Thaddeus W Herliczek, MD
Diagnostic Radiology · Interventional Radiology (CMS) · Boston, MA
At a glance
300 Longwood Ave, Boston, MA 02115-5724
NPPES record updated Feb 4, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
300 Longwood AveBoston, MA 02115-5724
Additional reported practice locations
1304 Fawcett Ave Ste 100Tacoma, WA 984021900
Phone: 2537614200
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2002
- CMS specialties
- Diagnostic Radiology · Interventional Radiology
Practice groups
- Children's Hospital Radiology Foundation, Inc.
- Medical Imaging Northwest - Good Samaritan Hospital Imaging Alliance
- Tra-Minw P S
Reported hospital affiliations
- Boston Children's Hospital Boston, MA
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Diagnostic Radiology · Interventional Radiology (CMS)
- Taxonomy code
- 2085P0229X
- Enumeration date
- Jan 30, 2007
- Record updated
- Feb 4, 2026
More registry details
- Provider type
- Individual · Type 1
- Other reported name
- THADDEUS WILSON HERLICZEK
- Reported credentials
- MD
Reported taxonomies and licenses
2085P0229X
License reported: MD500003109 DC
2085R0202X
License reported: 12603 RI
2085R0202X
License reported: MD70086097 WA
2085P0229X · Primary
License reported: 231919 MA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
300 Longwood AveBoston, MA 02115-5724
- Phone
- (617) 355-6000
Mailing address
300 LONGWOOD AVEBOSTON, MA 021155724
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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