DR. STEVEN M SEIDMAN M.D.
NPI 1114931219
Obstetrics & Gynecology in Woodbury, NY
About Dr. Steven M Seidman M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEVEN M SEIDMAN M.D. (NPI 1114931219) is an individual obstetrics & gynecology provider in Woodbury, New York, licensed in New York (139660) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through February 2, 2028, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Steven M Seidman M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Steven Seidman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Westbury, NY 11590
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Northwell Healthcare Inc
- 211 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.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 33D0939932
Steven M Seidman Premier Women's Health · Manhasset, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11797 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 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WOODBURY, NY 11797
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 Steven Seidman's NPI number?
The NPI number for Steven Seidman is 1114931219. It was assigned to this individual provider in the NPPES registry on July 27, 2006.
Where is Steven Seidman located?
Steven Seidman practices at 40 Crossways Park Dr Ste 101, Woodbury, NY 11797. The listed phone number is (516) 496-3900.
What is Steven Seidman's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Steven Seidman enrolled in Medicare?
Yes. Steven Seidman is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Steven Seidman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steven Seidman reassigns Medicare benefits to North Shore Long Island Jewish Healthcare (Westbury, NY). The 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 Steven Seidman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Does Steven Seidman hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 33D0939932) is associated with this NPI, valid through February 2, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Steven Seidman was last updated on December 3, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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. Steven M Seidman, M.D. · NPI 1114931219
Obstetrics & Gynecology physician in Woodbury, New York. Individual provider, active in the CMS NPPES registry since July 27, 2006.
## Identity
- **NPI:** 1114931219 (Entity type: Individual)
- **Enumerated:** July 27, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 139660 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 40 CROSSWAYS PARK DR STE 101, Woodbury, NY 11797
- **Phone:** (516) 496-3900
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** North Shore Long Island Jewish Healthcare (NPI 1215019500, Westbury, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 3, 2019
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1114931219) · Data from the CMS NPPES public registry.