Physician Profile
Michael Willen, M.D. practices hematology/oncology in Clifton Park, NY. Michael is a 1976 graduate of New York Medical College. Michael is also listed as specializing in hematology & oncology. Medicare claims data shows Michael provided 89 services to 76 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
3 CROSSING BLVD SUITE 1
Clifton Park, NY 12065
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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89 services · 76 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
47 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
30 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
12 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Michael Willen is a hematology/oncology in Clifton Park, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
Michael Willen is listed at 3 Crossing Blvd Suite 1, Clifton Park, NY 12065. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (518) 831-4434. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Michael Willen's National Provider Identifier is 1912994849. 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
Michael Willen attended New York Medical College, graduating in 1976. This comes from the CMS National Downloadable File.
CMS public data
Michael Willen has 50 years experience. Calculated from a graduation year of 1976, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Michael Willen 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 Michael Willen. 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.