Sarah Callahan, M.D.
NPI 1831220557 · Diagnostic Radiology Physician · Louisville, KY
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sarah Callahan, M.D. is a Diagnostic Radiology Physician provider in Louisville, KY (NPI 1831220557).
Provider details
- NPI number
- 1831220557
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 41856 (KY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
1,988 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) |
|---|---|---|
| Screening Mammography77067 | 354 | $112 |
| Screening 3d Breast Mammography77063 | 332 | $49 |
| Screening 3d Breast Mammography77063 | 224 | $26 |
| Screening Mammography77067 | 224 | $33 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 174 | $46 |
| Limited Ultrasound Scan of 1 Breast76642 | 134 | $84 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$448 across 9 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)
- 1221 S BroadwayLexington, KY 40504-2701Phone: (859) 258-4000
- 5210 Eastwind RdLouisville, KY 40207-1628Phone: (502) 836-2602Fax: (502) 836-2602
- 315 E BroadwayLouisville, KY 40202Phone: (502) 629-7050
- 200 E Chestnut StLouisville, KY 40202-1831Phone: (502) 629-7201
Registry dates
- Enumerated
- 2007-03-07
- Last updated
- 2024-04-22
- Certified
- 2024-04-22
Frequently asked questions
- What is Sarah Callahan's NPI number?
- Sarah Callahan's National Provider Identifier (NPI) is 1831220557, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Callahan's specialty?
- Sarah Callahan is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Sarah Callahan located?
- Sarah Callahan's practice location on file with NPPES is 530 S Jackson St # C07, Louisville, KY 40202-1675.
- What is Sarah Callahan's phone number?
- The practice phone number listed in the NPPES registry for Sarah Callahan is (502) 852-5875.
- Does Sarah Callahan accept Medicare?
- Sarah Callahan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sarah Callahan's NPI active?
- Yes — Sarah Callahan's NPI (1831220557) is active in the NPPES registry as of the last update on 2024-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.