DR. STEPHEN L ALLOY M.D.
NPI 1881662450
Psychiatry & Neurology - Psychiatry in Manchester, CT
About Dr. Stephen L Alloy M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEPHEN L ALLOY M.D. (NPI 1881662450) is an individual psychiatry provider in Manchester, Connecticut, licensed in Connecticut (21410) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of Temple University School Of Medicine (1976).
NPPES Registry Identity
Specialties & Licenses
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. Stephen L Alloy M.d. 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 Stephen Alloy reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Manchester, CT 06040
- Reassigned Medicare billing, Connecticut enrollment
- 94 clinicians in this Medicare group
Manchester, CT 06040
- Reassigned Medicare billing, Connecticut enrollment
- 60 clinicians in this Medicare group
Vernon, CT 06066
- Reassigned Medicare billing, Connecticut enrollment
- 96 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
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06042 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.
MANCHESTER, CT 06042
MANCHESTER, CT 06042
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 Stephen Alloy's NPI number?
The NPI number for Stephen Alloy is 1881662450. It was assigned to this individual provider in the NPPES registry on March 9, 2006.
Where is Stephen Alloy located?
Stephen Alloy practices at 150 N Main St, Manchester, CT 06042. The listed phone number is (860) 533-3434.
What is Stephen Alloy's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Stephen Alloy enrolled in Medicare?
Yes. Stephen Alloy 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 Stephen Alloy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Alloy reassigns Medicare benefits to 3 organizations: Prospect Manchester Hospital, Inc. (Manchester, CT), Manchester Memorial Hospital, Inc. (Manchester, CT) and Prospect Rockville Hospital, Inc. (Vernon, CT). 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 Stephen Alloy'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 Stephen Alloy was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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. Stephen L Alloy, M.D. · NPI 1881662450
Psychiatry physician in Manchester, Connecticut. Individual provider, active in the CMS NPPES registry since March 9, 2006.
## Identity
- **NPI:** 1881662450 (Entity type: Individual)
- **Enumerated:** March 9, 2006
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 21410 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 150 N MAIN ST, Manchester, CT 06042-2003
- **Phone:** (860) 533-3434
## 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): Prospect Manchester Hospital, Inc. (NPI 1225484751, Manchester, CT); Manchester Memorial Hospital, Inc. (NPI 1295695039, Manchester, CT); Prospect Rockville Hospital, Inc. (NPI 1205283538, Vernon, CT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Temple University School Of Medicine, class of 1976
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1881662450) · Data from the CMS NPPES public registry.