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Edit this profileJonathan H. Marsh, MD practices hematology/oncology in Palmer, MA. Jonathan is a 1986 graduate of State University of New York at Stony Brook, School of Medicine. Jonathan is also listed as specializing in hematology & oncology and medical oncology. According to Medicare claims data, Jonathan cared for 196 Medicare patients across 201 services. The services billed most often include telephone, internet, or electronic health record assessment and management with written report by consulting physician, at least 5 minutes. The provider's National Provider Identifier (NPI) is 1225031354.
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.
40 WRIGHT ST
Palmer, MA 01069
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.
Most searched conditions
Advanced Cancers
Blood & Lymph Disorders
Blood Cancers
Blood Disorders
Blood disorders
Bone & Soft Tissue Cancers
Digestive Cancers
Endocrine Cancers
Endocrine tumors
Gastrointestinal cancer
General oncology
Genetic Blood Disorders
Gynecologic cancer
Gynecologic Cancers
Head & Neck Cancers
Head and neck cancer
Neurologic Cancers
Oncologic emergencies
Ophthalmologic oncology
Skin cancer
Skin Cancers
Urologic Cancers
Most searched procedures
Biopsies & Diagnostics
Blood disorder care
Cancer Therapies
Cancer therapy
Cellular Therapies
Consultations
Diagnostic testing
Hematology Treatments
Imaging
Infusions
Interventional oncology
Supportive Cancer Care
Supportive cancer care
Surgical & Vascular Access
Testing & Genetics
Vascular access care
201 services · 196 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Telephone, internet, or electronic health record assessment and management with written report by consulting physician, at least 5 minutes | Office visit | 99451 |
201 | More 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. Marsh is a hematology/oncology in Palmer, MA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Dr. Marsh is listed at 40 Wright St, Palmer, MA 01069. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (413) 284-5400. Contact the office directly to confirm availability and scheduling.
NPI registry
Dr. Marsh's National Provider Identifier is 1225031354. 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. Marsh attended State University of New York at Stony Brook, School of Medicine, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
Dr. Marsh has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Marsh 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. Marsh. If this is you, claiming it is free.
Guide.md
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