where is Ronald Reiss located?
Ronald Reiss practices at 600 Mamaroneck Ave, Harrison, NY 10528. The listed phone number is (914) 723-8100.
What is Ronald Reiss's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Ronald Reiss enrolled in Medicare?
Yes. Ronald Reiss 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 Ronald Reiss's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ronald Reiss reassigns Medicare benefits to 3 organizations: White Plains Physician Services PC (White Plains, NY), University Associates In Obstetrics & Gynecology, University Faculty P (Stony Brook, NY) and Obgyn Hospitalist Medical Services Of New York, P.C. (Niskayuna, 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 Ronald Reiss's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Ronald Reiss affiliated with any hospitals?
According to CMS data, Ronald Reiss is affiliated with Suny/Stony Brook University Hospital.
When was this NPI record last updated?
The NPPES record for Ronald Reiss was last updated on March 27, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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. Ronald James Reiss, MD · NPI 1114085206
Obstetrics & Gynecology physician in Harrison, New York. Individual provider, active in the CMS NPPES registry since December 4, 2006.
## Identity
- **NPI:** 1114085206 (Entity type: Individual)
- **Enumerated:** December 4, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 132418-1 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 600 MAMARONECK AVE, Harrison, NY 10528-1635
- **Phone:** (914) 723-8100
## 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): White Plains Physician Services PC (NPI 1124502687, White Plains, NY); University Associates In Obstetrics & Gynecology, University Faculty P (NPI 1538114723, Stony Brook, NY); Obgyn Hospitalist Medical Services Of New York, P.C. (NPI 1518285055, Niskayuna, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1976
## Record status
- **NPPES last updated:** March 27, 2019
- **Other identifiers:** Other 0018902; Other 1C8775; Other 2594472; and 6 more
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Source: [NPI Profile](https://npiprofile.com/npi/1114085206) · Data from the CMS NPPES public registry.