CLAYTON BURNETT HESS MD
NPI 1235429507
Radiology - Radiation Oncology in Grass Valley, CA

Q: What is Clayton Hess's NPI number?

The NPI number for Clayton Hess is 1235429507. It was assigned to this individual provider in the NPPES registry on April 7, 2011.

Q: What is Clayton Hess'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 Clayton Hess was last updated on February 7, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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 April 07, 2011PECOS EnrolledAccepts Medicare Assignment

155 GLASSON WAY BLDG 3L-20, GRASS VALLEY, CA 95945(530) 274-6600 Get Directions Write a Review

NPPES record last updated: February 7, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 7, 2024, Oct 30, 2018, Jul 9, 2018 (3 updates tracked since 2018).

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About Clayton Burnett Hess Md NPPES

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

CLAYTON BURNETT HESS MD (NPI 1235429507) is an individual radiation oncology provider in Grass Valley, California, licensed in California (A123801) and active in the NPI registry since April 2011. He is enrolled in Medicare PECOS, maintains a secondary practice location in Grass Valley, and is a graduate of Pennsylvania State University College Of Medicine (2011).

NPPES Registry Identity

NPI1235429507

Entity TypeIndividualMale

Primary Taxonomy2085R0001X

Provider Legal NameCLAYTON BURNETT HESSCredential: MD

Location Address155 GLASSON WAY BLDG 3L-20Grass Valley, CA 95945-5723

Mailing AddressPo Box 24132Seattle, WA 98124-0132

Phone(530) 274-6600

Sole ProprietorNo

Medical School CMSPennsylvania State University College Of MedicineGraduated 2011

Enumeration DateApril 7, 2011

Last NPPES UpdateFebruary 7, 20243 updates tracked since enumeration

NPPES CertifiedFebruary 7, 2024

✔ NPI 1235429507 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 CA · A123801✔ Licensed in TX · BP1-0039560✔ Licensed in MA · 270290✔ Licensed in GA · 081479

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.

155 GLASSON WAY BLDG 3L-20, Grass Valley, CA 95945

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Secondary Practice Location 1

Location 1300 Sierra College Dr Ste 150Grass Valley, CA 95945-5083 · Phone (530) 274-6600

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

Clayton Burnett Hess 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 ID7517271596

PECOS Enrollment IDI20150804005725

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 Reassignment

Medicare enrollment records show Clayton Hess reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Grass Valley Radiation Oncology

0.6 mi

Radiation Oncology

300 SIERRA COLLEGE DR STE 150
Grass Valley, CA 95945

Reassigned Medicare billing, California enrollment
9 clinicians in this Medicare group

NPI 1649895194 (530) 802-6400

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 35

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.

2,153 services90 patients

Superficial and/or low voltage radiation treatment delivery 77401

Superficial and/or low voltage radiation treatment delivery is a non-invasive procedure used to treat certain diseases like skin cancer. It uses low energy radiation to target and destroy abnormal cells, aiding in halting disease progression.

1,121 services48 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.

714 services111 patients

Ultrasonic guidance for placement of radiation therapy fields G6001

Ultrasonic guidance for radiation therapy fields involves using sound waves to create images of the treatment area. This helps to precisely locate the area needing radiation therapy, ensuring the treatment is directed accurately, minimizing harm to healthy tissues.

658 services51 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.

573 services37 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.

528 services27 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.

459 services99 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.

321 services109 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.

315 services177 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.

305 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.

182 services96 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

179 services42 patients

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

169 services119 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.

129 services110 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.

120 services90 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.

91 services91 patients

Calculation of radiation therapy dose 77300

87 services50 patients

Special radiation treatment 77470

Special radiation treatment is a medical procedure that uses high-energy rays to destroy or damage cancer cells. It's a targeted approach that aims to minimize harm to healthy tissues. The treatment duration varies based on individual health conditions.

79 services67 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.

63 services50 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

60 services55 patients

Diagnostic exam of voice box using a flexible endoscope 31575

This procedure involves a doctor examining your voice box using a flexible endoscope, a thin tube with a light and camera. It's inserted through your nose or mouth to visualize your throat area. It helps detect any abnormalities in your voice box, ensuring optimal vocal health.

55 services34 patients

Complex radiation therapy planning for delivery of external radiation 77307

Complex radiation therapy planning involves creating a detailed plan to deliver targeted radiation doses. The process includes imaging scans to identify the area needing treatment, and designing a specific radiation plan to protect healthy tissue while effectively treating the disease.

46 services40 patients

Obtaining respiratory data needed to develop the optimal radiation treatment 77293

Obtaining respiratory data is vital for optimal radiation treatment. This involves tracking your breathing patterns to ensure the precise delivery of radiation to the target area, minimizing damage to healthy tissue. It's a non-invasive process and contributes to effective treatment.

39 services36 patients

37 services31 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.

31 services27 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.

29 services26 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

27 services18 patients

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

25 services21 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

25 services23 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

22 services19 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

18 services18 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

16 services16 patients

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

13 services13 patients

Telephone medical discussion with physician, 5-10 minutes 99441

A telephone medical discussion with a physician is a brief, 5-10 minute call where you can discuss your health concerns. It's a convenient way to receive medical advice without needing to visit a clinic. It's important to prepare questions in advance to make the most of this time.

12 services12 patients

Limited ultrasound scan of joint or other extremity structure except blood vessels 76882

A limited ultrasound scan of a joint or other extremity structure lacking blood vessels is a non-invasive procedure that uses sound waves to create images of the inside of your body. This helps in diagnosing and monitoring conditions related to your joints or other similar structures.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95945 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

$176.60 typical visit price

range $58.87 – $176.60

Typical copayment $44.15 (range $14.71 – $44.15)

Most-billed visit code 99205

Established Patient

$73.16 typical visit price

range $19.28 – $144.60

Typical copayment $18.29 (range $4.82 – $36.15)

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.

Referred Medical Equipment & Supplies CMS DME claims 5

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Enteral feeding supply kit; syringe fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4034

Other-Enteral and Parenteral · category OB006N

1 supplier42 claims1,171 services$4.15 avg. paid by Medicare

Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035

Other-Enteral and Parenteral · category OB006N

2 suppliers11 claims271 services$6.29 avg. paid by Medicare

Enteral formula, nutritionally complete with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4150

Other-Enteral and Parenteral · category OB006N

1 supplier20 claims12,865 services$0.44 avg. paid by Medicare

Enteral formula, nutritionally complete, calorically dense (equal to or greater than 1.5 kcal/ml) with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4152

Other-Enteral and Parenteral · category OB006N

3 suppliers49 claims29,353 services$0.39 avg. paid by Medicare

Iv pole E0776

DME-Other DME · category DE000N

2 suppliers12 claims12 services$9.97 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Clayton Hess's NPI number?

The NPI number for Clayton Hess is 1235429507. It was assigned to this individual provider in the NPPES registry on April 7, 2011.

Where is Clayton Hess located?

Clayton Hess practices at 155 Glasson Way Bldg 3l-20, Grass Valley, CA 95945. The listed phone number is (530) 274-6600.

What is Clayton Hess's specialty?

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

Is Clayton Hess enrolled in Medicare?

Yes. Clayton Hess 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 organization bills Medicare for Clayton Hess's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Clayton Hess reassigns Medicare benefits to Grass Valley Radiation Oncology (Grass Valley, CA). The 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 Clayton Hess's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Clayton Hess was last updated on February 7, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.