Michael Callahan, MD
NPI 1902892151 · Ophthalmology Physician · Birmingham, AL
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Callahan, MD is a Ophthalmology Physician provider in Birmingham, AL (NPI 1902892151).
Provider details
- NPI number
- 1902892151
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 00006083 (AL)
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
1,261 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 | 468 | $115 |
| Photography of Content of Eyes92285 | 130 | $18 |
| Exam of Visual Field With Intermediate Testing92082 | 94 | $42 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 85 | $149 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 68 | $42 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 66 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 375 | 270 |
| Prednisolone Acetate | 236 | 145 |
| Cephalexin | 233 | 218 |
| Ketorolac Tromethamine | 191 | 131 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 183 | 171 |
| Ofloxacin | 176 | 125 |
| Latanoprost | 146 | 43 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$196 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
Registry dates
- Enumerated
- 2005-09-23
- Last updated
- 2020-08-19
- Certified
- 2020-08-19
Frequently asked questions
- What is Michael Callahan's NPI number?
- Michael Callahan's National Provider Identifier (NPI) is 1902892151, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Callahan's specialty?
- Michael Callahan is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Callahan located?
- Michael Callahan's practice location on file with NPPES is 700 18th St S Ste 410, Birmingham, AL 35233-3805.
- What is Michael Callahan's phone number?
- The practice phone number listed in the NPPES registry for Michael Callahan is (205) 325-8620.
- Does Michael Callahan accept Medicare?
- Michael Callahan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Callahan's NPI active?
- Yes — Michael Callahan's NPI (1902892151) is active in the NPPES registry as of the last update on 2020-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.