Claiborne Callahan, M.D.
NPI 1033117981 · Ophthalmology Physician · Leesburg, VA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Claiborne Callahan, M.D. is a Ophthalmology Physician provider in Leesburg, VA (NPI 1033117981).
Provider details
- NPI number
- 1033117981
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 0101250311 (VA)
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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,170 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 752 | $119 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 463 | $84 |
| Imaging of Optic Nerve92133 | 240 | $34 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 141 | $34 |
| Imaging of Retina92134 | 116 | $37 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 112 | $495 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Timolol Maleate | 179 | 55 |
| Bimatoprostbrand: Lumigan | 83 | 31 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 77 | 23 |
| Latanoprost | 67 | 23 |
| Travoprost | 66 | 23 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 48 | 42 |
| Cyclosporine | 42 | 25 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$353 across 12 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
Registry dates
- Enumerated
- 2005-07-13
- Last updated
- 2021-01-17
- Certified
- 2021-01-17
Frequently asked questions
- What is Claiborne Callahan's NPI number?
- Claiborne Callahan's National Provider Identifier (NPI) is 1033117981, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Claiborne Callahan's specialty?
- Claiborne Callahan is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Claiborne Callahan located?
- Claiborne Callahan's practice location on file with NPPES is 20 Davis Ave Sw, Leesburg, VA 20175-3824.
- What is Claiborne Callahan's phone number?
- The practice phone number listed in the NPPES registry for Claiborne Callahan is (703) 777-1244.
- Does Claiborne Callahan accept Medicare?
- Claiborne Callahan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Claiborne Callahan's NPI active?
- Yes — Claiborne Callahan's NPI (1033117981) is active in the NPPES registry as of the last update on 2021-01-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.