Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MR. GREGORY D NADEN MD
NPI 1588649396
Radiology - Radiation Oncology in Mountain Home, AR

Active since December 14, 2005PECOS EnrolledAccepts Medicare Assignment
639 HOSPITAL DR, MOUNTAIN HOME, AR 72653(479) 587-1700(479) 587-1366 Get Directions Write a Review

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

Record update history: Jul 6, 2026, Jun 16, 2023, May 30, 2023 (3 updates tracked since 2023).

About Mr. Gregory D Naden Md NPPES

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

MR. GREGORY D NADEN MD (NPI 1588649396) is an individual radiation oncology provider in Mountain Home, Arkansas, licensed in Arkansas (E-15710) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS and is a graduate of Other (1983).

NPPES Registry Identity

NPI1588649396
Entity TypeIndividualMale
Primary Taxonomy2085R0001X
Provider Legal NameMR. GREGORY D NADENCredential: MD
Location Address639 HOSPITAL DRMountain Home, AR 72653-2914
Mailing Address3901 Parkway CirSpringdale, AR 72762-6362 · (479) 587-1700 · Fax (479) 587-1366
Fax(479) 587-1366
Sole ProprietorNo
Medical School CMSOtherGraduated 1983
Enumeration DateDecember 14, 2005
Last NPPES UpdateJuly 6, 20263 updates tracked since enumeration
NPPES CertifiedJuly 6, 2026
NPI 1588649396 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 AR · E-15710 Licensed in IA · 36068
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.
639 HOSPITAL DR, Mountain Home, AR 72653

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

Mr. Gregory D Naden 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 ID1850359167
PECOS Enrollment IDI20220815002276
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 24

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.

Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session G6015
Intensity-modulated radiation therapy (IMRT) is a type of cancer treatment. It uses advanced technology to manipulate photon beams of radiation to conform to the shape of a tumor. IMRT allows for the radiation dose to conform more precisely to the three-dimensional shape of the tumor by modulating—or controlling—the intensity of the radiation beam. This can result in better tumor control and less harm to healthy tissue.
1,935 services107 patients
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.
1,536 services107 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.
608 services141 patients
Continuing radiation therapy consultation per week 77336
Continuing radiation therapy consultation per week involves regular meetings with your healthcare team. These sessions help monitor your progress, manage side effects, and adjust your treatment plan if necessary. It's a key part of ensuring the effectiveness of your radiation therapy.
519 services155 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.
465 services128 patients
Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev G6012
Radiation therapy involves directing high-energy particles to destroy cancer cells. The technique targets 3 or more areas, using custom blocks for precise focus. Tangential ports, wedges, and rotational beams adjust the radiation's path, while compensators balance radiation dose. Electron beam therapy with 6-10 mev energy is used for deep-seated tumors.
279 services24 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 72653 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
$157.74 typical visit price
range $51.36 – $157.74
Typical copayment $39.43 (range $12.84 – $39.43)
Most-billed visit code 99205
Established Patient
$64.56 typical visit price
range $16.16 – $128.77
Typical copayment $16.14 (range $4.04 – $32.19)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Breast Cancer Screening
Percentage of women 50-74 years of age who had a mammogram to screen for breast cancer
100%112 patients5/55-star benchmark: 92%
Colorectal Cancer Screening
Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer
100%368 patients5/55-star benchmark: 85%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
76%279 patients3/55-star benchmark: 100%
Health Information Exchange
The MIPS eligible clinician that transitions or refers their patient to another setting of care or health care clinician (1) uses CEHRT to create a summary of care record; and (2) electronically transmits such summary to a receiving health care clinician for…
35%141 patients2/55-star benchmark: 98%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
100%612 patients5/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
91%641 patients4/55-star benchmark: 100%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
100%586 patients5/55-star benchmark: 97%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
30%1,328 patients2/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
2%687 patients1/55-star benchmark: 79%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 11

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

Nurse Practitioner
639 HOSPITAL DR
MOUNTAIN HOME, AR 72653
Internal Medicine (Hematology & Oncology)
639 HOSPITAL DR
MOUNTAIN HOME, AR 72653
Internal Medicine (Hematology)
639 HOSPITAL DR
MOUNTAIN HOME, AR 72653
Nurse Practitioner
639 HOSPITAL DR
MOUNTAIN HOME, AR 72653
Pharmacy (Community/Retail Pharmacy)
639 HOSPITAL DR
MTN HOME, AR 72653
Radiology (Radiation Oncology)
639 HOSPITAL DR
MOUNTAIN HOME, AR 72653
Internal Medicine (Hematology & Oncology)
639 HOSPITAL DR
MOUNTAIN HOME, AR 72653
Nurse Practitioner
639 HOSPITAL DR
MOUNTAIN HOME, AR 72653

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 Gregory Naden's NPI number?

The NPI number for Gregory Naden is 1588649396. It was assigned to this individual provider in the NPPES registry on December 14, 2005.

Where is Gregory Naden located?

Gregory Naden practices at 639 Hospital Dr, Mountain Home, AR 72653. The listed phone number is (479) 587-1700.

What is Gregory Naden's specialty?

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

Is Gregory Naden enrolled in Medicare?

Yes. Gregory Naden 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 Gregory Naden accept?

Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Louisiana Healthcare Connections, Ambetter from Magnolia Health and Ambetter from Superior HealthPlan and 6 other insurers list Gregory Naden 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.

When was this NPI record last updated?

The NPPES record for Gregory Naden was last updated on July 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 31 days 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.