DR. GREGORY L LASSITER MD
NPI 1912984758
Radiology - Diagnostic Radiology in Nashville, TN

Q: What is Gregory Lassiter's NPI number?

The NPI number for Gregory Lassiter is 1912984758. It was assigned to this individual provider in the NPPES registry on December 22, 2005.

Q: What is Gregory Lassiter's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Lassiter was last updated on March 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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 December 22, 2005PECOS EnrolledAccepts Medicare Assignment

78.75/100

CMS Quality Rating

210 25TH AVE N STE 1204, NASHVILLE, TN 37203(615) 312-0600(615) 320-3259 Get Directions Write a Review

NPPES record last updated: March 3, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 3, 2021, Jun 27, 2018 (2 updates tracked since 2018).

On this page

About Dr. Gregory L Lassiter Md NPPES

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

DR. GREGORY L LASSITER MD (NPI 1912984758) is an individual diagnostic radiology provider in Nashville, Tennessee, licensed in Tennessee (34243) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Tristar Greenview Regional Hospital, and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1912984758

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameDR. GREGORY L LASSITERCredential: MD

Location Address210 25TH AVE N STE 1204Nashville, TN 37203-1620

Mailing Address210 25th Ave N Ste 1204Nashville, TN 37203-1620 · (615) 312-0600 · Fax (615) 320-3259

Phone(615) 312-0600

Fax(615) 320-3259

Sole ProprietorNo

Medical School CMSUniversity Of Tennessee, Hsc, College Of MedicineGraduated 1995

Enumeration DateDecember 22, 2005

Last NPPES UpdateMarch 3, 20212 updates tracked since enumeration

NPPES CertifiedMarch 3, 2021

✔ NPI 1912984758 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

License✔ Licensed in TN · 34243

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

210 25TH AVE N STE 1204, Nashville, TN 37203

Open in Google Maps ↗

Secondary Practice Locations 4

Location 14488 Carothers Pkwy Ste 110Franklin, TN 37067-6584 · Phone (615) 721-0935

Location 22018 Murphy Ave Ste 200Nashville, TN 37203-1929 · Phone (615) 320-7387

Location 352 White Bridge PikeNashville, TN 37205-1411 · Phone (615) 354-1255

Location 4103 Physicians Way Ste 100Lebanon, TN 37090-4129 · Phone (615) 443-7436

Other Identifiers 5

Medicaid64038177KY

Medicaid3718587TN

Medicaid3852127TN

Medicaid3721492TN

Medicaid3791068TN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Alliant Health Plans, Inc., Cigna Healthcare, Oscar Health 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. Gregory L Lassiter 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 ID1759281322

PECOS Enrollment IDI20040110000077, I20141217001855

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 Gregory Lassiter reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Radiology Alliance PC

0.2 mi

Diagnostic Radiology

210 25TH AVE N STE 602
Nashville, TN 37203

Reassigned Medicare billing, Kentucky and Tennessee enrollments
144 clinicians in this Medicare group

NPI 1861478489 (615) 312-0600

Tennessee Oncology PLLC

0.5 mi

Hematology & Oncology

2004 HAYES ST STE 350
Nashville, TN 37203

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

NPI 1023066149 (615) 312-3333

Adi Radiology PC

16 mi

Diagnostic Radiology

4321 CAROTHERS PKWY
Franklin, TN 37067

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

NPI 1083266761 (615) 851-6033

Lebanon Pet Scan Center, LLC

27 mi

Diagnostic Radiology

103 PHYSICIANS WAY STE 100
Lebanon, TN 37090

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

NPI 1114551132 (615) 329-0570

Murfreesboro Radiology & Nuclear Medicine Consultants PLLC

29 mi

Diagnostic Radiology

1700 MEDICAL CENTER PKWY
Murfreesboro, TN 37129

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

NPI 1316043524 (615) 396-4100

Middle Tennessee Imaging LLC

32 mi

Diagnostic Radiology

812 N CHARLOTTE ST
Dickson, TN 37055

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

NPI 1770667289 (615) 446-8046

Clarksville Imaging Center LLC

40 mi

Diagnostic Radiology

2320 WILMA RUDOLPH BLVD
Clarksville, TN 37040

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

NPI 1043285539 (615) 747-2984

Louisville Radiology Imaging Consultants, PLLC

113 mi

Diagnostic Radiology

1201 PLEASANT VALLEY RD
Owensboro, KY 42303

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

NPI 1639115447 (708) 915-5671

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 41

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.

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml Q9967

Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.

11,800 services98 patients

Injection, gadobutrol, 0.1 ml A9585

Gadobutrol is a contrast agent used during MRI scans to help provide clearer images. It's injected into your vein before the scan. This helps doctors to see certain areas more clearly for better diagnosis. It's generally safe with few side effects.

2,390 services29 patients

Injection, gadoterate meglumine, 0.1 ml A9575

Gadoterate meglumine is a contrast agent used in MRI scans to help visualize certain areas of your body more clearly. It's injected into your bloodstream, typically through a vein in your arm, and helps doctors get more detailed images.

1,610 services20 patients

Ct scan of chest with contrast 71260

A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.

662 services545 patients

Ct scan of abdomen and pelvis with contrast 74177

A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.

564 services464 patients

Ct scan head or brain without contrast 70450

A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.

496 services461 patients

Nuclear medicine study from skull base to mid-thigh with ct scan 78815

A nuclear medicine study from skull base to mid-thigh with a CT scan involves using a small amount of radioactive material and CT imaging to examine body tissues and organs. This helps detect any abnormalities by providing detailed images of the body's internal structure.

283 services257 patients

Ct scan of chest without contrast 71250

A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.

170 services137 patients

Mri scan of brain before and after contrast 70553

An MRI scan of the brain, both before and after contrast, helps visualize different brain structures. Initially, images are taken without a contrast agent. Then, a safe dye is injected which helps highlight certain areas, providing clearer, more detailed images.

161 services97 patients

Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries A9552

Fluorodeoxyglucose F-18 FDG is a radioactive drug used in PET scans. It helps doctors see how your tissues and organs are functioning. The drug is given in a specific dose, up to 45 millicuries, depending on your body size and the type of scan.

158 services142 patients

Ct scan of soft tissue of neck with contrast 70491

A CT scan of the neck with contrast is a non-invasive imaging procedure. A special dye is administered to highlight the soft tissues in your neck, making them easier to see. This helps detect issues like infections, tumors, or other abnormalities.

152 services131 patients

Ct scan of abdomen and pelvis without contrast 74176

A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.

126 services99 patients

Ct scan of upper spine without contrast 72125

A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.

109 services108 patients

Mri scan of brain before and after contrast 70553

107 services102 patients

Mri scan of brain without contrast 70551

An MRI scan of the brain without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your brain. It helps in detecting abnormalities like tumors, stroke, inflammation, or infection.

103 services103 patients

X-ray of chest, 1 view 71045

A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.

93 services92 patients

Gallium ga-68 gozetotide, diagnostic, (illuccix), 1 millicurie A9596

Gallium Ga-68 Gozetotide (Illuccix) is a diagnostic procedure using a radioactive tracer. It helps visualize certain types of tumors in your body by injecting a small amount of radioactive material. This is safe and aids doctors in accurate diagnosis and treatment planning.

65 services14 patients

Ct scan of abdomen and pelvis with contrast 74177

64 services62 patients

Ct scan of blood vessels of head with contrast 70496

A CT scan of the head's blood vessels with contrast is a diagnostic procedure. A special dye (contrast) is injected into your body to make the blood vessels visible on the scan. This helps identify issues like blockages or abnormalities in your head's blood vessels.

60 services60 patients

Ct scan of blood vessels of neck with contrast 70498

A CT scan of the neck's blood vessels with contrast is a diagnostic procedure. It uses X-rays and a special dye to create detailed images of your neck's blood vessels. This helps doctors detect issues such as blockages or abnormalities.

59 services59 patients

Ct scan of chest with contrast 71260

44 services42 patients

Nuclear medicine study from skull base to mid-thigh with ct scan 78815

43 services43 patients

Nuclear medicine study whole body with ct scan 78816

A Nuclear Medicine Study with a CT Scan is a diagnostic procedure. It uses a small amount of radioactive substance and a CT scan to create detailed images of your body. These images help doctors diagnose, monitor, and treat various conditions.

41 services36 patients

Ct scan of lower spine without contrast 72131

A CT scan of the lower spine without contrast is a non-invasive imaging test. It uses X-rays to create detailed images of your lower back area, helping to detect conditions like fractures, infections, or tumors. It's painless and generally quick.

37 services37 patients

Ct scan of soft tissue of neck with contrast 70491

29 services29 patients

Ct scan of soft tissue of neck without contrast 70490

A CT scan of the neck's soft tissue without contrast is a non-invasive imaging technique. It uses X-rays to create detailed pictures of your neck area, helping to identify issues like infections, injuries, or tumors. No special dye (contrast) is used in this procedure.

28 services23 patients

Ct scan of lower spine with contrast 72132

A CT scan of the lower spine with contrast is a non-invasive imaging test that uses X-ray technology and a contrast dye to create detailed pictures of your lower spine. It helps in diagnosing conditions like herniated discs, fractures, or tumors.

28 services28 patients

Mri scan of lower spinal canal without contrast 72148

An MRI scan of the lower spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to produce detailed images of your lower spine. This helps identify issues like disc problems, tumors, or nerve conditions. No dye is used.

28 services28 patients

Ct scan of head or brain before and after contrast 70470

A CT scan of the head or brain uses special X-ray equipment to create detailed images of your brain's structure. Before and after contrast means two scans are done. Initially, images are taken without a contrast dye. Then, a dye is given to highlight certain areas, providing a clearer picture.

27 services21 patients

Ct scan of abdomen and pelvis without contrast 74176

26 services26 patients

Ct scan of face without contrast 70486

A CT scan of the face without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your face, including bones, soft tissues, and blood vessels. It's often used to diagnose diseases, injuries, or abnormalities. No contrast dye is used in this procedure.

21 services21 patients

Mri scan of brain without contrast 70551

21 services13 patients

Ct scan of middle spine with contrast 72129

A CT scan of the middle spine with contrast is a detailed imaging test. A special dye is used to highlight areas in your spine, providing clearer pictures. It helps doctors diagnose issues such as injuries, infections, or diseases in that area.

21 services21 patients

Mri scan of upper spinal canal without contrast 72141

An MRI scan of the upper spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your upper spine. This helps doctors identify issues such as injuries, infections or diseases. No dye is used.

21 services21 patients

Ct scan of chest without contrast 71250

20 services20 patients

Mri scan of middle spinal canal before and after contrast 72157

An MRI scan of the middle spinal canal with contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your spine, both before and after a contrast dye is injected. The dye helps to highlight certain structures, providing a clearer picture for diagnosis.

15 services13 patients

Ct scan of middle spine without contrast 72128

A CT scan of the middle spine without contrast is a non-invasive imaging test. It uses X-rays to create detailed pictures of your mid-spine area. This scan helps doctors identify issues like fractures, tumors, or infections. No dye is used in this procedure.

13 services13 patients

Mri scan of lower spinal canal without contrast 72148

13 services13 patients

Ct scan head or brain without contrast 70450

12 services11 patients

Mri scan of middle spinal canal before and after contrast 72157

12 services11 patients

Mri scan of lower spinal canal before and after contrast 72158

An MRI scan of the lower spinal canal with contrast is a non-invasive imaging procedure. It uses magnetic fields to generate detailed images of your lower spine. A contrast agent is injected to enhance these images, helping doctors see issues more clearly.

12 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Tristar Greenview Regional Hospital

Acute Care Hospitals · Bowling Green, KY

3/5 CMS rating

OwnershipProprietary

CMS Certification Number180124

Location1801 Ashley CircleBowling Green, KY 42104 · Warren County

Emergency services

Tristar Skyline Medical Center

Acute Care Hospitals · Nashville, TN

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number440006

Location3441 Dickerson PikeNashville, TN 37207 · Davidson County

Emergency services

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 Centennial Medical Center

Acute Care Hospitals · Nashville, TN

4/5 CMS rating

OwnershipProprietary

CMS Certification Number440161

Location2300 Patterson StreetNashville, TN 37203 · Davidson County

Emergency services Birthing friendly

Tristar Hendersonville Medical Center

Acute Care Hospitals · Hendersonville, TN

4/5 CMS rating

OwnershipProprietary

CMS Certification Number440194

Location355 New Shackle Island RdHendersonville, TN 37075 · Sumner 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

$81.53 typical visit price

range $52.64 – $160.89

Typical copayment $20.38 (range $13.16 – $40.22)

Most-billed visit code 99203

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.

78.75/100

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

Scored as part of a group practice

Quality

Improvement Activities

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.

JOHN O NUNES MD

Radiology (Diagnostic Radiology)