Doctor profile · Federal record
Dr. Phyllis Chang, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Bryan, TX
- NPI 1316058266
- Accepts Medicare
- 36 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2206 E Villa Maria RD
Bryan, TX 778022547
(979) 776-4600
fax (979) 774-0877
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- August 5, 2020
- Year of graduation
- 1990 — 36 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Texas #H9845
- Medicaid
- TX #132744701
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1316058266. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,419
Distinct HCPCS
10
Medicare allowed
$138,399
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
88305 |
Pathology examination of tissue using a microscope, intermediate complexity | 493 | 228 | $33 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 213 | 182 | $123 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 161 | 149 | $87 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 141 | 140 | $245 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 123 | 122 | $94 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 85 | 85 | $87 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 75 | 75 | $162 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 33 | 33 | $168 | |
43450 |
Dilation of esophagus | 24 | 24 | $38 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 23 | 23 | $178 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 101. This provider delivers 14× the peer median.Open Payments
Industry payments received
All-time total
$765
Transactions
29
Manufacturers
14
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABBVIE INC. | 9 | $281.16 | |
| Janssen Biotech, Inc. | 3 | $162.35 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 3 | $65.51 | |
| AIMMUNE THERAPEUTICS, INC. | 2 | $33.70 | |
| Phathom Pharmaceuticals, Inc. | 2 | $31.43 | |
| Madrigal Pharmaceuticals | 1 | $30.86 | |
| Celgene Corporation | 2 | $29.88 | |
| Regeneron Healthcare Solutions, Inc. | 1 | $29.62 | |
| Lilly USA, LLC | 1 | $27.31 | |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | 1 | $16.33 | |
| GENZYME CORPORATION | 1 | $16.09 | |
| Ipsen Biopharmaceuticals, Inc | 1 | $14.27 | |
| PFIZER INC. | 1 | $13.37 | |
| Merck Sharp & Dohme LLC | 1 | $13.27 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,068
Patients
487
Total drug cost
$89,356
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 252 | 85 | $3,206 |
| Pantoprazole Sodium | Generic | 211 | 82 | $2,876 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) | Brand | 175 | 168 | $13,640 |
| Famotidine | Generic | 86 | 39 | $1,197 |
| Dexlansoprazole Dr (Dexlansoprazole) | Brand | 70 | 17 | $27,227 |
| Esomeprazole Magnesium | Generic | 60 | 21 | $3,930 |
| Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 36 | 35 | $660 |
| Sucralfate | Generic | 35 | 11 | $3,327 |
| Cholestyramine (Cholestyramine (With Sugar)) | Brand | 31 | 0 | $2,358 |
| Lansoprazole | Generic | 28 | 13 | $1,643 |
Frequently asked questions
What is Dr. Phyllis Chang's medical specialty?
Dr. Phyllis Chang practices Gastroenterology Physician in Bryan, TX.
Where does Dr. Phyllis Chang practice?
Dr. Phyllis Chang practices at 2206 E Villa Maria RD, Bryan, TX 778022547. Office phone: 9797764600.
What is Dr. Phyllis Chang's NPI?
Dr. Phyllis Chang's National Provider Identifier (NPI) is 1316058266, issued by NPPES.
Does Dr. Phyllis Chang accept Medicare assignment?
Yes. Dr. Phyllis Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Phyllis Chang commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.