Ellie Kwak, M.D.
NPI 1912262551 · Diagnostic Radiology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ellie Kwak, M.D. is a Diagnostic Radiology Physician provider in Boston, MA (NPI 1912262551).
Provider details
- NPI number
- 1912262551
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 269509 (MA)
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 tenure28% of score
13 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
2,500 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 | 674 | $109 |
| Screening 3d Breast Mammography77063 | 641 | $45 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 387 | $43 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 200 | $51 |
| Diagnostic Mammography of Both Breasts77066 | 177 | $173 |
| Diagnostic Mammography of 1 Breast77065 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-07-10
- Last updated
- 2022-02-04
- Certified
- 2022-02-04
Frequently asked questions
- What is Ellie Kwak's NPI number?
- Ellie Kwak's National Provider Identifier (NPI) is 1912262551, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellie Kwak's specialty?
- Ellie Kwak is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Ellie Kwak located?
- Ellie Kwak's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6110.
- What is Ellie Kwak's phone number?
- The practice phone number listed in the NPPES registry for Ellie Kwak is (617) 732-6757.
- Does Ellie Kwak accept Medicare?
- Ellie Kwak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ellie Kwak's NPI active?
- Yes — Ellie Kwak's NPI (1912262551) is active in the NPPES registry as of the last update on 2022-02-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.