Marit Duffy, M.D.
NPI 1598927063 · Diagnostic Radiology Physician · Annapolis, MD
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marit Duffy, M.D. is a Diagnostic Radiology Physician provider in Annapolis, MD (NPI 1598927063).
Provider details
- NPI number
- 1598927063
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 0101247096 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
7,539 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Screening Mammography77067 | 1,501 | $119 |
| Screening 3d Breast Mammography77063 | 1,381 | $47 |
| X-Ray of Chest, 1 View71045 | 870 | $9 |
| Ct Scan Head Or Brain Without Contrast70450 | 266 | $40 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 253 | $50 |
| X-Ray of Chest, 2 Views71046 | 225 | $11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-26
- Last updated
- 2020-06-25
- Certified
- 2020-06-25
Frequently asked questions
- What is Marit Duffy's NPI number?
- Marit Duffy's National Provider Identifier (NPI) is 1598927063, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marit Duffy's specialty?
- Marit Duffy is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Marit Duffy located?
- Marit Duffy's practice location on file with NPPES is 2002 Medical Pkwy Ste 235, Annapolis, MD 21401-3260.
- What is Marit Duffy's phone number?
- The practice phone number listed in the NPPES registry for Marit Duffy is (410) 266-2770.
- Does Marit Duffy accept Medicare?
- Marit Duffy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marit Duffy's NPI active?
- Yes — Marit Duffy's NPI (1598927063) is active in the NPPES registry as of the last update on 2020-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.