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Edit this profileIsla MARIANN MCKERROW Johnson, MD is a healthcare provider in Spokane Valley, WA specializing in hematology/oncology. Isla trained at Oregon Health Sciences University School of Medicine, graduating in 2020. Isla is also listed as specializing in hematology & oncology. Medicare claims data shows Isla provided 130 services to 96 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more, and new patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more. This provider record is associated with NPI 1417585571.
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.
1204 N VERCLER RD
Spokane Valley, WA 99216
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
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Most searched procedures
Biopsies & Diagnostics
Blood disorder care
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130 services · 96 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
58 | Less often than most peers in Hematology/Oncology |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
49 | Less often than most peers in Hematology/Oncology |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
23 | As often as other peers in Hematology/Oncology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Johnson is a hematology/oncology in Spokane Valley, WA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Dr. Johnson is listed at 1204 N Vercler Rd, Spokane Valley, WA 99216. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (503) 504-3402. Contact the office directly to confirm availability and scheduling.
NPI registry
Dr. Johnson's National Provider Identifier is 1417585571. 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. Johnson attended Oregon Health Sciences University School of Medicine, graduating in 2020. This comes from the CMS National Downloadable File.
CMS public data
Dr. Johnson has 6 years experience. Calculated from a graduation year of 2020, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Johnson 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. Johnson. If this is you, claiming it is free.
Guide.md
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