WILLIAM TUNG
NPI 1528594058
Internal Medicine - Gastroenterology in Atlanta, GA

Q: What is William Tung's NPI number?

The NPI number for William Tung is 1528594058. It was assigned to this individual provider in the NPPES registry on May 3, 2017.

Q: What is William Tung's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for William Tung was last updated on July 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 May 03, 2017PECOS EnrolledAccepts Medicare Assignment

89.89/100

CMS Quality Rating

3280 HOWELL MILL RD NW STE T100, ATLANTA, GA 30327(404) 603-3543(404) 350-9316 Get Directions Write a Review

NPPES record last updated: July 24, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 24, 2026, Nov 4, 2024, May 14, 2024 and 1 more (4 updates tracked since 2023).

On this page

About William Tung NPPES

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

WILLIAM TUNG (NPI 1528594058) is an individual gastroenterology provider in Atlanta, Georgia, licensed in Georgia (93736) and active in the NPI registry since May 2017. He is enrolled in Medicare PECOS, is affiliated with Piedmont Hospital, and is a graduate of Medical College Of Georgia School Of Medicine (2017).

NPPES Registry Identity

NPI1528594058

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameWILLIAM TUNG

Location Address3280 HOWELL MILL RD NW STE T100Atlanta, GA 30327-4122

Mailing Address3280 Howell Mill Rd Nw Ste T100Atlanta, GA 30327-4122 · (404) 355-3200 · Fax (404) 350-8795

Phone(404) 603-3543

Fax(404) 350-9316

Sole ProprietorNo

Medical School CMSMedical College Of Georgia School Of MedicineGraduated 2017

Enumeration DateMay 3, 2017

Last NPPES UpdateJuly 24, 20264 updates tracked since enumeration

NPPES CertifiedJuly 24, 2026

✔ NPI 1528594058 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in GA · 93736

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

3280 HOWELL MILL RD NW STE T100, Atlanta, GA 30327

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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

William Tung 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 ID6800166539

PECOS Enrollment IDI20230712004231

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 William Tung reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Digestive Healthcare Of Ga, P.C.

Same address

Gastroenterology

3280 HOWELL MILL RD NW STE T100
Atlanta, GA 30327

Reassigned Medicare billing, Georgia enrollment
Medicare enrollment name: Digestive Healthcare Of Georgia
39 clinicians in this Medicare group

NPI 1558365247 (404) 603-3543

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 11

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.

Pathology examination of tissue using a microscope, intermediate complexity 88305

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

96 services32 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.

81 services64 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

78 services55 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.

56 services56 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

47 services47 patients

Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

32 services32 patients

Hospital Affiliations CMS Care Compare

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

Piedmont Hospital

Acute Care Hospitals · Atlanta, GA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number110083

Location1968 Peachtree Rd NWAtlanta, GA 30309 · Fulton County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 30327 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

$100.20 typical visit price

range $18.22 – $140.40

Typical copayment $25.05 (range $4.55 – $35.10)

Most-billed visit code 99214

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.

89.89/100

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

Scored through an Alternative Payment Model

Quality

79.78

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES 7

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

JENNIFER L CANTRELL CRNA

Nurse Anesthetist, Certified Registered