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

Q: What is Linda Grossheim's NPI number?

The NPI number for Linda Grossheim is 1548211360. It was assigned to this individual provider in the NPPES registry on May 15, 2006. The provider is also known as Linda Palm.

Q: What is Linda Grossheim's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Q: When was this NPI record last updated?

The NPPES record for Linda Grossheim was last updated on July 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

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: October 18, 2026.

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

On this page

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 Ozarks Healthcare, 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

Phone(509) 755-5783

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

Open in Google Maps ↗

Other Names 1

Former Name (1)Linda Palm

Secondary Practice Locations 3

Location 1844 N 5th AveSequim, WA 98382-3045 · Phone (360) 683-9895 · Fax (360) 582-5614

Location 21641 E Polston Ave Ste 102Post Falls, ID 83854-7852 · Phone (208) 755-2804 · Fax (208) 765-0277

Location 31100 N Kentucky AveWest Plains, MO 65775-2029 · Phone (417) 256-9111 ext. 69111

Other Identifiers 4

Medicaid1548211360MI

Medicaid1548211360ID

Medicaid2103992WA

Medicaid34597700WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

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, I20260305002778

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.

Medicare Billing Reassignments

Medicare enrollment records show Linda Grossheim reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Multicare Health System

0.9 mi

Internal Medicine

400 E 5TH AVE
Spokane, WA 99202

Reassigned Medicare billing, Washington enrollment
4,383 clinicians in this Medicare group

NPI 1730687161 (509) 838-2531

Medical Oncology Associates, P.S.

4.3 mi

Specialist

6001 N MAYFAIR ST
Spokane, WA 99208

Reassigned Medicare billing, Washington enrollment
Medicare enrollment name: Medical Oncology Associates Ps
19 clinicians in this Medicare group

NPI 1215980198 (509) 462-2273

Beacon Cancer Care PLLC

29 mi

Multi-Specialty

3815 N SCHREIBER WAY STE 101
Coeur D Alene, ID 83815

Reassigned Medicare billing, Idaho enrollment
20 clinicians in this Medicare group

NPI 1407335367 (208) 755-2804

Peacehealth

232 mi

Critical Access

2000 HOSPITAL DR
Sedro Woolley, WA 98284

Reassigned Medicare billing, Washington enrollment
Also billed through NPI 1548698806 (Washington)
76 clinicians in this Medicare group

NPI 1144664954 (360) 788-7768

Ozarks Medical Center

1,468 mi

Rural Health

500 E 19TH ST
Mountain Grove, MO 65711

Reassigned Medicare billing, Missouri enrollment
338 clinicians in this Medicare group

NPI 1376679423 (417) 926-6563

West Michigan Cancer Center

1,592 mi

Medical Oncology

200 N PARK ST
Kalamazoo, MI 49007

Reassigned Medicare billing, Michigan enrollment
35 clinicians in this Medicare group

NPI 1447261730 (269) 382-2500

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 15

Services this provider delivered to Medicare fee-for-service patients, from the 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

Complex radiation therapy planning 77263

Complex radiation therapy planning is a process to determine the most effective way to deliver radiation to a specific area in your body. It involves detailed imaging to map your body's structure, allowing for precise targeting of cancer cells while sparing healthy tissue.

33 services33 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

31 services31 patients

Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved 77290

This procedure involves collecting necessary data to plan the best radiation treatment. It may cover 3 or more areas or any area requiring special attention. Data collection includes imaging scans and tests to understand the disease's extent and to tailor a precise, effective treatment plan.

22 services21 patients

Obtaining data needed to develop the optimal radiation treatment, 1 treatment area 77280

This procedure involves gathering essential information to create the best radiation treatment plan for a specific area. It includes scanning the treatment area and using this data to calculate the precise dose of radiation needed to target the disease effectively, while sparing healthy tissue.

19 services19 patients

High precision radiation therapy planning 77301

High precision radiation therapy planning involves detailed mapping of your body to target cancer cells accurately. Advanced imaging techniques help identify the exact location of the tumor, minimizing harm to healthy tissues. This personalized approach enhances effectiveness and reduces side effects.

19 services19 patients

Design and construction of radiation treatment device for high precision radiation therapy 77338

A radiation treatment device is custom-made for each patient to target cancer cells with high precision. It's designed to focus radiation on the tumor, sparing healthy tissue. This process ensures effective therapy while minimizing side effects.

19 services19 patients

Design and construction of intermediate radiation treatment device 77333

The design and construction of an intermediate radiation treatment device is a process where a custom device is made to help deliver radiation therapy. This device is designed to focus radiation beams precisely on the area needing treatment, minimizing exposure to surrounding healthy tissues.

17 services15 patients

3d radiation therapy planning 77295

3D radiation therapy planning is a procedure that uses computer imaging to map out the area needing treatment. This ensures the radiation targets the disease precisely, while minimizing exposure to surrounding healthy tissues. It's a key step in preparing for effective radiation therapy.

12 services12 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Ozarks Healthcare

Acute Care Hospitals · West Plains, MO

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260078

Location1100 Kentucky AveWest Plains, MO 65775 · Howell County

Emergency services Birthing friendly

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.

SASHA NICOLE SWENSEN

Radiology (Radiation Oncology)

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

Spokane County (509) 755-5783

DR. ZACHARY DAVID GUSS MD

Radiology (Radiation Oncology)

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

Spokane County (509) 755-5783

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Linda Grossheim's NPI number?

The NPI number for Linda Grossheim is 1548211360. It was assigned to this individual provider in the NPPES registry on May 15, 2006. The provider is also known as Linda Palm.

Where is Linda Grossheim located?

Linda Grossheim practices at 910 W 5th Ave Ste 102B, Spokane, WA 99204. The listed phone number is (509) 755-5783.

What is Linda Grossheim's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is Linda Grossheim enrolled in Medicare?

Yes. Linda Grossheim is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Linda Grossheim's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Linda Grossheim reassigns Medicare benefits to 6 organizations: Multicare Health System (Spokane, WA), Medical Oncology Associates, P.S. (Spokane, WA), Beacon Cancer Care PLLC (Coeur D Alene, ID), Peacehealth (Sedro Woolley, WA), Ozarks Medical Center (Mountain Grove, MO) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Linda Grossheim's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Linda Grossheim accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 8 other insurers list Linda Grossheim as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Linda Grossheim affiliated with any hospitals?

According to CMS data, Linda Grossheim is affiliated with Ozarks Healthcare and Deaconess Medical Center.

When was this NPI record last updated?

The NPPES record for Linda Grossheim was last updated on July 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.