THOMAS H. CHUN MD
NPI 1922185842
Urology in Marietta, GA

Q: What is Thomas Chun's NPI number?

The NPI number for Thomas Chun is 1922185842. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Q: What is Thomas Chun's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Q: When was this NPI record last updated?

The NPPES record for Thomas Chun was last updated on September 30, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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 November 01, 2006PECOS EnrolledAccepts Medicare Assignment

92.93/100

CMS Quality Rating

55 WHITCHER ST # 250, MARIETTA, GA 30060(770) 428-4475(770) 426-1499 Get Directions Write a Review

NPPES record last updated: September 30, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Thomas H. Chun Md NPPES

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

THOMAS H. CHUN MD (NPI 1922185842) is an individual urology provider in Marietta, Georgia, licensed in Georgia (47580) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS, is affiliated with Wellstar Kennestone Regional Medical Center, and is a graduate of Emory University School Of Medicine (2003).

NPPES Registry Identity

NPI1922185842

Entity TypeIndividualMale

Primary Taxonomy208800000X

Provider Legal NameTHOMAS H. CHUNCredential: MD

Location Address55 WHITCHER ST # 250Marietta, GA 30060

Mailing Address55 Whitcher St # 250Marietta, GA 30060 · (770) 428-4475 · Fax (770) 426-1499

Phone(770) 428-4475

Fax(770) 426-1499

Sole ProprietorNo

Medical School CMSEmory University School Of MedicineGraduated 2003

Enumeration DateNovember 1, 2006

Last NPPES UpdateSeptember 30, 2019

✔ NPI 1922185842 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians

Taxonomy Code208800000X

License✔ Licensed in GA · 47580

Definition

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

55 WHITCHER ST # 250, Marietta, GA 30060

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Alliant Health Plans, Inc., Ambetter from Absolute Total Care, Ambetter Health 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

Thomas H. Chun Md 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 ID547449654

PECOS Enrollment IDI20110121000206

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 Reassignment

Medicare enrollment records show Thomas Chun reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Wellstar Medical Group, LLC

Same address

Urology

55 WHITCHER ST NE, SUITE 250
Marietta, GA 30060

Reassigned Medicare billing, Georgia enrollment
3,885 clinicians in this Medicare group

NPI 1467883512 (770) 428-4475

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 15

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.

Automated urinalysis test 81003

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

363 services292 patients

Ultrasound measurement of bladder capacity after voiding 51798

Ultrasound measurement of bladder capacity after voiding is a non-invasive test that uses sound waves to create images of your bladder. It's done after you've emptied your bladder to see if there's any leftover urine, which can help diagnose certain conditions.

258 services211 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

238 services200 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

212 services174 patients

Leuprolide acetate (for depot suspension), 7.5 mg J9217

Leuprolide acetate is a medication that helps regulate certain hormone levels in your body. It's injected into your muscle once a month. This treatment can help manage various health conditions related to hormone imbalance. Always follow your doctor's instructions.

106 services15 patients

Diagnostic exam of bladder and urethra using an endoscope 52000

This procedure involves using a thin, flexible tube with a light, called an endoscope, to examine the bladder and urethra. It helps in identifying any abnormalities or issues that may be causing discomfort or other symptoms.

83 services76 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

63 services63 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

60 services60 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.

39 services37 patients

Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle 96402

This procedure involves the injection of hormone-based anti-cancer drugs under the skin or into a muscle. These medications help to slow down or stop the growth of certain types of cancer cells. The process is usually quick and can be performed in a clinic or hospital.

36 services16 patients

Complex measurement of pressure of urine flow in bladder with voiding pressure studies 51728

This procedure measures the pressure in your bladder as it fills and empties. It helps to understand how well your bladder is functioning. Sensors record pressure levels during these processes, providing valuable data for your doctor.

15 services15 patients

Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings 51784

This procedure involves the use of non-invasive devices to record the electrical activity of muscles at specific body openings. It's helpful in understanding muscle function and can assist in diagnosing certain conditions.

15 services15 patients

Insertion of device into abdomen with pressure and urine flow rate study 51797

This procedure involves placing a small device into your abdomen to monitor pressure and urine flow rates. It helps in understanding how well your body is processing and eliminating liquid waste. It's a safe procedure, typically performed under local anesthesia.

14 services14 patients

Biopsy of prostate gland 55700

A biopsy of the prostate gland is a procedure where a small sample of tissue is taken from your body's internal gland, located near the bladder, for testing. This helps in diagnosing potential health issues. It's usually done with a fine needle and imaging technology for accuracy.

13 services13 patients

Ultrasonic guidance for needle placement 76942

Ultrasonic guidance for needle placement is a technique where sound waves create images that help accurately position the needle during procedures. This method ensures precision, minimizes discomfort, and increases safety.

12 services12 patients

Hospital Affiliations CMS Care Compare 4

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

Wellstar Kennestone Regional Medical Center

Acute Care Hospitals · Marietta, GA

4/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number110035

Location677 Church StreetMarietta, GA 30060 · Cobb County

Emergency services Birthing friendly

Wellstar Paulding Medical Center

Acute Care Hospitals · Hiram, GA

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number110042

Location2518 Jimmy Lee Smith ParkwayHiram, GA 30141 · Paulding County

Wellstar Cobb Medical Center

Acute Care Hospitals · Austell, GA

2/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number110143

Location3950 Austell RdAustell, GA 30106 · Cobb County

Birthing friendly

Wellstar North Fulton Hospital

Acute Care Hospitals · Roswell, GA

2/5 CMS rating

OwnershipProprietary

CMS Certification Number110198

Location3000 Hospital BoulevardRoswell, GA 30076 · Fulton County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 30060 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

$130.64 typical visit price

range $56.84 – $172.43

Typical copayment $32.66 (range $14.21 – $43.10)

Most-billed visit code 99204

Established Patient

$70.85 typical visit price

range $18.22 – $140.40

Typical copayment $17.71 (range $4.55 – $35.10)

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.

92.93/100

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

Scored through an Alternative Payment Model

Quality

80.38

Promoting Interoperability

100

Improvement Activities

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Lubricant, individual sterile packet, each A4332

DME-Medical/Surgical Supplies · category DA000N

2 suppliers28 claims4,590 services$0.07 avg. paid by Medicare

Intermittent urinary catheter; straight tip, with or without coating (teflon, silicone, silicone elastomer, or hydrophilic, etc.), each A4351

DME-Orthotic Devices · category DF008N

3 suppliers20 claims6,090 services$1.22 avg. paid by Medicare

Intermittent urinary catheter; coude (curved) tip, with or without coating (teflon, silicone, silicone elastomeric, or hydrophilic, etc.), each A4352

DME-Orthotic Devices · category DF008N

3 suppliers31 claims5,220 services$6.05 avg. paid by Medicare

Lubricant, per ounce A4402

DME-Orthotic Devices · category DF010N

3 suppliers19 claims172 services$1.31 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Thomas Chun's NPI number?

The NPI number for Thomas Chun is 1922185842. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Where is Thomas Chun located?

Thomas Chun practices at 55 Whitcher St # 250, Marietta, GA 30060. The listed phone number is (770) 428-4475.

What is Thomas Chun's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Is Thomas Chun enrolled in Medicare?

Yes. Thomas Chun 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 organization bills Medicare for Thomas Chun's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Chun reassigns Medicare benefits to Wellstar Medical Group, LLC (Marietta, GA). The 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 Thomas Chun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Thomas Chun accept?

Health plans from Alliant Health Plans, Inc., Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama and Ambetter of North Carolina and 2 other insurers list Thomas Chun 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 Thomas Chun affiliated with any hospitals?

According to CMS data, Thomas Chun is affiliated with Wellstar Kennestone Regional Medical Center, Wellstar Paulding Medical Center, Wellstar Cobb Medical Center and Wellstar North Fulton Hospital.

When was this NPI record last updated?

The NPPES record for Thomas Chun was last updated on September 30, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.