GRANT HARMON MD
NPI 1639606379
Radiology - Radiation Oncology in Gresham, OR

Active since May 12, 2017PECOS EnrolledAccepts Medicare Assignment
24950 SE STARK ST, GRESHAM, OR 97030(503) 674-1152 Get Directions Write a Review

NPPES record last updated: June 6, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 6, 2025, Jul 24, 2018, May 12, 2017 (3 updates tracked since 2017).

About Grant Harmon Md NPPES

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

GRANT HARMON MD (NPI 1639606379) is an individual radiation oncology provider in Gresham, Oregon, licensed in Oregon (MD209685) and active in the NPI registry since May 2017. He is enrolled in Medicare PECOS, is affiliated with Asante Three Rivers Medical Center, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1639606379
Entity TypeIndividualMale
Primary Taxonomy2085R0001X
Provider Legal NameGRANT HARMONCredential: MD
Location Address24950 SE STARK STGresham, OR 97030
Mailing AddressPo Box 3777Portland, OR 97208-3777
Sole ProprietorNo
Medical School CMSLoyola University Of Chicago, Stritch School Of MedicineGraduated 2017
Enumeration DateMay 12, 2017
Last NPPES UpdateJune 6, 20253 updates tracked since enumeration
NPPES CertifiedJune 6, 2025
NPI 1639606379 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0001X
Licenses Licensed in OR · MD209685 Licensed in IL · 125071100
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.
24950 SE STARK ST, Gresham, OR 97030

Secondary Practice Locations 3

Location 1510 SW Ramsey AveGrants Pass, OR 97527-5554 · Phone (541) 789-4673
Location 22825 E Barnett RdMedford, OR 97504-8332 · Phone (541) 789-7000
Location 3940 Royal AveMedford, OR 97504-6193 · Phone (541) 732-7000

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

Grant Harmon 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 ID9335497213
PECOS Enrollment IDI20220526001108
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 16

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.
871 services152 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.
214 services97 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.
175 services91 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.
150 services84 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.
135 services98 patients
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212
This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.
118 services71 patients

Hospital Affiliations CMS Care Compare 5

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

Asante Three Rivers Medical Center

Acute Care Hospitals · Grants Pass, OR
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number380002
Location500 SW Ramsey AvenueGrants Pass, OR 97527 · Josephine County
Emergency services Birthing friendly

Ohsu Hospital And Clinics

Acute Care Hospitals · Portland, OR
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number380009
Location3181 SW Sam Jackson Park RoadPortland, OR 97239 · Multnomah County
Emergency services Birthing friendly

Legacy Good Samaritan Medical Center

Acute Care Hospitals · Portland, OR
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number380017
Location1015 NW 22nd Avenue, W121Portland, OR 97210 · Multnomah County
Emergency services Birthing friendly

Asante Rogue Regional Medical Center

Acute Care Hospitals · Medford, OR
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number380018
Location2825 E Barnett RoadMedford, OR 97504 · Jackson County
Emergency services Birthing friendly

Legacy Mount Hood Medical Center

Acute Care Hospitals · Gresham, OR
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number380025
Location24800 SE Stark StreetGresham, OR 97030 · Multnomah County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97030 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
$176.88 typical visit price
range $58.99 – $176.88
Typical copayment $44.22 (range $14.74 – $44.22)
Most-billed visit code 99205
Established Patient
$73.28 typical visit price
range $19.32 – $144.79
Typical copayment $18.32 (range $4.83 – $36.19)
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

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

Radiology (Radiation Oncology)
24950 SE STARK ST
GRESHAM, OR 97030

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 Grant Harmon's NPI number?

The NPI number for Grant Harmon is 1639606379. It was assigned to this individual provider in the NPPES registry on May 12, 2017.

Where is Grant Harmon located?

Grant Harmon practices at 24950 SE Stark St, Gresham, OR 97030. The listed phone number is (503) 674-1152.

What is Grant Harmon's specialty?

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

Is Grant Harmon enrolled in Medicare?

Yes. Grant Harmon 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.

What insurance does Grant Harmon accept?

Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., Providence Health Plan and Regence BlueCross BlueShield of Oregon list Grant Harmon 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 Grant Harmon affiliated with any hospitals?

According to CMS data, Grant Harmon is affiliated with Asante Three Rivers Medical Center, Ohsu Hospital And Clinics, Legacy Good Samaritan Medical Center, Asante Rogue Regional Medical Center and Legacy Mount Hood Medical Center.

When was this NPI record last updated?

The NPPES record for Grant Harmon was last updated on June 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.