Matthew Groenwald, M.D.
NPI 1124461645 · Diagnostic Radiology Physician · Charlotte, NC
Enrolled with Medicare as Practitioner - Interventional Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Groenwald, M.D. is a Diagnostic Radiology Physician provider in Charlotte, NC (NPI 1124461645).
Provider details
- NPI number
- 1124461645
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- U4998 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,061 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 339 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 159 | $38 |
| Ct Scan of Chest Without Contrast71250 | 116 | $51 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 116 | $86 |
| X-Ray of Chest, 2 Views71046 | 108 | $10 |
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152 | 79 | $13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$149 across 6 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (4)
- 5 Perryridge RdGreenwich, CT 06830-4608Phone: (203) 863-3911
- 4201 W Medical Center DrMchenry, IL 60050-8409Phone: (815) 334-5566Fax: (815) 759-4008
- 2400 N Rockton AveRockford, IL 61103-3655Phone: (815) 971-5000
- 700 E Marshall AveLongview, TX 75601-5580Phone: (903) 315-1488
Registry dates
- Enumerated
- 2013-04-15
- Last updated
- 2025-01-20
- Certified
- 2025-01-20
Frequently asked questions
- What is Matthew Groenwald's NPI number?
- Matthew Groenwald's National Provider Identifier (NPI) is 1124461645, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Groenwald's specialty?
- Matthew Groenwald is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Groenwald located?
- Matthew Groenwald's practice location on file with NPPES is 3623 Latrobe Dr Ste 216, Charlotte, NC 28211-2117.
- What is Matthew Groenwald's phone number?
- The practice phone number listed in the NPPES registry for Matthew Groenwald is (704) 332-1291.
- Does Matthew Groenwald accept Medicare?
- Matthew Groenwald is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Groenwald's NPI active?
- Yes — Matthew Groenwald's NPI (1124461645) is active in the NPPES registry as of the last update on 2025-01-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.