Louisa Johnson, O.D.
NPI 1649584053 · Optometrist · Levittown, PA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Louisa Johnson, O.D. is a Optometrist provider in Levittown, PA (NPI 1649584053).
Provider details
- NPI number
- 1649584053
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Female
- Sole proprietor
- No
- License
- OEG002343 (PA)
Specialties & taxonomies
Eye and Vision Services Providers
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
66 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 Problem Focused Exam of Visual System92012 | 66 | $91 |
Typical Medicare-allowed amounts for these services range $91–$91 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 1,067 | 191 |
| Brimonidine Tartrate | 168 | 41 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 164 | 41 |
| Timolol Maleate | 116 | 22 |
| Cyclosporinebrand: Restasis | 75 | 13 |
| Brinzolamide/Brimonidine Tartbrand: Simbrinza | 62 | 11 |
| Azelastine Hcl | 52 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$81 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
- 2010-07-28
- Last updated
- 2010-07-28
Frequently asked questions
- What is Louisa Johnson's NPI number?
- Louisa Johnson's National Provider Identifier (NPI) is 1649584053, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louisa Johnson's specialty?
- Louisa Johnson is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Louisa Johnson located?
- Louisa Johnson's practice location on file with NPPES is 1568 Woodbourne Rd, Levittown, PA 19057-1508.
- What is Louisa Johnson's phone number?
- The practice phone number listed in the NPPES registry for Louisa Johnson is (215) 943-7800.
- Does Louisa Johnson accept Medicare?
- Louisa Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Louisa Johnson's NPI active?
- Yes — Louisa Johnson's NPI (1649584053) is active in the NPPES registry as of the last update on 2010-07-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.