Physician Profile
Leo R. Leer, MD
Unclaimed ProfileAbout Dr. Leer
Leo R. Leer, MD is a specialist practicing in Eureka, CA. Leo trained at University of Southern California Keck School of Medicine, graduating in 1984. According to Medicare claims data, Leo cared for 6,780 Medicare patients across 7,320 services. The services billed most often include insertion of needle into vein for collection of blood sample, blood test, comprehensive group of blood chemicals, and complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (707) 443-8335
- Email not available
Practice Locations
2675 HARRIS ST
Eureka, CA 95503
Procedures Most Often Billed to Medicare
7,320 services · 6,780 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
1,745 | More than most peers in Specialist |
| Blood test, comprehensive group of blood chemicals | Lab test | 80053 |
1,051 | More often than most peers in Specialist |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
814 | More often than most peers in Specialist |
| Blood test, lipids (cholesterol and triglycerides) | Lab test | 80061 |
653 | More often than most peers in Specialist |
| Hemoglobin a1c level | Lab test | 83036 |
481 | More often than most peers in Specialist |
| Blood test, thyroid stimulating hormone (tsh) | Lab test | 84443 |
476 | More often than most peers in Specialist |
| Vitamin d-3 level | Lab test | 82306 |
267 | More often than most peers in Specialist |
| Blood test, basic group of blood chemicals (calcium, total) | Lab test | 80048 |
215 | More often than most peers in Specialist |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
183 | As often as other peers in Specialist |
| Manual urinalysis test with examination using microscope, automated | Lab test | 81001 |
163 | As often as other peers in Specialist |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other specialists in Eureka 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Southern California Keck School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1984 at University of Southern California Keck School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Leer specialize in?
Dr. Leer is a specialist in Eureka, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dr. Leer located?
Dr. Leer is listed at 2675 Harris St, Eureka, CA 95503. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Leer's phone number?
The number on file is (707) 443-8335. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Leer's NPI number?
Dr. Leer's National Provider Identifier is 1316984842. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Leer go to medical school?
Dr. Leer attended University of Southern California Keck School of Medicine, graduating in 1984. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Leer been practicing?
Dr. Leer has 42 years experience. Calculated from a graduation year of 1984, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Leer do most often?
According to Medicare billing data, Dr. Leer performs procedures including insertion of needle into vein for collection of blood sample, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Leer confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Leer. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.