MARK HELQUIST M.D.
NPI 1427110642
Radiology - Diagnostic Radiology in Jacksonville, FL

Q: What is Mark Helquist's NPI number?

The NPI number for Mark Helquist is 1427110642. It was assigned to this individual provider in the NPPES registry on December 14, 2006.

Q: What is Mark Helquist'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 Mark Helquist was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 14, 2006PECOS EnrolledAccepts Medicare Assignment

655 W 8TH ST # C90, CLINICAL CENTER, 1ST FLOOR, JACKSONVILLE, FL 32209(904) 244-4225(904) 244-3383 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Mark Helquist M.d. NPPES

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

MARK HELQUIST M.D. (NPI 1427110642) is an individual diagnostic radiology provider in Jacksonville, Florida, licensed in Florida (TRN8911) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, is affiliated with Archbold Memorial, and is a graduate of University Of Florida College Of Medicine (2004).

NPPES Registry Identity

NPI1427110642

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameMARK HELQUISTCredential: M.D.

Location Address655 W 8TH ST # C90, CLINICAL CENTER, 1ST FLOORJacksonville, FL 32209-6511

Mailing Address655 W 8th St # C90, Clinical Center, 1st FloorJacksonville, FL 32209-6511 · (904) 244-4225 · Fax (904) 244-3383

Phone(904) 244-4225

Fax(904) 244-3383

Sole ProprietorNo

Medical School CMSUniversity Of Florida College Of MedicineGraduated 2004

Enumeration DateDecember 14, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1427110642 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 FL · TRN8911

Definition

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

655 W 8TH ST # C90, Jacksonville, FL 32209

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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

Mark Helquist 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 ID9436200250

PECOS Enrollment IDI20100628000716, I20210914001540

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 Mark Helquist reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Brooks County Hospital

117 mi

Diagnostic Radiology

903 N COURT ST
Quitman, GA 31643

Reassigned Medicare billing, Florida and Georgia enrollments
Also billed through NPI 1306890942 (Georgia)
3 clinicians in this Medicare group

NPI 1639523087 (229) 263-4171

John D. Archbold Memorial Hospital, Inc.

141 mi

Diagnostic Radiology

915 GORDON AVE
Thomasville, GA 31792

Reassigned Medicare billing, Florida and Georgia enrollments
Also billed through NPI 1841644390 (Georgia)
2 clinicians in this Medicare group

NPI 1184078297 (229) 228-2000

John D Archbold Memorial Hospital Inc

141 mi

General Acute Care Hospital

915 GORDON AVE
Thomasville, GA 31792

Reassigned Medicare billing, Georgia and Florida enrollments
Medicare enrollment name: Hospital Authority Of Mitchell County
Also billed through NPI 1235583857 (Florida)
60 clinicians in this Medicare group

NPI 1194779702 (229) 228-2000

Grady General Hospital

155 mi

Diagnostic Radiology

1155 5TH ST SE
Cairo, GA 39828

Reassigned Medicare billing, Florida and Georgia enrollments
Also billed through NPI 1013961507 (Georgia)
3 clinicians in this Medicare group

NPI 1093178485 (229) 377-1150

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 27

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.

570 services437 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.

156 services149 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.

79 services72 patients

Screening 3d breast mammography 77063

Screening 3D breast mammography is a procedure that uses low-dose X-rays to create detailed images of the breast. This allows for early detection of any unusual changes or growths. It's a non-invasive, outpatient procedure that typically takes about 30 minutes.

76 services76 patients

Screening mammography 77067

Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.

76 services76 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.

69 services67 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.

62 services59 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.

60 services58 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.

54 services51 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.

53 services50 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.

47 services46 patients

X-ray of chest, 2 views 71046

45 services45 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.

45 services41 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.

42 services40 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.

32 services30 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.

31 services31 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.

24 services24 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.

23 services22 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.

21 services21 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.

18 services18 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.

18 services17 patients

Dxa bone density measurement of hip, pelvis, spine 77080

A DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.

18 services18 patients

X-ray of knee, 4 or more views 73564

An X-ray of the knee, 4 or more views, is a non-invasive imaging test. It involves capturing multiple images of your knee from different angles. This helps in diagnosing conditions such as fractures, arthritis, or infections. The procedure is quick and painless.

16 services16 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.

16 services16 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.

13 services13 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.

12 services12 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.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Archbold Memorial

Acute Care Hospitals · Thomasville, GA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number110038

Location915 Gordon Avenue & Mimosa DriveThomasville, GA 31792 · Thomas County

Emergency services Birthing friendly

Archbold Grady

Acute Care Hospitals · Cairo, GA

OwnershipVoluntary non-profit - Private

CMS Certification Number110121

Location1155 5th Street, SECairo, GA 39828 · Grady County

Birthing friendly

Sgmc Health

Acute Care Hospitals · Valdosta, GA

2/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number110122

Location2501 North Patterson Street, PO Box 1727Valdosta, GA 31602 · Lowndes County

Emergency services Birthing friendly

Archbold Mitchell

Critical Access Hospitals · Camilla, GA

OwnershipGovernment - Hospital District or Authority

CMS Certification Number111331

Location90 E Stephens StreetCamilla, GA 31730 · Mitchell County

Emergency services

Archbold Brooks

Critical Access Hospitals · Quitman, GA

OwnershipGovernment - Hospital District or Authority

CMS Certification Number111332

Location903 N Court StreetQuitman, GA 31643 · Brooks County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 32209 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

$87.62 typical visit price

range $56.00 – $171.84

Typical copayment $21.90 (range $14.00 – $42.96)

Most-billed visit code 99203

Established Patient

$70.04 typical visit price

range $17.57 – $139.16

Typical copayment $17.51 (range $4.39 – $34.79)

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 9

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

NINA L LUXENBERG M.D.

Radiology (Diagnostic Radiology)

655 W 8TH ST # C90
JACKSONVILLE, FL 32209

Duval County (904) 244-9448

PARKER DOUGLAS FREELS MD

Radiology (Diagnostic Radiology)

655 W 8TH ST # C90
JACKSONVILLE, FL 32209

Duval County (904) 244-4225

DR. YANNI SIMON ZULIA DO

Student in an Organized Health Care Education/Training Program

655 W 8TH ST # C90
JACKSONVILLE, FL 32209

Duval County (904) 244-4230

KENNY NGUYEN MD

Student in an Organized Health Care Education/Training Program

655 W 8TH ST # C90
JACKSONVILLE, FL 32209

Duval County (904) 244-4230

ADNAN MOHAMMED MD

Radiology (Diagnostic Radiology)

655 W 8TH ST # C90
JACKSONVILLE, FL 32209

Duval County (904) 244-4230

MINH XUAN NGUYEN M.D.

Radiology (Diagnostic Radiology)

655 W 8TH ST # C90, CLINICAL CENTER, 1ST FLOOR
JACKSONVILLE, FL 32209

Duval County (904) 244-4225

SCOTT MCGAUGH

Student in an Organized Health Care Education/Training Program

655 W 8TH ST # C90
JACKSONVILLE, FL 32209

Duval County (904) 244-4230

DR. STEVEN EMIL MORALES RIVERA MD

Radiology (Vascular & Interventional Radiology)

655 W 8TH ST # C90
JACKSONVILLE, FL 32209

Duval County (787) 237-0621

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 Mark Helquist's NPI number?

The NPI number for Mark Helquist is 1427110642. It was assigned to this individual provider in the NPPES registry on December 14, 2006.

Where is Mark Helquist located?

Mark Helquist practices at 655 W 8th St # C90 Clinical Center, 1st Floor, Jacksonville, FL 32209. The listed phone number is (904) 244-4225.

What is Mark Helquist's specialty?

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

Is Mark Helquist enrolled in Medicare?

Yes. Mark Helquist 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 Mark Helquist's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Helquist reassigns Medicare benefits to 4 organizations: Brooks County Hospital (Quitman, GA), John D. Archbold Memorial Hospital, Inc. (Thomasville, GA), John D Archbold Memorial Hospital Inc (Thomasville, GA) and Grady General Hospital (Cairo, GA). 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 Mark Helquist's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Mark Helquist affiliated with any hospitals?

According to CMS data, Mark Helquist is affiliated with Archbold Memorial, Archbold Grady, Sgmc Health, Archbold Mitchell and Archbold Brooks.

When was this NPI record last updated?

The NPPES record for Mark Helquist was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.