DR. TOMASZ OBRZUT M.D.
NPI 1275761819
Emergency Medicine in New Haven, CT
About Dr. Tomasz Obrzut M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TOMASZ OBRZUT M.D. (NPI 1275761819) is an individual emergency medicine provider in New Haven, Connecticut, licensed in Maryland (D0075939) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with Holy Cross Hospital, and is a graduate of George Washington University School Of Medicine (2009).
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. Tomasz Obrzut 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
5Medicare enrollment records show Tomasz Obrzut reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21202
- Reassigned Medicare billing, Maryland enrollment
- 66 clinicians in this Medicare group
Baltimore, MD 21201
- Reassigned Medicare billing, Maryland enrollment
- 234 clinicians in this Medicare group
Laurel, MD 20707
- Reassigned Medicare billing, District of Columbia enrollment
- Medicare enrollment name: Emergency Medicine Associates P.A., P.C.
- 1,150 clinicians in this Medicare group
Silver Spring, MD 20910
- Reassigned Medicare billing, District of Columbia enrollment
- 105 clinicians in this Medicare group
Bethesda, MD 20814
- Reassigned Medicare billing, District of Columbia enrollment
- 57 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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Holy Cross Hospital
Acute Care Hospitals · Silver Spring, MDMercy Medical Center Inc
Acute Care Hospitals · Baltimore, MDHoly Cross Germantown Hospital
Acute Care Hospitals · Germantown, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06510 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
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 Tomasz Obrzut's NPI number?
The NPI number for Tomasz Obrzut is 1275761819. It was assigned to this individual provider in the NPPES registry on June 22, 2009.
Where is Tomasz Obrzut located?
Tomasz Obrzut practices at 20 York St # T-209 Yale-New Haven Hospital, New Haven, CT 06510. The listed phone number is (203) 688-2259.
What is Tomasz Obrzut's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Tomasz Obrzut enrolled in Medicare?
Yes. Tomasz Obrzut 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 Tomasz Obrzut's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tomasz Obrzut reassigns Medicare benefits to 5 organizations: Emergency Physicians Spps (Baltimore, MD), University Of Maryland Emergency Medicine Associates, PA (Baltimore, MD), Emergency Medicine Associates, PA (Laurel, MD), Cep America LLC (Silver Spring, MD) and Bethesda Emergency Associates LLC (Bethesda, MD). 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 Tomasz Obrzut's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Tomasz Obrzut affiliated with any hospitals?
According to CMS data, Tomasz Obrzut is affiliated with Holy Cross Hospital, Mercy Medical Center Inc and Holy Cross Germantown Hospital.
When was this NPI record last updated?
The NPPES record for Tomasz Obrzut was last updated on September 5, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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. Tomasz Obrzut, M.D. · NPI 1275761819
Emergency Medicine physician in New Haven, Connecticut. Individual provider, active in the CMS NPPES registry since June 22, 2009.
## Identity
- **NPI:** 1275761819 (Entity type: Individual)
- **Enumerated:** June 22, 2009
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** D0075939 (Maryland)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 20 YORK ST # T-209, YALE-NEW HAVEN HOSPITAL, New Haven, CT 06510-3220
- **Phone:** (203) 688-2259 · **Fax:** (203) 688-5599
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Emergency Physicians Spps (NPI 1760885958, Baltimore, MD); University Of Maryland Emergency Medicine Associates, PA (NPI 1811704208, Baltimore, MD); Emergency Medicine Associates, PA (NPI 1831940881, Laurel, MD); Cep America LLC (NPI 1851286041, Silver Spring, MD); Bethesda Emergency Associates LLC (NPI 1639125941, Bethesda, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** George Washington University School Of Medicine, class of 2009
## Record status
- **NPPES last updated:** September 5, 2013
---
Source: [NPI Profile](https://npiprofile.com/npi/1275761819) · Data from the CMS NPPES public registry.