Marianne Greenbaum, MD
NPI 1558440453 · Diagnostic Radiology Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marianne Greenbaum, MD is a Diagnostic Radiology Physician provider in Seattle, WA (NPI 1558440453).
Provider details
- NPI number
- 1558440453
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD00037029 (WA)
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
19 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
280 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) |
|---|---|---|
| Limited Ultrasound Scan of Abdomen76705 | 71 | $29 |
| Complete Ultrasound Scan Behind Abdominal Cavity76770 | 49 | $37 |
| Ultrasound Scan of Head and Neck Soft Tissue76536 | 39 | $28 |
| Ultrasound Scan of Head and Neck Soft Tissue76536 | 23 | $67 |
| Complete Ultrasound Scan of Abdomen76700 | 22 | $40 |
| Ultrasound Scan of Uterus, Ovaries, Tubes, Cervix and Pelvic Area Through Vagina76830 | 22 | $34 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-03
- Last updated
- 2021-09-29
- Certified
- 2021-09-29
Frequently asked questions
- What is Marianne Greenbaum's NPI number?
- Marianne Greenbaum's National Provider Identifier (NPI) is 1558440453, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marianne Greenbaum's specialty?
- Marianne Greenbaum is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Marianne Greenbaum located?
- Marianne Greenbaum's practice location on file with NPPES is 1229 Madison Street, Seattle, WA 98104-3587.
- What is Marianne Greenbaum's phone number?
- The practice phone number listed in the NPPES registry for Marianne Greenbaum is (206) 386-6300.
- Does Marianne Greenbaum accept Medicare?
- Marianne Greenbaum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marianne Greenbaum's NPI active?
- Yes — Marianne Greenbaum's NPI (1558440453) is active in the NPPES registry as of the last update on 2021-09-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.