GARRETT L SIMMONS M.D.
NPI 1982047346
Radiology - Diagnostic Radiology in Houston, TX

Q: What is Garrett Simmons's NPI number?

The NPI number for Garrett Simmons is 1982047346. It was assigned to this individual provider in the NPPES registry on April 16, 2013.

Q: What is Garrett Simmons'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 Simmons was last updated on December 15, 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 April 16, 2013PECOS EnrolledAccepts Medicare Assignment

83.13/100

CMS Quality Rating

6720 BERTNER AVE STE 2270, HOUSTON, TX 77030(713) 861-7164 Get Directions Write a Review

NPPES record last updated: December 15, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Dec 15, 2025, Jul 9, 2019 (2 updates tracked since 2019).

On this page

About Garrett L Simmons M.d. NPPES

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

GARRETT L SIMMONS M.D. (NPI 1982047346) is an individual diagnostic radiology provider in Houston, Texas, licensed in Texas (S1275) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, is affiliated with Memorial Hermann Hospital System, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1982047346

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameGARRETT L SIMMONSCredential: M.D.

Location Address6720 BERTNER AVE STE 2270Houston, TX 77030-2604

Mailing Address2123 Woodhead StHouston, TX 77019-6818 · (512) 431-9364

Phone(713) 861-7164

Sole ProprietorNo

Medical School CMSTexas Tech University Health Science Center School Of MedicineGraduated 2013

Enumeration DateApril 16, 2013

Last NPPES UpdateDecember 15, 20252 updates tracked since enumeration

NPPES CertifiedDecember 15, 2025

✔ NPI 1982047346 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 · S1275✔ Licensed in FL · ME173275

Definition

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

6720 BERTNER AVE STE 2270, Houston, TX 77030

Open in Google Maps ↗

Secondary Practice Locations 2

Location 14250 Hospital DrMarianna, FL 32446-1917 · Phone (850) 526-2200 · Fax (850) 718-2844

Location 2PO Box 4346Houston, TX 77210-4346 · Phone (713) 861-7164

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Kansas City, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas 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

Garrett L Simmons 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 ID7012247802

PECOS Enrollment IDI20190920001621, I20250820001667, I20251222001991

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 Simmons reassigns Medicare billing to 21 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Singleton Associates PA

32 mi

Diagnostic Radiology

9250 PINECROFT DR
Shenandoah, TX 77380

Reassigned Medicare billing, Texas enrollment
1,278 clinicians in this Medicare group

NPI 1487811766 (936) 266-2000

Mid Coast Health System

66 mi

Radiology

720 AVENUE F N STE 2
Bay City, TX 77414

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

NPI 1477134476 (979) 543-5510

Peterson Medical Associates

226 mi

Obstetrics & Gynecology

575 HILL COUNTRY DR, STE 202
Kerrville, TX 78028

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

NPI 1770800575 (830) 258-6237

Coaxion PLLC

464 mi

Diagnostic Radiology

1602 AVENUE Q
Lubbock, TX 79401

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

NPI 1629805221 (469) 677-7430

Concord Radiology PLLC

464 mi

Diagnostic Radiology

1602 AVENUE Q
Lubbock, TX 79401

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

NPI 1598260515 (888) 264-0330

Chilton Family Care, LLC

562 mi

Family Medicine

1210 7TH ST S
Clanton, AL 35045

Reassigned Medicare billing, Alabama enrollment
160 clinicians in this Medicare group

NPI 1366857674 (205) 280-0620

Physical Express

569 mi

Family Medicine

4081 ALABAMA HWY 14
Millbrook, AL 36054

Reassigned Medicare billing, Alabama enrollment
126 clinicians in this Medicare group

NPI 1043362734 (334) 285-3222

Ivy Creek Of Elmore, LLC

574 mi

Rural Health

4412 HOGAN RD
Deatsville, AL 36022

Reassigned Medicare billing, Alabama enrollment
182 clinicians in this Medicare group

NPI 1578060349 (334) 514-4851

Wetumpka Urgent Care LLC

577 mi

Urgent Care

11 CAMBRIDGE DRIVE
Wetumpka, AL 36093

Reassigned Medicare billing, Alabama enrollment
158 clinicians in this Medicare group

NPI 1194057554 (334) 567-8633

River Region Family Medicine, LLC

579 mi

Family Medicine

277 HUNTRESS STREET, SUITE 100
Wetumpka, AL 36092

Reassigned Medicare billing, Alabama enrollment
101 clinicians in this Medicare group

NPI 1578195525 (334) 567-4311

Enterprise Urgent Care

580 mi

Urgent Care

6582 BOLL WEEVIL CIRCLE
Enterprise, AL 36330

Reassigned Medicare billing, Alabama enrollment
149 clinicians in this Medicare group

NPI 1285180729 (334) 347-2027

ER Physician Group At Jackson Hospital

612 mi

General Practice

4250 HOSPITAL DR
Marianna, FL 32446

Reassigned Medicare billing, Florida enrollment
180 clinicians in this Medicare group

NPI 1407801194 (850) 526-2200

Ivy Creek Family Care Of Lake Martin

612 mi

Urgent Care

5958 HIGHWAY 49 S UNIT K
Dadeville, AL 36853

Reassigned Medicare billing, Alabama enrollment
118 clinicians in this Medicare group

NPI 1609572890 (256) 825-7821

Prime Healthcare Services-Gadsden Physician Management LLC

627 mi

Family Medicine

303 BAY ST STE 401
Gadsden, AL 35901

Reassigned Medicare billing, Alabama enrollment
124 clinicians in this Medicare group

NPI 1356731467 (256) 467-4731

Middle Tennessee Imaging LLC

640 mi

Diagnostic Radiology

812 N CHARLOTTE ST
Dickson, TN 37055

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

NPI 1770667289 (615) 446-8046

Adi Radiology PC

657 mi

Diagnostic Radiology

4321 CAROTHERS PKWY
Franklin, TN 37067

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

NPI 1083266761 (615) 851-6033

Radiology Alliance PC

667 mi

Diagnostic Radiology

210 25TH AVE N STE 602
Nashville, TN 37203

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

NPI 1861478489 (615) 312-0600

Murfreesboro Radiology & Nuclear Medicine Consultants PLLC

672 mi

Diagnostic Radiology

1700 MEDICAL CENTER PKWY
Murfreesboro, TN 37129

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

NPI 1316043524 (615) 396-4100

Sanford Medical Center Fargo

1,136 mi

Rural Health

141 MAIN STREET
Ellendale, ND 58436

Reassigned Medicare billing, North Dakota enrollment
1,464 clinicians in this Medicare group

NPI 1346256682 (701) 349-3331

Commonwealth Radiology P C

1,162 mi

Diagnostic Radiology

2810 N PARHAM RD STE 315
Richmond, VA 23294

Reassigned Medicare billing, Texas enrollment
Medicare enrollment name: Commonwealth Radiology PC
2 clinicians in this Medicare group

NPI 1588613400 (804) 288-8327

Sanford Clinic

1,184 mi

Diagnostic Radiology

4820 23RD AVE S
Fargo, ND 58104

Reassigned Medicare billing, North Dakota and Texas enrollments
93 clinicians in this Medicare group

NPI 1306641345 (056) 312-4160

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 38

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.

501 services466 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.

260 services252 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.

167 services166 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.

126 services125 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.

120 services120 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.

75 services75 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.

74 services74 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.

70 services70 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.

67 services66 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.

55 services55 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.

52 services46 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.

47 services47 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.

46 services46 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.

42 services42 patients

Ultrasound of both sides of head and neck blood flow 93880

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

39 services39 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.

37 services37 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.

34 services34 patients

Imaging for evaluation of swallowing function 74230

This process, known as a swallowing study, uses imaging technology to view how food and liquid move from your mouth to your stomach. It helps identify any issues you may have swallowing, which can be crucial for determining the best treatment plan.

34 services34 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.

28 services28 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.

27 services27 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

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.

20 services20 patients

Mri scan of middle spinal canal without contrast 72146

An MRI scan of the middle spinal canal without contrast is a non-invasive imaging test. It uses magnetic fields and radio waves to create detailed images of your spine. This helps doctors identify any abnormalities or issues in your spinal canal. No dye is used in this procedure.

19 services19 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.

19 services19 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.

19 services19 patients

Mri scan of blood vessels of head without contrast 70544

An MRI scan of the head's blood vessels without contrast is a non-invasive imaging procedure. It uses a magnetic field and radio waves to create detailed images of the blood vessels in your head. This helps doctors diagnose conditions such as stroke, aneurysm, or other vascular disorders.

17 services16 patients

Mri scan of upper spinal canal before and after contrast 72156

An MRI scan of the upper spinal canal before and after contrast is a non-invasive imaging test. It uses magnetic fields and radio waves to create detailed images of your spine. Contrast dye is injected to enhance these images, providing clearer visuals for accurate diagnosis.

17 services17 patients

X-ray of pelvis, 1-2 views 72170

An X-ray of the pelvis, 1-2 views, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the lower part of your torso. These images help to detect any abnormalities or injuries in your hip bones and surrounding structures.

17 services17 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.

15 services15 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.

15 services15 patients

Ultrasound of leg arteries or artery grafts 93925

An ultrasound of leg arteries or artery grafts is a non-invasive imaging test. It uses high-frequency sound waves to capture live images from inside your body, specifically your leg arteries or grafts. This helps in detecting any blockages or abnormalities.

15 services15 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.

14 services14 patients

X-ray of foot, minimum of 3 views 73630

An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.

14 services12 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.

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.

13 services13 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.

12 services12 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.

12 services11 patients

Ultrasound of one leg arteries or artery grafts 93926

An ultrasound of leg arteries or artery grafts is a non-invasive test using sound waves to create images of your blood vessels. This helps doctors assess blood flow, identify blockages, and monitor the health of grafts.

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.

Memorial Hermann Hospital System

Acute Care Hospitals · Houston, TX

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450184

Location1635 North Loop WestHouston, TX 77008 · Harris County

Emergency services Birthing friendly

Memorial Hermann Northeast Hospital

Acute Care Hospitals · Humble, TX

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450684

Location18951 Memorial NorthHumble, TX 77338 · Harris County

Emergency services Birthing friendly

Bon Secours St Marys Hospital

Acute Care Hospitals · Richmond, VA

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number490059

Location5801 Bremo RdRichmond, VA 23226 · Richmond City County

Emergency services Birthing friendly

Bon Secours Memorial Regional Medical Center

Acute Care Hospitals · Mechanicsville, VA

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number490069

Location8260 Atlee RoadMechanicsville, VA 23116 · Hanover County

Emergency services Birthing friendly

Bon Secours St Francis Medical Center

Acute Care Hospitals · Midlothian, VA

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number490136

Location13710 St Francis BoulevardMidlothian, VA 23114 · Chesterfield County

Emergency services Birthing friendly

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

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 Simmons's NPI number?

The NPI number for Garrett Simmons is 1982047346. It was assigned to this individual provider in the NPPES registry on April 16, 2013.

Where is Garrett Simmons located?

Garrett Simmons practices at 6720 Bertner Ave Ste 2270, Houston, TX 77030. The listed phone number is (713) 861-7164.

What is Garrett Simmons's specialty?

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

Is Garrett Simmons enrolled in Medicare?

Yes. Garrett Simmons 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 Simmons's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Garrett Simmons reassigns Medicare benefits to 21 organizations: Singleton Associates PA (Shenandoah, TX), Mid Coast Health System (Bay City, TX), Peterson Medical Associates (Kerrville, TX), Coaxion PLLC (Lubbock, TX), Concord Radiology PLLC (Lubbock, TX) and 16 more organizations, listed in the Medicare section above. 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 Simmons's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Garrett Simmons accept?

Health plans from Blue Cross Blue Shield of Arizona, Blue Cross Blue Shield of North Dakota, Blue Cross and Blue Shield of Kansas City, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 5 other insurers list Garrett Simmons 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 Simmons affiliated with any hospitals?

According to CMS data, Garrett Simmons is affiliated with Memorial Hermann Hospital System, Memorial Hermann Northeast Hospital, Bon Secours St Marys Hospital, Bon Secours Memorial Regional Medical Center and Bon Secours St Francis Medical Center.

When was this NPI record last updated?

The NPPES record for Garrett Simmons was last updated on December 15, 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.