Physician Profile
Harold R. Oster, MD practices internal medicine in Plymouth, MN. Medicare claims data shows Harold provided 44 services to 42 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Source: NPPES NPI Registry
2855 CAMPUS DR SUITE 400
Plymouth, MN 55441
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
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Endocrine, blood, and bone
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Most searched procedures
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44 services · 42 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
22 |
| Complete blood cell count (red cells, white blood cell, platelets), automated test | Lab test | 85027 |
11 |
| Blood test, basic group of blood chemicals (calcium, total) | Lab test | 80048 |
11 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Oster is an internist in Plymouth, MN. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Dr. Oster is listed at 2855 Campus Dr Suite 400, Plymouth, MN 55441. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (763) 577-7400. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Oster's National Provider Identifier is 1417915695. 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
Dr. Oster has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
According to Medicare billing data, Dr. Oster 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
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Oster. 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.