Leo Leer, MD
NPI 1316984842 · Specialist · Eureka, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leo Leer, MD is a Specialist provider in Eureka, CA (NPI 1316984842).
Provider details
- NPI number
- 1316984842
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G55144 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
7,630 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 1,745 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 1,051 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 814 | $8 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 653 | $13 |
| Hemoglobin A1c Level83036 | 481 | $10 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 476 | $16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 85 | 35 |
| Losartan Potassium | 74 | 32 |
| Levothyroxine Sodium | 41 | — |
| Amlodipine Besylate | 37 | 14 |
| Metoprolol Succinate | 32 | 12 |
| Omeprazole | 28 | — |
| Hydrochlorothiazide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-01
- Last updated
- 2021-11-05
- Certified
- 2021-11-05
Frequently asked questions
- What is Leo Leer's NPI number?
- Leo Leer's National Provider Identifier (NPI) is 1316984842, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leo Leer's specialty?
- Leo Leer is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Leo Leer located?
- Leo Leer's practice location on file with NPPES is 2675 Harris St, Eureka, CA 95503-4806.
- What is Leo Leer's phone number?
- The practice phone number listed in the NPPES registry for Leo Leer is (707) 443-8335.
- Does Leo Leer accept Medicare?
- Leo Leer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leo Leer's NPI active?
- Yes — Leo Leer's NPI (1316984842) is active in the NPPES registry as of the last update on 2021-11-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.