DR. JAMES RONALD GRAY M.D.
NPI 1841219938
Radiology - Radiation Oncology in Nashville, TN

Q: What is James Gray's NPI number?

The NPI number for James Gray is 1841219938. It was assigned to this individual provider in the NPPES registry on July 19, 2006.

Q: What is James Gray'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 James Gray was last updated on June 7, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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 July 19, 2006PECOS EnrolledAccepts Medicare Assignment

16.66/100

CMS Quality Rating

2410 PATTERSON ST, RADIATION ONCOLOGY, NASHVILLE, TN 37203(615) 342-4850(615) 342-4901 Get Directions Write a Review

NPPES record last updated: June 7, 2012. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. James Ronald Gray M.d. NPPES

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

DR. JAMES RONALD GRAY M.D. (NPI 1841219938) is an individual radiation oncology provider in Nashville, Tennessee, licensed in Tennessee (25331) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Williamson Medical Center, and is a graduate of Vanderbilt University School Of Medicine (1986).

NPPES Registry Identity

NPI1841219938

Entity TypeIndividualMale

Primary Taxonomy2085R0001X

Provider Legal NameDR. JAMES RONALD GRAYCredential: M.D.

Location Address2410 PATTERSON ST, RADIATION ONCOLOGYNashville, TN 37203-1551

Mailing AddressPo Box 440261, Radiation OncologyNashville, TN 37244-0261 · (615) 329-0570

Phone(615) 342-4850

Fax(615) 342-4901

Sole ProprietorNo

Medical School CMSVanderbilt University School Of MedicineGraduated 1986

Enumeration DateJuly 19, 2006

Last NPPES UpdateJune 7, 2012

✔ NPI 1841219938 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0001X

License✔ Licensed in TN · 25331

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.

2410 PATTERSON ST, Nashville, TN 37203

Open in Google Maps ↗

Other Identifiers 3

Medicaid30869601TN

Medicare PIN30869601TN

Medicare UPINF48350TN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter Health, Ambetter of Alabama 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. James Ronald Gray M.d. 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 ID7113908534

PECOS Enrollment IDI20040601000181

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 James Gray reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Urology Associates PC

0.5 mi

Urology

2801 CHARLOTTE AVE
Nashville, TN 37209

Reassigned Medicare billing, Tennessee enrollment
42 clinicians in this Medicare group

NPI 1043297542 (615) 250-9200

Tennessee Oncology,pllc

0.5 mi

Diagnostic Radiology

2018 MURPHY AVE, STE 200
Nashville, TN 37203

Reassigned Medicare billing, Tennessee enrollment
464 clinicians in this Medicare group

NPI 1043310428 (615) 320-7387

Lebanon Radiation Oncology Center

27 mi

Radiology

101 PHYSICIANS WAY STE 111
Lebanon, TN 37090

Reassigned Medicare billing, Tennessee enrollment
22 clinicians in this Medicare group

NPI 1750080305 (615) 329-0570

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 19

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.

4,144 services307 patients

Intermediate proton beam radiation treatment 77523

Intermediate proton beam radiation treatment is a precise type of radiation therapy. It uses protons instead of X-rays to treat certain types of cancer and other diseases. The protons can be directed to target the disease area with minimal damage to surrounding healthy tissue.

4,069 services302 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.

894 services209 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.

843 services173 patients

Tissue marker, implantable, any type, each A4648

An implantable tissue marker is a tiny device placed in the body to mark the location of a specific area. It helps doctors accurately identify the spot for future reference, such as during treatment or follow-up visits. It's a safe procedure and usually painless.

363 services121 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.

210 services90 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.

167 services164 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.

160 services160 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.

130 services119 patients

Placement of device in prostate for radiation therapy 55876

This procedure involves placing a small device in the gland below the bladder to deliver radiation therapy. This helps target therapy directly to the concerned area, potentially reducing side effects and improving treatment effectiveness.

127 services126 patients

Injection of biodegradable material next to prostate 55874

This procedure involves the introduction of a biodegradable substance near a gland located in the lower abdomen. This substance helps to create a barrier between the gland and nearby tissues, aiding in the precise delivery of treatment to the intended area.

123 services122 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.

114 services114 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

104 services77 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.

104 services101 patients

Cranial lesion surgery using radiation over multiple sessions 77373

Cranial lesion surgery using radiation involves targeting abnormal tissue in the brain with high-energy rays. This non-invasive procedure is done over multiple sessions to gradually destroy the lesion without harming healthy tissue. It's a precise, painless process often used when traditional surgery isn't possible.

81 services27 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.

48 services44 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.

26 services25 patients

Management of cranial lesion surgery using radiation over multiple sessions 77435

This procedure involves using targeted radiation to treat a lesion in the brain over several sessions. The radiation destroys the abnormal cells, helping to control or eliminate the lesion. It's a non-invasive treatment, meaning no surgical cuts are made.

17 services17 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.

15 services15 patients

Hospital Affiliations CMS Care Compare 3

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

Williamson Medical Center

Acute Care Hospitals · Franklin, TN

4/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number440029

Location4321 Carothers ParkwayFranklin, TN 37067 · Williamson County

Emergency services Birthing friendly

Tristar Summit Medical Center

Acute Care Hospitals · Hermitage, TN

2/5 CMS rating

OwnershipProprietary

CMS Certification Number440150

Location5655 Frist BlvdHermitage, TN 37076 · Davidson County

Emergency services Birthing friendly

Tristar Stonecrest Medical Center

Acute Care Hospitals · Smyrna, TN

3/5 CMS rating

OwnershipProprietary

CMS Certification Number440227

Location200 Stonecrest BoulevardSmyrna, TN 37167 · Rutherford County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37203 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

$160.89 typical visit price

range $52.64 – $160.89

Typical copayment $40.22 (range $13.16 – $40.22)

Most-billed visit code 99205

Established Patient

$66.01 typical visit price

range $16.72 – $131.41

Typical copayment $16.50 (range $4.18 – $32.85)

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.

16.66/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

33.33

Improvement Activities

Reported Quality Measures

Care Plan

Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…

100%27 patients5/55-star benchmark: 100%

Colorectal Cancer Screening

Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer

5%21 patients1/55-star benchmark: 100%

Documentation of Current Medications in the Medical Record

Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.

20%427 patients1/55-star benchmark: 100%

Elder Maltreatment Screen and Follow-Up Plan

Percentage of patients aged 65 years and older with a documented elder maltreatment screen using an Elder Maltreatment Screening Tool on the date of encounter AND a documented follow-up plan on the date of the positive screen

100%27 patients5/55-star benchmark: 100%

Oncology: Medical and Radiation - Pain Intensity Quantified

Percentage of patient visits, regardless of patient age, with a diagnosis of cancer currently receiving chemotherapy or radiation therapy in which pain intensity is quantified

56%417 patients1/55-star benchmark: 100%

Pneumococcal Vaccination Status for Older Adults

Percentage of patients 65 years of age and older who have ever received a pneumococcal vaccine

78%27 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…

11%313 patients1/55-star benchmark: 97%

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 20

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

MR. ROBERT M JOHNSON MD

Internal Medicine

2410 PATTERSON ST, SUITE 106
NASHVILLE, TN 37203

Davidson County (615) 340-4611

GINA G CHANDLER MD

Internal Medicine (Cardiovascular Disease)

2410 PATTERSON ST, STE 212
NASHVILLE, TN 37203

Davidson County (615) 515-2929

ARTHRITIS SPECIALISTS OF NASHVILLE INC

Internal Medicine (Rheumatology)

2410 PATTERSON ST, SUITE 500
NASHVILLE, TN 37203

Davidson County (615) 340-4611

DR. OLANIYI JAMES EKUNDAYO PMHNP

Nurse Practitioner (Psychiatric/Mental Health)

2410 PATTERSON ST
NASHVILLE, TN 37203

Davidson County (615) 457-8585

MRS. CRYSTAL DIANE MOCK PMHNP

Nurse Practitioner (Psychiatric/Mental Health)

2410 PATTERSON ST
NASHVILLE, TN 37203

Davidson County (615) 457-8585

CAMPBELL NEPHROLOGY & HYPERTENSION INC

Legal Medicine

2410 PATTERSON ST, SUITE 402
NASHVILLE, TN 37203

Davidson County (615) 322-9593

ELEANOR MARSHALL OSBORNE M.D.

Radiology (Radiation Oncology)

2410 PATTERSON ST
NASHVILLE, TN 37203

Davidson County (615) 342-4850

LAURA CAROL TAYLOR NP, RN

Nurse Practitioner (Gerontology)

2410 PATTERSON ST
NASHVILLE, TN 37203

Davidson County (615) 342-4850

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 James Gray's NPI number?

The NPI number for James Gray is 1841219938. It was assigned to this individual provider in the NPPES registry on July 19, 2006.

Where is James Gray located?

James Gray practices at 2410 Patterson St Radiation Oncology, Nashville, TN 37203. The listed phone number is (615) 342-4850.

What is James Gray's specialty?

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

Is James Gray enrolled in Medicare?

Yes. James Gray 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 James Gray's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Gray reassigns Medicare benefits to 3 organizations: Urology Associates PC (Nashville, TN), Tennessee Oncology,pllc (Nashville, TN) and Lebanon Radiation Oncology Center (Lebanon, TN). 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 James Gray's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does James Gray accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee and 4 other insurers list James Gray 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 James Gray affiliated with any hospitals?

According to CMS data, James Gray is affiliated with Williamson Medical Center, Tristar Summit Medical Center and Tristar Stonecrest Medical Center.

When was this NPI record last updated?

The NPPES record for James Gray was last updated on June 7, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.