Lenard Hammer, M.D.
NPI 1306874383 · Ophthalmology Physician · Columbia, MD
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lenard Hammer, M.D. is a Ophthalmology Physician provider in Columbia, MD (NPI 1306874383).
Provider details
- NPI number
- 1306874383
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D33667 (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
19 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
6,058 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 | 2,647 | $127 |
| Imaging of Retina92134 | 1,346 | $41 |
| Imaging of Optic Nerve92133 | 736 | $35 |
| Exam of the Internal Drainage System of Eye92020 | 559 | $27 |
| Exam of Visual Field With Extended Testing92083 | 455 | $64 |
| Ultrasound Scan of Cornea to Determine Thickness76514 | 121 | $11 |
| Established Patient Problem Focused Exam of Visual System92012 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 639 | 218 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 358 | 103 |
| Bimatoprostbrand: Lumigan | 120 | 42 |
| Timolol Maleate | 103 | 42 |
| Latanoprostene Bunodbrand: Vyzulta | 69 | 24 |
| Travoprost | 48 | 16 |
| Brimonidine Tartrate/Timololbrand: Combigan | 44 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$234 across 11 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
- 2006-06-29
- Last updated
- 2007-07-09
Frequently asked questions
- What is Lenard Hammer's NPI number?
- Lenard Hammer's National Provider Identifier (NPI) is 1306874383, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lenard Hammer's specialty?
- Lenard Hammer is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Lenard Hammer located?
- Lenard Hammer's practice location on file with NPPES is 8860 Columbia 100 Parkway, Columbia, MD 21045.
- What is Lenard Hammer's phone number?
- The practice phone number listed in the NPPES registry for Lenard Hammer is (410) 997-9900.
- Does Lenard Hammer accept Medicare?
- Lenard Hammer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lenard Hammer's NPI active?
- Yes — Lenard Hammer's NPI (1306874383) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.