GREGG H. GRINSPAN MD
NPI 1568558690
Emergency Medicine in Winsted, CT
About Gregg H. Grinspan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGG H. GRINSPAN MD (NPI 1568558690) is an individual emergency medicine provider in Winsted, Connecticut, licensed in Connecticut (023060) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Gregg H. Grinspan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Gregg Grinspan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Torrington, CT 06790
- Reassigned Medicare billing, Connecticut enrollment
- 62 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06098 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WINSTED, CT 06098
WINSTED, CT 06098
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 Gregg Grinspan's NPI number?
The NPI number for Gregg Grinspan is 1568558690. It was assigned to this individual provider in the NPPES registry on October 5, 2006.
Where is Gregg Grinspan located?
Gregg Grinspan practices at 115 Spencer St, Winsted, CT 06098. The listed phone number is (860) 738-6650.
What is Gregg Grinspan's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Gregg Grinspan enrolled in Medicare?
Yes. Gregg Grinspan is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Gregg Grinspan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregg Grinspan reassigns Medicare benefits to AFC Physicians Of Connecticut, PC (Torrington, CT). 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 Gregg Grinspan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Gregg Grinspan was last updated on January 15, 2020. 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.
# Gregg H. Grinspan, MD · NPI 1568558690
Emergency Medicine physician in Winsted, Connecticut. Individual provider, active in the CMS NPPES registry since October 5, 2006.
## Identity
- **NPI:** 1568558690 (Entity type: Individual)
- **Enumerated:** October 5, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 023060 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 115 SPENCER ST, Winsted, CT 06098-1140
- **Phone:** (860) 738-6650
## 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:** AFC Physicians Of Connecticut, PC (NPI 1467937268, Torrington, CT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 15, 2020
- **Other identifiers:** Other 023060
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Source: [NPI Profile](https://npiprofile.com/npi/1568558690) · Data from the CMS NPPES public registry.