Doctor profile · Federal record

Dr. Linda Grossheim, MD

Radiation Oncology Physician (CMS: Radiation Oncology) · Radiation Oncology Physician · Radiation Oncology Physician · Radiation Oncology Physician · Radiation Oncology Physician · Radiation Oncology Physician · Radiation Oncology Physician · Radiation Oncology Physician · Radiation Oncology Physician · Spokane, WA

  • NPI 1548211360
  • Accepts Medicare
  • 33 yrs in practice
  • Licensed in 9 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 4 locations .

NPPES Updated May 11, 2026
Primary practice
910 W 5Th Ave Ste 102B
Spokane, WA 992042948
(509) 755-5783
fax (509) 459-1522
Additional location
1641 E Polston Ave Ste 102
Post Falls, ID 838547852
(208) 755-2804
fax (208) 765-0277
Additional location
844 N 5Th Ave
Sequim, WA 983823045
(360) 683-9895
fax (360) 582-5614
Show 1 more location
Additional location
1100 N Kentucky Ave
West Plains, MO 657752029
(417) 256-9111
Mailing address
1641 E Polston Ave Ste 102
Post Falls, ID 838547852

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
March 9, 2026
Year of graduation
1993 — 33 yrs since
Specialty taxonomy
2085R0001X — NUCC code
State licenses (9)
Michigan #4301091129 · Idaho #M-14269 · Arizona #64928 · Hawaii #MD-22376 · Washington #MD60855711 · Wisconsin #43521-020 · Georgia #91727 · Missouri #2025050456 · California #C172502
Medicaid (4)
MI #1548211360 · ID #1548211360 · WA #2103992 · WI #34597700

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1548211360. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
16
Distinct HCPCS
1
Medicare allowed
$1,534
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 16 16 $96

In context: peer comparison

Among 3 peers in Spokane Radiation Oncology Physician, average services per provider: 113. This provider delivers 0.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$83
Transactions
3
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Daiichi Sankyo INC. 2 $58.81
Servier Pharmaceuticals LLC 1 $24.57

By nature of payment

Food and Beverage
$83

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Linda Grossheim's medical specialty?
Dr. Linda Grossheim practices Radiation Oncology Physician in Spokane, WA.
Where does Dr. Linda Grossheim practice?
Dr. Linda Grossheim practices at 910 W 5Th Ave Ste 102B, Spokane, WA 992042948. Office phone: 5097555783.
What is Dr. Linda Grossheim's NPI?
Dr. Linda Grossheim's National Provider Identifier (NPI) is 1548211360, issued by NPPES.
Does Dr. Linda Grossheim accept Medicare assignment?
Yes. Dr. Linda Grossheim accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Linda Grossheim commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.