COREY MICHELSON MD
NPI 1851031579
Emergency Medicine in Worcester, MA
About Corey Michelson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
COREY MICHELSON MD (NPI 1851031579) is an individual emergency medicine provider in Worcester, Massachusetts, licensed in Massachusetts (1022151) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS, is affiliated with Umass Memorial Medical Center/university Campus, and is a graduate of Tufts University School Of Medicine (2022).
NPPES Registry Identity
Specialties & Licenses
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
Corey Michelson 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 Reassignment
Medicare enrollment records show Corey Michelson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Worcester, MA 01655
- Reassigned Medicare billing, Massachusetts enrollment
- 2,902 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Umass Memorial Medical Center/University Campus
Acute Care Hospitals · Worcester, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01655 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.
WORCESTER, MA 01655
WORCESTER, MA 01655
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 Corey Michelson's NPI number?
The NPI number for Corey Michelson is 1851031579. It was assigned to this individual provider in the NPPES registry on March 30, 2022.
Where is Corey Michelson located?
Corey Michelson practices at 55 Lake Ave N, Worcester, MA 01655. The listed phone number is (508) 334-1000.
What is Corey Michelson's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Corey Michelson enrolled in Medicare?
Yes. Corey Michelson 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 organization bills Medicare for Corey Michelson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Corey Michelson reassigns Medicare benefits to Umass Memorial Medical Group Inc (Worcester, MA). 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 Corey Michelson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Corey Michelson accept?
Health plans from Taro Health list Corey Michelson 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 Corey Michelson affiliated with any hospitals?
According to CMS data, Corey Michelson is affiliated with Umass Memorial Medical Center/University Campus.
When was this NPI record last updated?
The NPPES record for Corey Michelson was last updated on May 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Corey Michelson, MD · NPI 1851031579
Emergency Medicine physician in Worcester, Massachusetts. Individual provider, active in the CMS NPPES registry since March 30, 2022.
## Identity
- **NPI:** 1851031579 (Entity type: Individual)
- **Enumerated:** March 30, 2022
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 1022151 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 LAKE AVE N, Worcester, MA 01655-0002
- **Phone:** (508) 334-1000
## 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:** Umass Memorial Medical Group Inc (NPI 1760445373, Worcester, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tufts University School Of Medicine, class of 2022
## Record status
- **NPPES last updated:** May 6, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1851031579) · Data from the CMS NPPES public registry.