John Mcallister, M.D.
NPI 1548575921 · Ophthalmology Physician · Falls Church, VA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Mcallister, M.D. is a Ophthalmology Physician provider in Falls Church, VA (NPI 1548575921).
Provider details
- NPI number
- 1548575921
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 0101256262 (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
15 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
1,924 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 Complete Exam of Visual System92014 | 654 | $142 |
| Established Patient Problem Focused Exam of Visual System92012 | 189 | $101 |
| Exam of Visual Field With Extended Testing92083 | 143 | $73 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 137 | $47 |
| Imaging of Optic Nerve92133 | 134 | $41 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 124 | $603 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 302 | 86 |
| Timolol Maleate | 134 | 49 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 67 | 30 |
| Brimonidine Tartrate | 37 | 11 |
| Prednisolone Acetate | 24 | 23 |
| Dexamethasone Sodium Phosphate | 23 | 17 |
| Dorzolamide Hcl | 23 | 12 |
| Ofloxacin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$270 across 3 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
- 2010-08-10
- Last updated
- 2015-02-20
Frequently asked questions
- What is John Mcallister's NPI number?
- John Mcallister's National Provider Identifier (NPI) is 1548575921, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Mcallister's specialty?
- John Mcallister is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is John Mcallister located?
- John Mcallister's practice location on file with NPPES is 6231 Leesburg Pike, Falls Church, VA 22044-2102.
- What is John Mcallister's phone number?
- The practice phone number listed in the NPPES registry for John Mcallister is (703) 534-3900.
- Does John Mcallister accept Medicare?
- John Mcallister is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Mcallister's NPI active?
- Yes — John Mcallister's NPI (1548575921) is active in the NPPES registry as of the last update on 2015-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.