DR. GARY LLOYD HORN JR. M.D.
NPI 1720399629
Radiology - Diagnostic Radiology in Houston, TX

Q: What is Gary Horn's NPI number?

The NPI number for Gary Horn is 1720399629. It was assigned to this individual provider in the NPPES registry on June 24, 2010.

Q: What is Gary Horn'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 Gary Horn was last updated on August 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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 June 24, 2010PECOS EnrolledAccepts Medicare Assignment

83.13/100

CMS Quality Rating

6560 FANNIN ST, HOUSTON, TX 77030(713) 441-4431(713) 790-6615 Get Directions Write a Review

NPPES record last updated: August 27, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Dr. Gary Lloyd Horn Jr. M.d. NPPES

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

DR. GARY LLOYD HORN JR. M.D. (NPI 1720399629) is an individual diagnostic radiology provider in Houston, Texas, licensed in Texas (P3539) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS, is affiliated with Chi St Luke's Health Baylor College Of Medicine Me, and maintains a secondary practice location in Houston.

NPPES Registry Identity

NPI1720399629

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameDR. GARY LLOYD HORN JR.Credential: M.D.

Location Address6560 FANNIN STHouston, TX 77030-2761

Mailing Address6565 Fannin StHouston, TX 77030-2703 · (713) 441-4431 · Fax (713) 790-6615

Phone(713) 441-4431

Fax(713) 790-6615

Sole ProprietorNo

Medical School CMSBaylor College Of MedicineGraduated 2010

Enumeration DateJune 24, 2010

Last NPPES UpdateAugust 27, 2025

NPPES CertifiedAugust 27, 2025

✔ NPI 1720399629 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

Licenses✔ Licensed in TX · P3539✔ Licensed in MA · 262077

Definition

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

6560 FANNIN ST, Houston, TX 77030

Open in Google Maps ↗

Secondary Practice Location 1

Location 17200 Cambridge StHouston, TX 77030-4202 · Phone (713) 798-2400

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Sendero Health Plans, Local Nonprofit.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

Dr. Gary Lloyd Horn Jr. 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 ID3678884475

PECOS Enrollment IDI20160614001441

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 17

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.

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.

267 services212 patients

Mri scan of abdomen before and after contrast 74183

An MRI scan of the abdomen before and after contrast provides detailed images of your abdominal organs. Initially, images are taken without a contrast agent. Then, a safe dye is administered, usually via an IV, to highlight certain areas, giving a clearer picture to help diagnose various conditions.

161 services150 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.

124 services120 patients

Mri scan of pelvis before and after contrast 72197

An MRI scan of the pelvis before and after contrast is a non-invasive imaging technique. It uses magnetic fields and radio waves to capture detailed images of your lower abdomen. Contrast dye, safe for the body, improves image clarity. This helps detect abnormalities more accurately.

104 services101 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.

82 services81 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.

73 services71 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.

59 services57 patients

3d radiographic procedure 76376

A 3D radiographic procedure is a non-invasive imaging test that helps doctors visualize the internal structures of your body in three dimensions. This advanced technology provides detailed images, aiding in accurate diagnosis and treatment planning. It involves exposure to minimal radiation.

59 services57 patients

Ct scan of blood vessels of chest with contrast 71275

A CT scan of the chest with contrast is a non-invasive imaging test. It uses X-rays and a special dye to get detailed images of your blood vessels in the chest. This helps in diagnosing conditions related to heart and lungs.

42 services42 patients

X-ray of abdomen, 1 view 74018

An X-ray of the abdomen, 1 view, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the structures in your abdomen, such as the stomach, liver, and intestines. This can help identify issues like blockages, infections, or injuries.

41 services38 patients

Mri scan of abdomen without contrast 74181

An MRI scan of the abdomen without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed pictures of your abdominal organs. This procedure doesn't involve radiation or dye injection.

35 services34 patients

Ct scan of abdomen and pelvis before and after contrast 74178

A CT scan of your abdomen and pelvis with and without contrast helps visualize your internal organs better. Contrast is a special dye that improves the clarity of the images. It's taken orally or injected into your veins before the scan. The process is painless and quick.

27 services25 patients

Limited ultrasound scan of abdomen 76705

A limited ultrasound scan of the abdomen is a non-invasive imaging test. It uses sound waves to produce images of the abdominal organs such as the liver, gallbladder, spleen, pancreas, and kidneys. This helps to identify any abnormalities or issues.

18 services18 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

14 services14 patients

Mri and low frequency vibrations for measuring tissue stiffness 76391

An MRI (Magnetic Resonance Imaging) with low frequency vibrations helps measure tissue stiffness. This non-invasive procedure uses magnetic fields and radio waves to create images of your body. The low frequency vibrations assess how stiff or soft your tissues are, aiding in diagnosis.

14 services14 patients

Ct scan of blood vessels of abdomen and pelvis with contrast 74174

A CT scan of the abdomen and pelvis with contrast is a medical imaging procedure. A special dye, called contrast, is used to make blood vessels more visible. The scan produces detailed images of your abdomen and pelvis, helping doctors to diagnose conditions or plan treatments.

13 services13 patients

Complete ultrasound scan behind abdominal cavity 76770

A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.

12 services12 patients

Hospital Affiliations CMS Care Compare 5

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

Chi St Luke's Health Baylor College Of Medicine Me

Acute Care Hospitals · Houston, TX

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number450193

Location6720 Bertner Ave, Ste Mc1-266Houston, TX 77030 · Harris County

Emergency services

St Luke's The Woodlands Hospital

Acute Care Hospitals · The Woodlands, TX

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450862

Location17200 St Luke's WayThe Woodlands, TX 77384 · Montgomery County

Emergency services Birthing friendly

St Luke's Patients Medical Center

Acute Care Hospitals · Pasadena, TX

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number670031

Location4600 East Sam Houston Parkway SouthPasadena, TX 77505 · Harris County

Emergency services

St Luke's Sugar Land Hospital

Acute Care Hospitals · Sugar Land, TX

3/5 CMS rating

OwnershipProprietary

CMS Certification Number670053

Location1317 Lake Pointe ParkwaySugar Land, TX 77478 · Fort Bend County

Emergency services Birthing friendly

St Luke's Hospital At The Vintage

Acute Care Hospitals · Houston, TX

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number670075

Location20171 Chasewood Park DriveHouston, TX 77070 · Harris County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77030 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

$90.40 typical visit price

range $58.24 – $176.98

Typical copayment $22.60 (range $14.56 – $44.24)

Most-billed visit code 99203

Established Patient

$72.62 typical visit price

range $18.60 – $143.93

Typical copayment $18.15 (range $4.65 – $35.98)

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.

83.13/100

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

Scored as part of a group practice

Quality

80.16

Improvement Activities

Reported Quality Measures

Radiation Consideration for Adult CT: Utilization of Dose Lowering Techniques

Percentage of final reports for patients aged 18 years and older undergoing CT with documentation that one or more of the following dose reduction techniques were used: - Automated exposure control - Adjustment of the mA and/or kV according to patient size -…

100%198 patients

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.

JANET L ATTISHA RN, ACNP

Nurse Practitioner

6560 FANNIN ST, STE 1260
HOUSTON, TX 77030

Harris County (713) 797-0466

TIEN WONG M.D.

Ophthalmology

6560 FANNIN ST, STE 750
HOUSTON, TX 77030

Harris County (713) 524-3434

DR. OLGA WALN M.D.

Psychiatry & Neurology (Neurology)

6560 FANNIN ST, STE 802
HOUSTON, TX 77030

Harris County (713) 441-9551

PARTNERS IN INTERNAL MEDICINE, P.A.

Internal Medicine

6560 FANNIN ST, SUITE 1012
HOUSTON, TX 77030

Harris County (281) 657-0770

KEVIN ANTHONY GRIMES MD

Internal Medicine (Infectious Disease)

6560 FANNIN ST, SUITE 1540
HOUSTON, TX 77030

Harris County (713) 799-9997

NICOLE BAUTISTA DAVENPORT P.A.-C

Physician Assistant

6560 FANNIN ST, SUITE 1842
HOUSTON, TX 77030

Harris County (713) 790-2089

DR. MICHAEL POOL COSELLI M.D.

Surgery

6560 FANNIN ST, STE 1608
HOUSTON, TX 77030

Harris County (713) 796-1608

DR. WILLIAM HYPES OBENOUR JR. M.D.

Internal Medicine

6560 FANNIN ST, SUITE 1112
HOUSTON, TX 77030

Harris County (713) 790-1541

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 Gary Horn's NPI number?

The NPI number for Gary Horn is 1720399629. It was assigned to this individual provider in the NPPES registry on June 24, 2010.

Where is Gary Horn located?

Gary Horn practices at 6560 Fannin St, Houston, TX 77030. The listed phone number is (713) 441-4431.

What is Gary Horn's specialty?

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

Is Gary Horn enrolled in Medicare?

Yes. Gary Horn 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 Gary Horn accept?

Health plans from Blue Cross and Blue Shield of Texas and Sendero Health Plans, Local Nonprofit list Gary Horn 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 Gary Horn affiliated with any hospitals?

According to CMS data, Gary Horn is affiliated with Chi St Luke's Health Baylor College Of Medicine Me, St Luke's The Woodlands Hospital, St Luke's Patients Medical Center, St Luke's Sugar Land Hospital and St Luke's Hospital At The Vintage.

When was this NPI record last updated?

The NPPES record for Gary Horn was last updated on August 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.