DR. ZACHARY ZANIEWSKI DO
NPI 1609403104
Radiology - Diagnostic Radiology in Portland, ME
About Dr. Zachary Zaniewski Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ZACHARY ZANIEWSKI DO (NPI 1609403104) is an individual diagnostic radiology provider in Portland, Maine, licensed in Maine (DO3970) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Maine Medical Center, and is a graduate of University Of New England, College Of Osteo Medicine (2020).
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
Dr. Zachary Zaniewski Do 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 Zachary Zaniewski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Portland, ME 04102
- Reassigned Medicare billing, Maine and New Hampshire enrollments
- Also billed through NPI 1386757607 (New Hampshire), NPI 1023619939 (Maine), NPI 1417613456 (Maine)
- 61 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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Maine Medical Center
Acute Care Hospitals · Portland, MESt Mary's Regional Medical Center
Acute Care Hospitals · Lewiston, MELincolnhealth
Critical Access Hospitals · Damariscotta, MEMemorial Hospital, The
Critical Access Hospitals · North Conway, NHPhysician 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 Zaniewski's NPI number?
The NPI number for Zachary Zaniewski is 1609403104. It was assigned to this individual provider in the NPPES registry on March 25, 2020.
Where is Zachary Zaniewski located?
Zachary Zaniewski practices at 22 Bramhall St, Portland, ME 04102. The listed phone number is (508) 641-5299.
What is Zachary Zaniewski's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Zachary Zaniewski enrolled in Medicare?
Yes. Zachary Zaniewski 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 Zachary Zaniewski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Zachary Zaniewski reassigns Medicare benefits to Spectrum Healthcare Partners, PA (Portland, ME). 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 Zachary Zaniewski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Zachary Zaniewski accept?
Health plans from Taro Health list Zachary Zaniewski 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 Zaniewski affiliated with any hospitals?
According to CMS data, Zachary Zaniewski is affiliated with Maine Medical Center, St Mary's Regional Medical Center, Lincolnhealth and Memorial Hospital, The.
When was this NPI record last updated?
The NPPES record for Zachary Zaniewski was last updated on June 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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. Zachary Zaniewski, DO · NPI 1609403104
Diagnostic Radiology physician in Portland, Maine. Individual provider, active in the CMS NPPES registry since March 25, 2020.
## Identity
- **NPI:** 1609403104 (Entity type: Individual)
- **Enumerated:** March 25, 2020
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** DO3970 (Maine)
- **Sole proprietor:** No
## Practice location
- **Address:** 22 BRAMHALL ST, Portland, ME 04102-3175
- **Phone:** (508) 641-5299
## 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:** Spectrum Healthcare Partners, PA (NPI 1669488011, Portland, ME), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of New England, College Of Osteo Medicine, class of 2020
## Record status
- **NPPES last updated:** June 30, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1609403104) · Data from the CMS NPPES public registry.