DR. GARRETT K. ANDERSEN M.D.
NPI 1972579993
Radiology - Diagnostic Radiology in San Antonio, TX

Q: What is Garrett Andersen's NPI number?

The NPI number for Garrett Andersen is 1972579993. It was assigned to this individual provider in the NPPES registry on February 28, 2006.

Q: What is Garrett Andersen'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 Garrett Andersen was last updated on March 16, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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 February 28, 2006PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

8401 DATAPOINT DR, SUITE 600, SAN ANTONIO, TX 78229(210) 616-7700(210) 616-7709 Get Directions Write a Review

NPPES record last updated: March 16, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Garrett K. Andersen M.d. NPPES

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

DR. GARRETT K. ANDERSEN M.D. (NPI 1972579993) is an individual diagnostic radiology provider in San Antonio, Texas, licensed in Texas (K5443) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Methodist Hospital, and is a graduate of University Of Texas Southwestern Medical School At Dallas (1997).

NPPES Registry Identity

NPI1972579993

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameDR. GARRETT K. ANDERSENCredential: M.D.

Location Address8401 DATAPOINT DR, SUITE 600San Antonio, TX 78229-5900

Mailing Address8401 Datapoint Dr, Suite 600San Antonio, TX 78229-5900 · (210) 616-7700 · Fax (210) 616-7709

Phone(210) 616-7700

Fax(210) 616-7709

Sole ProprietorNo

Medical School CMSUniversity Of Texas Southwestern Medical School At DallasGraduated 1997

Enumeration DateFebruary 28, 2006

Last NPPES UpdateMarch 16, 2016

✔ NPI 1972579993 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

License✔ Licensed in TX · K5443

Definition

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

Also ListedRadiology · Body ImagingTaxonomy 2085B0100X · License K5443 (TX)

8401 DATAPOINT DR, San Antonio, TX 78229

Open in Google Maps ↗

Other Identifiers 8

Medicare PINP00021087TX

Medicare PIN300138322TX

OtherK5443TX · Texas Medical License

Medicare PIN8A4513TX

Medicaid157799101TX

Medicaid157799104TX

Medicare PIN8A4514TX

Other157799103TX · Cshcn

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Insurance Company, UnitedHealthcare.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. Garrett K. Andersen 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 ID3971687468

PECOS Enrollment IDI20100830000300

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

South Texas Radiology Imaging Centers

0.5 mi

Diagnostic Radiology

4410 MEDICAL DR STE 200
San Antonio, TX 78229

Reassigned Medicare billing, Texas enrollment
106 clinicians in this Medicare group

NPI 1396718334 (210) 575-6692

South Texas Radiology Group PA

1.2 mi

Diagnostic Radiology

COLONNADE I, 9901 IH-10 WEST, SUITE 905
San Antonio, TX 78230

Reassigned Medicare billing, Texas enrollment
106 clinicians in this Medicare group

NPI 1851368039 (210) 616-7700

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 46

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.

42,865 services411 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.

31,850 services178 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.

545 services527 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.

213 services209 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.

196 services188 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.

183 services176 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.

177 services173 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.

162 services158 patients

Ct scan of abdomen and pelvis with contrast 74177

135 services135 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.

128 services122 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.

109 services108 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.

102 services97 patients

Ct scan of abdomen and pelvis without contrast 74176

95 services95 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.

90 services90 patients

Low dose ct scan of chest for lung cancer screening 71271

A low-dose CT scan of the chest is a quick, painless procedure that uses a small amount of radiation to create detailed images of your lungs. It's a key tool for early detection of lung cancer, especially for those at high risk.

67 services67 patients

Complete ultrasound scan of abdomen 76700

A complete ultrasound scan of the abdomen is a non-invasive imaging procedure. It uses sound waves to produce images of the organs in your abdomen, such as the liver, gallbladder, spleen, pancreas, and kidneys. It helps in diagnosing, monitoring, and planning treatments.

64 services62 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.

48 services48 patients

Ultrasound scan of head and neck soft tissue 76536

An ultrasound scan of the head and neck soft tissue is a non-invasive procedure that uses sound waves to create images of the soft tissues in these areas. It helps identify any abnormalities or issues, such as tumors, cysts, or infections. It's painless and doesn't involve radiation.

47 services47 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.

46 services46 patients

Ultrasound study of one arm or leg veins with compression and maneuvers 93971

This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.

46 services44 patients

Technetium tc-99m sulfur colloid, diagnostic, per study dose, up to 20 millicuries A9541

Technetium Tc-99m sulfur colloid is used in diagnostic imaging tests. It helps to highlight areas of concern in the body by emitting a small amount of radiation that can be detected by a special camera. This helps doctors to diagnose and monitor various health conditions.

45 services44 patients

Nuclear medicine study of stomach to assess emptying 78264

A nuclear medicine study of the stomach assesses how quickly food leaves the stomach. A safe, radioactive substance is added to a meal. The radiation emitted is tracked, creating images that show the food's progress through the stomach. It's non-invasive and painless.

44 services43 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.

33 services27 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.

33 services33 patients

Ct scan of chest without contrast 71250

32 services32 patients

Ct scan of abdomen before and after contrast 74170

A CT scan of the abdomen before and after contrast is a diagnostic procedure. It involves taking detailed images of your abdomen area. Initially, images are taken without a contrast agent. Then, a contrast dye is given to highlight specific areas inside your body, helping to provide clearer images for better diagnosis.

32 services32 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.

32 services31 patients

X-ray of abdomen, 1 view 74018

25 services25 patients

Ct scan of chest with contrast 71260

24 services24 patients

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

24 services21 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.

23 services23 patients

X-ray of knee, 1-2 views 73560

An X-ray of the knee with 1-2 views is a quick, painless test that produces images of the knee bones. It helps identify fractures, infections, or changes in the knee joint. During the procedure, you'll be asked to stay still while the X-ray machine captures the images.

23 services20 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.

23 services23 patients

Limited ultrasound scan behind abdominal cavity 76775

A limited ultrasound scan behind the abdominal cavity is a non-invasive imaging method that helps visualize structures in the back of your abdomen. This procedure uses sound waves to create pictures of these areas, assisting in diagnosing certain conditions.

23 services23 patients

Fine needle aspiration biopsy using ultrasound guidance, first growth 10005

Fine needle aspiration biopsy with ultrasound guidance is a procedure where a thin needle is inserted into a growth to extract a small sample. Ultrasound helps accurately locate the growth. This sample is then analyzed to determine the nature of the growth.

22 services22 patients

Ultrasound study of arm or leg veins with compression and maneuvers 93970

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

20 services20 patients

X-ray of hip, 2-3 views 73502

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

19 services19 patients

Fluoroscopic guidance for needle placement 77002

Fluoroscopic guidance for needle placement is a medical procedure that uses a special X-ray technology to help accurately place a needle in the body. It's often used in biopsies, injections or other treatments to ensure precision and safety.

18 services16 patients

Ct scan of abdomen without contrast 74150

A CT scan of the abdomen without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your abdominal area, including organs like the liver, pancreas, intestines, and kidneys. It helps in diagnosing diseases, injuries, or abnormalities.

15 services15 patients

X-ray of lower and sacral spine, 2-3 views 72100

An X-ray of the lower and sacral spine involves capturing images of your lower back area, including the tailbone. This procedure helps in identifying problems like fractures, infections, or deformities. 2-3 different angle views provide a comprehensive picture.

14 services14 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

13 services11 patients

Ct scan of blood vessels of chest with contrast 71275

13 services13 patients

Ct scan of abdomen with contrast 74160

A CT scan of the abdomen with contrast is a diagnostic procedure. A special dye (contrast) is introduced into your body to highlight certain areas in the images. The CT scanner uses X-rays to create detailed pictures of your abdomen, helping doctors diagnose conditions or monitor treatment.

13 services13 patients

Ct scan of chest before and after contrast 71270

A CT scan of the chest before and after contrast is a non-invasive imaging procedure. Initially, images of the chest are taken without contrast to get a baseline. Then, a contrast dye is administered, usually through a vein, to highlight specific areas, making them easier to see. The procedure helps in diagnosing various chest conditions.

12 services11 patients

Mri scan of abdomen before and after contrast 74183

12 services12 patients

Limited ultrasound scan of abdomen 76705

12 services12 patients

Hospital Affiliations CMS Care Compare 3

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

Methodist Hospital

Acute Care Hospitals · San Antonio, TX

4/5 CMS rating

OwnershipProprietary

CMS Certification Number450388

Location7700 Floyd Curl DrSan Antonio, TX 78229 · Bexar County

Emergency services Birthing friendly

Hill Country Memorial Hospital

Acute Care Hospitals · Fredericksburg, TX

5/5 CMS rating

OwnershipProprietary

CMS Certification Number450604

Location1020 South State Highway 16Fredericksburg, TX 78624 · Gillespie County

Emergency services Birthing friendly

Methodist Hospital Stone Oak

Acute Care Hospitals · San Antonio, TX

4/5 CMS rating

OwnershipProprietary

CMS Certification Number670055

Location1139 E Sonterra Blvd,San Antonio, TX 78258 · Bexar County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78229 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

$84.92 typical visit price

range $54.84 – $166.88

Typical copayment $21.23 (range $13.71 – $41.72)

Most-billed visit code 99203

Established Patient

$68.55 typical visit price

range $17.52 – $136.11

Typical copayment $17.13 (range $4.38 – $34.02)

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.

100/100

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

Scored as part of a group practice

Quality

100

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.

DR. JEFF SENSENIG DO

Emergency Medicine

8401 DATAPOINT DR, STE 500
SAN ANTONIO, TX 78229

Bexar County (210) 614-0180

PAUL CHEN PA-C

Physician Assistant

8401 DATAPOINT DR, SUITE 700
SAN ANTONIO, TX 78229

Bexar County (210) 487-7463

DR. GLADYS S. SEPULVEDA M.D.

Radiology (Diagnostic Radiology)

8401 DATAPOINT DR, SUITE 600
SAN ANTONIO, TX 78229

Bexar County (210) 616-7700

DR. JOHN H. GURIAN M.D.

Radiology (Diagnostic Radiology)

8401 DATAPOINT DR, SUITE 600
SAN ANTONIO, TX 78229

Bexar County (210) 616-7700

DR. HAROLD M. BRANNAN M.D.

Radiology (Diagnostic Radiology)

8401 DATAPOINT DR, SUITE 600
SAN ANTONIO, TX 78229

Bexar County (210) 616-7700

DR. STEPHEN DOUGLAS DOOLEY M.D.

Radiology (Vascular & Interventional Radiology)

8401 DATAPOINT DR
SAN ANTONIO, TX 78229

Bexar County (210) 616-7796

DR. MICHAEL R. MIDDLEBROOK M.D.

Radiology (Diagnostic Radiology)

8401 DATAPOINT DR, SUITE 600
SAN ANTONIO, TX 78229

Bexar County (210) 616-7700

DR. CHRISTINE LEE JOHNSON M.D.

Pediatrics (Pediatric Emergency Medicine)

8401 DATAPOINT DR, SUITE 500
SAN ANTONIO, TX 78229

Bexar County (210) 614-0180

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 Garrett Andersen's NPI number?

The NPI number for Garrett Andersen is 1972579993. It was assigned to this individual provider in the NPPES registry on February 28, 2006.

Where is Garrett Andersen located?

Garrett Andersen practices at 8401 Datapoint Dr Suite 600, San Antonio, TX 78229. The listed phone number is (210) 616-7700.

What is Garrett Andersen's specialty?

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

Is Garrett Andersen enrolled in Medicare?

Yes. Garrett Andersen 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 Garrett Andersen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Garrett Andersen reassigns Medicare benefits to 2 organizations: South Texas Radiology Imaging Centers (San Antonio, TX) and South Texas Radiology Group PA (San Antonio, TX). 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 Garrett Andersen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Garrett Andersen accept?

Health plans from Oscar Insurance Company and UnitedHealthcare list Garrett Andersen 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 Garrett Andersen affiliated with any hospitals?

According to CMS data, Garrett Andersen is affiliated with Methodist Hospital, Hill Country Memorial Hospital and Methodist Hospital Stone Oak.

When was this NPI record last updated?

The NPPES record for Garrett Andersen was last updated on March 16, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.