RYAN S GROVER M.D.
NPI 1346251287
Radiology - Radiation Oncology in Crossville, TN

Q: What is Ryan Grover's NPI number?

The NPI number for Ryan Grover is 1346251287. It was assigned to this individual provider in the NPPES registry on August 9, 2006.

Q: What is Ryan Grover'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 Ryan Grover was last updated on November 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.

Active since August 09, 2006PECOS EnrolledAccepts Medicare Assignment

421 SOUTH MAIN STREET, CROSSVILLE, TN 38555(931) 456-8390(931) 456-8389 Get Directions Write a Review

NPPES record last updated: November 21, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 21, 2025, Feb 17, 2022 (2 updates tracked since 2022).

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About Ryan S Grover M.d. NPPES

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

RYAN S GROVER M.D. (NPI 1346251287) is an individual radiation oncology provider in Crossville, Tennessee, licensed in Tennessee (64645) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Cumberland Medical Center, and is a graduate of University Of Southern California Keck School Of Medicine (2001).

NPPES Registry Identity

NPI1346251287

Entity TypeIndividualMale

Primary Taxonomy2085R0001X

Provider Legal NameRYAN S GROVERCredential: M.D.

Location Address421 SOUTH MAIN STREETCrossville, TN 38555-5048

Mailing AddressPo Box 24120Knoxville, TN 37933-2120 · (865) 803-4321

Phone(931) 456-8390

Fax(931) 456-8389

Sole ProprietorNo

Medical School CMSUniversity Of Southern California Keck School Of MedicineGraduated 2001

Enumeration DateAugust 9, 2006

Last NPPES UpdateNovember 21, 20252 updates tracked since enumeration

NPPES CertifiedNovember 21, 2025

✔ NPI 1346251287 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 TN · 64645✔ Licensed in CA · A81474

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.

421 SOUTH MAIN STREET, Crossville, TN 38555

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Other Identifiers 1

MedicaidQ071897TN

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

Ryan S Grover 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 ID1850390014

PECOS Enrollment IDI20220316002597

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 Ryan Grover reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

East Tennessee Radiation Oncology, P.C.

61 mi

Radiation Oncology

1915 WHITE AVE
Knoxville, TN 37916

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

NPI 1962589150 (865) 541-1155

Thompson Oncology Group

61 mi

Hematology & Oncology

1915 WHITE AVE
Knoxville, TN 37916

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

NPI 1619975737 (865) 541-1720

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 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.

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.

1,704 services143 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.

1,703 services143 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.

353 services77 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.

321 services115 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.

268 services55 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.

69 services69 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.

57 services54 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.

56 services54 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.

44 services36 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.

32 services32 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.

30 services30 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.

19 services17 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.

15 services12 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

14 services14 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.

11 services11 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.

11 services11 patients

Hospital Affiliations CMS Care Compare 3

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

Cumberland Medical Center

Acute Care Hospitals · Crossville, TN

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number440009

Location421 S Main StCrossville, TN 38555 · Cumberland County

Emergency services Birthing friendly

Fort Sanders Regional Medical Center

Acute Care Hospitals · Knoxville, TN

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number440125

Location1901 W Clinch AveKnoxville, TN 37916 · Knox County

Emergency services Birthing friendly

Parkwest Medical Center

Acute Care Hospitals · Knoxville, TN

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number440173

Location9352 Park West BlvdKnoxville, TN 37923 · Knox County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 38555 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.

Other Providers at the Same Location NPPES 4

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

MICHAEL GARY ALLISON D.O.

Anesthesiology

421 SOUTH MAIN STREET
CROSSVILLE, TN 38555

Cumberland County (931) 484-9511

CUMBERLAND MEDICAL CENTER, INC.

Skilled Nursing Facility

421 SOUTH MAIN STREET
CROSSVILLE, TN 38555

Cumberland County (931) 484-9511

AMANDA GRUBB HALFORD MD

Internal Medicine

421 SOUTH MAIN STREET
CROSSVILLE, TN 38555

Cumberland County (931) 459-7032

DR. WESLEY CHAD HALFORD MD

Internal Medicine

421 SOUTH MAIN STREET
CROSSVILLE, TN 38555

Cumberland County (931) 459-7032

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 Ryan Grover's NPI number?

The NPI number for Ryan Grover is 1346251287. It was assigned to this individual provider in the NPPES registry on August 9, 2006.

Where is Ryan Grover located?

Ryan Grover practices at 421 South Main Street, Crossville, TN 38555. The listed phone number is (931) 456-8390.

What is Ryan Grover's specialty?

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

Is Ryan Grover enrolled in Medicare?

Yes. Ryan Grover 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 Ryan Grover's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ryan Grover reassigns Medicare benefits to 2 organizations: East Tennessee Radiation Oncology, P.C. (Knoxville, TN) and Thompson Oncology Group (Knoxville, 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 Ryan Grover's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ryan Grover accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee and 3 other insurers list Ryan Grover 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 Ryan Grover affiliated with any hospitals?

According to CMS data, Ryan Grover is affiliated with Cumberland Medical Center, Fort Sanders Regional Medical Center and Parkwest Medical Center.

When was this NPI record last updated?

The NPPES record for Ryan Grover was last updated on November 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.