Michael Johnson, M.D.
NPI 1548203185 · Ophthalmology Physician · Charleston, SC
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Johnson, M.D. is a Ophthalmology Physician provider in Charleston, SC (NPI 1548203185).
Provider details
- NPI number
- 1548203185
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 83627 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
9,010 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) |
|---|---|---|
| Imaging of Retina92134 | 2,522 | $39 |
| Injection of Drug Into Eye67028 | 2,013 | $123 |
| Principal Care Management Services for a Single High-Risk Disease, First 30 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99426 | 1,368 | $62 |
| Photography of the Retina92250 | 829 | $36 |
| Established Patient Complete Exam of Visual System92014 | 770 | $122 |
| Established Patient Problem Focused Exam of Visual System92012 | 618 | $87 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 354 | 116 |
| Brimonidine Tartrate | 270 | 91 |
| Prednisolone Acetate | 129 | 103 |
| Timolol Maleate | 84 | 26 |
| Ofloxacin | 74 | 67 |
| Dorzolamide Hcl | 54 | 13 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 45 | 13 |
| Atropine Sulfate | 33 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$268 across 7 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
- 2006-06-13
- Last updated
- 2020-05-04
- Certified
- 2020-05-04
Frequently asked questions
- What is Michael Johnson's NPI number?
- Michael Johnson's National Provider Identifier (NPI) is 1548203185, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Johnson's specialty?
- Michael Johnson is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Johnson located?
- Michael Johnson's practice location on file with NPPES is 3531 Mary Ader Ave Ste D, Charleston, SC 29414-5896.
- What is Michael Johnson's phone number?
- The practice phone number listed in the NPPES registry for Michael Johnson is (843) 763-4466.
- Does Michael Johnson accept Medicare?
- Michael Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Johnson's NPI active?
- Yes — Michael Johnson's NPI (1548203185) is active in the NPPES registry as of the last update on 2020-05-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.