Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. LINDA DIANE GROSSHEIM MD
NPI 1548211360
Radiology - Radiation Oncology in Spokane, WA

Active since May 15, 2006PECOS EnrolledAccepts Medicare Assignment
910 W 5TH AVE STE 102B, SPOKANE, WA 99204(509) 755-5783(509) 459-1522 Get Directions Write a Review

NPPES record last updated: July 1, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Mar 9, 2026, Oct 24, 2023, Aug 25, 2023 (3 updates tracked since 2023).

About Dr. Linda Diane Grossheim Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. LINDA DIANE GROSSHEIM MD (NPI 1548211360) is an individual radiation oncology provider in Spokane, Washington, licensed in Michigan (4301091129) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS, is affiliated with Deaconess Medical Center, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1548211360
Entity TypeIndividualFemale
Primary Taxonomy2085R0001X
Provider Legal NameDR. LINDA DIANE GROSSHEIMCredential: MD
Location Address910 W 5TH AVE STE 102BSpokane, WA 99204-2948
Mailing Address1641 E Polston Ave Ste 102Post Falls, ID 83854-7852 · (208) 755-2804 · Fax (208) 765-0277
Fax(509) 459-1522
Sole ProprietorNo
Medical School CMSUniversity Of Michigan Medical SchoolGraduated 1993
Enumeration DateMay 15, 2006
Last NPPES UpdateJuly 1, 20263 updates tracked since enumeration
NPPES CertifiedJuly 1, 2026
NPI 1548211360 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0001X
Licenses Licensed in MI · 4301091129 Licensed in ID · M-14269 Licensed in AZ · 64928 Licensed in HI · MD-22376 Licensed in WA · MD60855711 Licensed in WI · 43521-020 Licensed in GA · 91727 Licensed in MO · 2025050456 Licensed in CA · C172502
Definition

A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

910 W 5TH AVE STE 102B, Spokane, WA 99204

Other Names 1

Former Name (1)Linda Palm

Secondary Practice Locations 3

Location 11641 E Polston Ave Ste 102Post Falls, ID 83854-7852 · Phone (208) 755-2804 · Fax (208) 765-0277
Location 2844 N 5th AveSequim, WA 98382-3045 · Phone (360) 683-9895 · Fax (360) 582-5614
Location 31100 N Kentucky AveWest Plains, MO 65775-2029 · Phone (417) 256-9111 ext. 69111

Other Identifiers 4

Medicaid1548211360MI
Medicaid1548211360ID
Medicaid2103992WA
Medicaid34597700WI

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Linda Diane Grossheim Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2062478738
PECOS Enrollment IDI20180731002528, I20180731002796
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 15

Services this provider delivered to Medicare fee-for-service patients, from the 2024 & 2026 CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Ct guidance for insertion of radiation therapy fields 77014
CT guidance for insertion of radiation therapy fields involves using a CT scan to accurately map the area of your body where radiation will be applied. This ensures the radiation targets only the necessary area, minimizing impact to healthy tissues.
251 services47 patients
Calculation of radiation therapy dose 77300
Radiation therapy dose calculation is a process to determine the exact amount of radiation needed to treat a specific area in the body. This calculation helps ensure the treatment is effective while minimizing harm to healthy tissues. It's a key part of planning your radiation therapy.
117 services34 patients
Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy G6002
Stereoscopic x-ray guidance is a technique used in radiation therapy. It involves taking multiple X-ray images from different angles to create a 3D picture of the area to be treated. This helps accurately pinpoint the exact location for radiation delivery, ensuring the therapy is as effective as possible.
111 services25 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
91 services77 patients
Design and construction of complex radiation treatment device 77334
The design and construction of a complex radiation treatment device is a process where a specialized instrument is created. This device targets harmful cells with high-energy rays to destroy or damage them, while minimizing impact on healthy cells. This aids in treating conditions like cancer.
87 services42 patients
Radiation treatment management, 5 treatment sessions 77427
Radiation treatment management involves a series of 5 sessions where targeted radiation is used to destroy or shrink cancer cells in your body. Each session is carefully planned to maximize effectiveness while minimizing harm to healthy tissues. You may experience side effects which will be closely monitored and managed for your comfort.
71 services45 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Deaconess Medical Center

Acute Care Hospitals · Spokane, WA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500044
LocationW 800 Fifth AvenueSpokane, WA 99210 · Spokane County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99204 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$172.80 typical visit price
range $57.27 – $172.80
Typical copayment $43.20 (range $14.31 – $43.20)
Most-billed visit code 99205
Established Patient
$71.29 typical visit price
range $18.56 – $141.11
Typical copayment $17.82 (range $4.64 – $35.27)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Radiology (Radiation Oncology)
910 W 5TH AVE STE 102B
SPOKANE, WA 99204
Radiology (Radiation Oncology)
910 W 5TH AVE STE 102B
SPOKANE, WA 99204

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1548211360, enumerated as an "individual" on May 15, 2006.

The provider is located at 910 W 5TH AVE STE 102B SPOKANE, WA 99204 and the phone number is (509) 755-5783.

Radiology with taxonomy code 2085R0001X and a focus in Radiation Oncology.

The provider might be accepting Accepts: Blue Cross Blue Shield of Arizona, Premera Blue. Please consult your insurance carrier or call the provider to verify.

Linda Grossheim is affiliated with: DEACONESS MEDICAL CENTER.