JOHN J CHOMYN M.D.
NPI 1982608725
Radiology - Diagnostic Radiology in Mt Pleasant, SC

Q: What is John Chomyn's NPI number?

The NPI number for John Chomyn is 1982608725. It was assigned to this individual provider in the NPPES registry on June 9, 2005.

Q: What is John Chomyn'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 John Chomyn was last updated on July 24, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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 June 09, 2005PECOS EnrolledAccepts Medicare Assignment

2000 HOSPITAL DR, MT PLEASANT, SC 29464(843) 792-1414 Get Directions Write a Review

NPPES record last updated: July 24, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About John J Chomyn M.d. NPPES

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

JOHN J CHOMYN M.D. (NPI 1982608725) is an individual diagnostic radiology provider in Mt Pleasant, South Carolina, licensed in South Carolina (16461) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, is affiliated with Maine Medical Center, and is a graduate of Rutgers New Jersey Medical School (1987).

NPPES Registry Identity

NPI1982608725

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameJOHN J CHOMYNCredential: M.D.

Location Address2000 HOSPITAL DRMt Pleasant, SC 29464

Mailing AddressPo Box 602108Charlotte, NC 28260-2108 · (843) 792-6200

Phone(843) 792-1414

Sole ProprietorNo

Medical School CMSRutgers New Jersey Medical SchoolGraduated 1987

Enumeration DateJune 9, 2005

Last NPPES UpdateJuly 24, 2018

✔ NPI 1982608725 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

Licenses✔ Licensed in SC · 16461✔ Licensed in ME · 015991

Definition

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

Also ListedRadiology · Vascular & Interventional RadiologyTaxonomy 2085R0204X · License 015991 (ME)

2000 HOSPITAL DR, Mt Pleasant, SC 29464

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Other Identifiers 1

Medicaid302450099ME

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Taro Health.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

John J Chomyn 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 ID4183515943

PECOS Enrollment IDI20040719000789, I20161104001882

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

Carolina Family Care, Inc

2.0 mi

Family Medicine

1440 BEN SAWYER BLVD, STE 1109-1111
Mt Pleasant, SC 29464

Reassigned Medicare billing, South Carolina enrollment
509 clinicians in this Medicare group

NPI 1306252069 (843) 792-1414

Radiology Consultants Of Maine, LLC

935 mi

Diagnostic Radiology

123 MEDICAL CENTER DR
Brunswick, ME 04011

Reassigned Medicare billing, Maine and South Carolina enrollments
18 clinicians in this Medicare group

NPI 1164830139 (207) 729-0181

Franklin Imaging, PLLC

966 mi

Diagnostic Radiology

111 FRANKLIN HEALTH COMMONS
Farmington, ME 04938

Reassigned Medicare billing, Maine enrollment
22 clinicians in this Medicare group

NPI 1497339709 (207) 778-6031

Belfast Bay Radiology

990 mi

Diagnostic Radiology

118 NORTHPORT AVE
Belfast, ME 04915

Reassigned Medicare billing, Maine and South Carolina enrollments
6 clinicians in this Medicare group

NPI 1700882891 (207) 338-2500

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 30

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, 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.

178 services169 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.

65 services65 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.

65 services65 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.

64 services63 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.

52 services52 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.

49 services46 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.

48 services48 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.

32 services32 patients

X-ray of chest, 2 views 71046

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.

24 services24 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.

22 services22 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

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.

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.

18 services18 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.

17 services16 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.

17 services17 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.

17 services17 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.

16 services16 patients

Diagnostic mammography of 1 breast 77065

Diagnostic mammography of 1 breast is a detailed imaging test that allows doctors to closely examine a specific area in the breast. It's often used when a routine screening reveals an abnormality. This test can help identify any unusual changes or issues.

16 services16 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.

15 services15 patients

X-ray of ankle, minimum of 3 views 73610

An ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.

15 services15 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.

14 services14 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

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.

13 services13 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.

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 knee, 3 views 73562

An X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.

12 services12 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.

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

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.

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.

Maine Medical Center

Acute Care Hospitals · Portland, ME

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number200009

Location22 Bramhall StPortland, ME 04102 · Cumberland County

Emergency services Birthing friendly

Mid Coast Hospital

Acute Care Hospitals · Brunswick, ME

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number200021

Location123 Medical Center DriveBrunswick, ME 04011 · Cumberland County

Emergency services Birthing friendly

Penobscot Bay Medical Center

Acute Care Hospitals · Rockport, ME

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number200063

Location6 Glen Cove DriveRockport, ME 04856 · Knox County

Emergency services Birthing friendly

Lincolnhealth

Critical Access Hospitals · Damariscotta, ME

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number201302

Location35 Miles StreetDamariscotta, ME 04543 · Lincoln County

Emergency services

Waldo County General Hospital

Critical Access Hospitals · Belfast, ME

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number201312

Location118 Northport AveBelfast, ME 04915 · Waldo County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 29464 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

$83.18 typical visit price

range $53.57 – $163.84

Typical copayment $20.79 (range $13.39 – $40.96)

Most-billed visit code 99203

Established Patient

$67.12 typical visit price

range $16.96 – $133.52

Typical copayment $16.78 (range $4.24 – $33.38)

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 20

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

STEPHEN COX

Nurse Anesthetist, Certified Registered

2000 HOSPITAL DR
MOUNT PLEASANT, SC 29464

Charleston County (843) 881-0100

EAST COOPER PHYSICIAN GROUP LLC

Radiology (Diagnostic Radiology)

2000 HOSPITAL DR
MT PLEASANT, SC 29464

Charleston County (843) 416-6150

CAROLINA WREN ANESTHESIA SERVICES, LLC

Anesthesiology

2000 HOSPITAL DR
MOUNT PLEASANT, SC 29464

Charleston County (843) 881-0100

SOUTH CAROLINA ANESTHESIA ASSOCIATES, LLC

Anesthesiology

2000 HOSPITAL DR
MOUNT PLEASANT, SC 29464

Charleston County (843) 881-0100

MS. CHIARA BUONANNO OLAYER CRNA

Nurse Anesthetist, Certified Registered

2000 HOSPITAL DR
MOUNT PLEASANT, SC 29464

Charleston County (843) 881-0100

NH VCN VIRTUAL PRIMARY CARE LLC

Family Medicine

2000 HOSPITAL DR
MT PLEASANT, SC 29464

Charleston County (980) 217-2025

DR. CHRISTOPHER FERGUSON D.O.

Internal Medicine

2000 HOSPITAL DR
MOUNT PLEASANT, SC 29464

Charleston County (843) 881-0100

MRS. LAUREN MARTURANO CLAYPOOLE CRNA

Nurse Anesthetist, Certified Registered

2000 HOSPITAL DR
MOUNT PLEASANT, SC 29464

Charleston County (843) 881-0100

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 John Chomyn's NPI number?

The NPI number for John Chomyn is 1982608725. It was assigned to this individual provider in the NPPES registry on June 9, 2005.

Where is John Chomyn located?

John Chomyn practices at 2000 Hospital Dr, Mt Pleasant, SC 29464. The listed phone number is (843) 792-1414.

What is John Chomyn's specialty?

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

Is John Chomyn enrolled in Medicare?

Yes. John Chomyn 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 John Chomyn's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Chomyn reassigns Medicare benefits to 4 organizations: Carolina Family Care, Inc (Mt Pleasant, SC), Radiology Consultants Of Maine, LLC (Brunswick, ME), Franklin Imaging, PLLC (Farmington, ME) and Belfast Bay Radiology (Belfast, ME). 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 John Chomyn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does John Chomyn accept?

Health plans from Taro Health list John Chomyn 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 John Chomyn affiliated with any hospitals?

According to CMS data, John Chomyn is affiliated with Maine Medical Center, Mid Coast Hospital, Penobscot Bay Medical Center, Lincolnhealth and Waldo County General Hospital.

When was this NPI record last updated?

The NPPES record for John Chomyn was last updated on July 24, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.