Thomas Johnson, MD, PHD
NPI 1588009765 · Ophthalmology Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Johnson, MD, PHD is a Ophthalmology Physician provider in Baltimore, MD (NPI 1588009765).
Provider details
- NPI number
- 1588009765
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- D84976 (MD)
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
13 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
2,186 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) |
|---|---|---|
| Exam of Visual Field With Extended Testing92083 | 667 | $66 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 647 | $132 |
| Imaging of Optic Nerve92133 | 299 | $35 |
| Established Patient Complete Exam of Visual System92014 | 178 | $130 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 76 | $47 |
| Exam of the Internal Drainage System of Eye92020 | 67 | $28 |
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 |
|---|---|---|
| Latanoprost | 547 | 174 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 398 | 136 |
| Brimonidine Tartrate | 230 | 72 |
| Prednisolone Acetate | 100 | 62 |
| Timolol Maleate | 94 | 28 |
| Netarsudil Mesylatebrand: Rhopressa | 73 | 25 |
| Dorzolamide Hcl | 55 | 24 |
| Travoprost |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,741 across 2 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
- 2013-05-01
- Last updated
- 2019-01-18
Frequently asked questions
- What is Thomas Johnson's NPI number?
- Thomas Johnson's National Provider Identifier (NPI) is 1588009765, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Johnson's specialty?
- Thomas Johnson is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Johnson located?
- Thomas Johnson's practice location on file with NPPES is Wilmer Eye Institute, Johns Hopkins Hospital, Baltimore, MD 21287-0001.
- What is Thomas Johnson's phone number?
- The practice phone number listed in the NPPES registry for Thomas Johnson is (410) 955-5650.
- Does Thomas Johnson accept Medicare?
- Thomas Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Johnson's NPI active?
- Yes — Thomas Johnson's NPI (1588009765) is active in the NPPES registry as of the last update on 2019-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.