DR. ZACHARY TRZASKA MD
NPI 1053510768
Internal Medicine - Cardiovascular Disease in Portland, ME
About Dr. Zachary Trzaska Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ZACHARY TRZASKA MD (NPI 1053510768) is an individual cardiovascular disease provider in Portland, Maine, licensed in Maine (MD18556) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS, is affiliated with Northern Light Eastern Maine Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
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
Dr. Zachary Trzaska 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 Reassignments
6Medicare enrollment records show Zachary Trzaska reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Portland, ME 04102
- Reassigned Medicare billing, Maine enrollment
- 3,140 clinicians in this Medicare group
Biddeford, ME 04005
- Reassigned Medicare billing, Maine enrollment
- Medicare enrollment name: Southern Maine Health Care
- 253 clinicians in this Medicare group
Belfast, ME 04915
- Reassigned Medicare billing, Maine enrollment
- Medicare enrollment name: Waldo County General Hospital
- 82 clinicians in this Medicare group
Blue Hill, ME 04614
- Reassigned Medicare billing, Maine enrollment
- 125 clinicians in this Medicare group
Southwest Harbor, ME 04679
- Reassigned Medicare billing, Maine enrollment
- 97 clinicians in this Medicare group
Ellsworth, ME 04605
- Reassigned Medicare billing, Maine enrollment
- 174 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 22
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northern Light Eastern Maine Medical Center
Acute Care Hospitals · Bangor, MENorthern Light Maine Coast Hospital
Acute Care Hospitals · Ellsworth, MENorthern Light Blue Hill Memorial Hospital
Critical Access Hospitals · Blue Hill, MEMount Desert Island Hospital
Critical Access Hospitals · Bar Harbor, MEDown East Community Hospital
Critical Access Hospitals · Machias, MEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04102 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.
PORTLAND, ME 04102
PORTLAND, ME 04102
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 Zachary Trzaska's NPI number?
The NPI number for Zachary Trzaska is 1053510768. It was assigned to this individual provider in the NPPES registry on July 12, 2007.
Where is Zachary Trzaska located?
Zachary Trzaska practices at 22 Bramhall St, Portland, ME 04102. The listed phone number is (207) 662-7060.
What is Zachary Trzaska's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Zachary Trzaska enrolled in Medicare?
Yes. Zachary Trzaska 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 Zachary Trzaska's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Zachary Trzaska reassigns Medicare benefits to 6 organizations: Mainehealth (Portland, ME), Webber Hospital Association (Biddeford, ME), Mainehealth (Belfast, ME), The Blue Hill Memorial Hospital (Blue Hill, ME), Mount Desert Island Hospital (Southwest Harbor, ME) and 1 more organization, listed in the Medicare section above. 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 Zachary Trzaska's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Zachary Trzaska accept?
Health plans from Taro Health list Zachary Trzaska 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 Zachary Trzaska affiliated with any hospitals?
According to CMS data, Zachary Trzaska is affiliated with Northern Light Eastern Maine Medical Center, Northern Light Maine Coast Hospital, Northern Light Blue Hill Memorial Hospital, Mount Desert Island Hospital and Down East Community Hospital.
When was this NPI record last updated?
The NPPES record for Zachary Trzaska was last updated on April 1, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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. Zachary Trzaska, MD · NPI 1053510768
Cardiovascular Disease physician in Portland, Maine. Individual provider, active in the CMS NPPES registry since July 12, 2007.
## Identity
- **NPI:** 1053510768 (Entity type: Individual)
- **Enumerated:** July 12, 2007
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** MD18556 (Maine)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 22 BRAMHALL ST, Portland, ME 04102-3134
- **Phone:** (207) 662-7060
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Mainehealth (NPI 1073701157, Portland, ME); Webber Hospital Association (NPI 1942403266, Biddeford, ME); Mainehealth (NPI 1841397932, Belfast, ME); The Blue Hill Memorial Hospital (NPI 1023057809, Blue Hill, ME); Mount Desert Island Hospital (NPI 1235553413, Southwest Harbor, ME); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** April 1, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1053510768) · Data from the CMS NPPES public registry.