Physician directory profile

Warren Andrew Chang, MD

Abingdon, VA

Accepts Medicare assignment

Internal medicine

Patient reviews

Office

16000 Johnston Memorial Dr, Fourth Floor, Abingdon, VA 24211

(276) 258-4050

Call the office

Details

NPI

1407057920

Specialty

Internal Medicine

Background and affiliations

Gender: Male
Practice group: Catawba Valley Medical Center · 104 clinicians
Offers telehealth: No
Accepts Medicare assignment: Yes

Practice locations

810 Fairgrove Church Rd, Hickory, NC 28602 · (828) 326-3000
810 Fairgrove Church Rd SE Cvmc Palliative Care Svcs, Hickory, NC 28602 · (828) 326-3000

Hospital affiliations

Catawba Valley Medical Center · Hickory, NC · Hospital rating 2/5

Industry payments

In 2025, drug and medical-device companies reported $78.77 in general payments to Warren Andrew Chang (3 payments). Largest: SUN PHARMACEUTICAL INDUSTRIES INC. ($28.17); Regeneron Healthcare Solutions, Inc. ($25.46); Inari Medical, Inc. ($25.14). Reported under the federal Open Payments program.

Insurance

Accepts Medicare assignment.

Medicare activity

Billed services and units in Original Medicare Part B, 2024.

Scroll the table sideways to see every column.

Original Medicare activity · 2024
HCPCS	Billed services / units	Beneficiaries in this row	Service description (English)	Billing setting
99222	11	11	Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	Facility
99223	104	103	Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	Facility
99232	146	67	Subsequent hospital care with moderate level of medical decision making, if using time, at least 35 minutes	Facility
99233	272	97	Subsequent hospital care with moderate level of medical decision making, if using time, at least 50 minutes	Facility
99239	107	106	Hospital discharge day management, more than 30 minutes	Facility

Common questions

Where is Warren Andrew Chang's office?

The office is at 16000 Johnston Memorial Dr, Fourth Floor, Abingdon, VA 24211.

What is Warren Andrew Chang's phone number?

The office phone is (276) 258-4050.

What is Warren Andrew Chang's specialty?

Specialty: Internal medicine.

Does Warren Andrew Chang bill Medicare?

Yes. Warren Andrew Chang billed Original Medicare Part B services in 2024 (see Medicare activity above).

What is Warren Andrew Chang's NPI number?

Warren Andrew Chang's NPI is 1407057920.

Which hospitals is Warren Andrew Chang affiliated with?

Warren Andrew Chang is affiliated with Catawba Valley Medical Center (Hickory, NC).

Patient reviews

All reviews are moderated. Review policy

Write a review Claim this profile Suggest a correction

Other primary care physicians nearby

All primary care physicians in Abingdon