Physician Profile
Based in Los Angeles, CA, Dennis J. Slamon, MD is listed in the NPI registry under hematology/oncology. Dennis graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1975. Dennis is also listed as specializing in hematology & oncology. Medicare claims data shows Dennis provided 242 services to 79 patients. The services billed most often include subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes, hospital discharge day management, 30 minutes or less, and initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes. NPI 1932129533 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
200 MEDICAL PLAZA #365,530,420,120
Los Angeles, CA 90095
Within Hematology and Oncology 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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242 services · 79 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
204 | More than most peers in Hematology/Oncology |
| Hospital discharge day management, 30 minutes or less | Office visit | 99238 |
25 | More often than most peers in Hematology/Oncology |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
13 | Less often than most peers in Hematology/Oncology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Slamon is a hematology/oncology in Los Angeles, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Dr. Slamon is listed at 200 Medical Plaza #365,530,420,120, Los Angeles, CA 90095. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (310) 825-5193. Contact the office directly to confirm availability and scheduling.
NPI registry
Dr. Slamon's National Provider Identifier is 1932129533. 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. Slamon attended University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb), graduating in 1975. This comes from the CMS National Downloadable File.
CMS public data
Dr. Slamon has 51 years experience. Calculated from a graduation year of 1975, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Slamon the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. 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. Slamon. If this is you, claiming it is free.
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