Doctor profile · Federal record
Dr. Long Dang, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Westminster, CA
- NPI 1346324613
- 33 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
7891 Westminster Blvd
Westminster, CA 926834043
(714) 839-9091
fax (714) 760-4008
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- February 18, 2023
- Year of graduation
- 1993 — 33 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #G80593
- Medicaid
- CA #00G805930
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1346324613. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
4,723
Distinct HCPCS
10
Medicare allowed
$591,338
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 1,720 | 513 | $79 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 537 | 523 | $127 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 431 | 428 | $130 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 358 | 358 | $171 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 328 | 324 | $173 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 234 | 229 | $182 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 227 | 224 | $248 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 207 | 163 | $119 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 165 | 164 | $104 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 110 | 108 | $132 |
In context: peer comparison
Among 1 peers in Westminster Gastroenterology Physician, average services per provider: 214. This provider delivers 22× the peer median.Open Payments
Industry payments received
All-time total
$17,000
Transactions
50
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Phathom Pharmaceuticals, INC. | 27 | $9,270.42 | |
| Abbvie INC. | 15 | $7,558.12 | |
| Aimmune Therapeutics, INC. | 4 | $69.23 | |
| Boston Scientific Corporation | 1 | $51.18 | |
| RedHill Biopharma INC. | 2 | $37.40 | |
| Braintree Laboratories, INC. | 1 | $13.22 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
3,135
Patients
1,544
Total drug cost
$1,238,886
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Famotidine | Generic | 1,013 | 402 | $22,681 |
| Dexlansoprazole Dr (Dexlansoprazole) | Brand | 602 | 210 | $174,337 |
| Pantoprazole Sodium | Generic | 306 | 150 | $3,000 |
| Clenpiq (Sod Picosulf/Mag Ox/Citric Ac) | Brand | 224 | 223 | $39,160 |
| Creon (Lipase/Protease/Amylase) | Brand | 201 | 62 | $680,406 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 155 | 152 | $13,358 |
| Linzess (Linaclotide) | Brand | 128 | 52 | $103,678 |
| Sucralfate | Generic | 113 | 37 | $4,321 |
| Esomeprazole Magnesium | Generic | 106 | 40 | $6,290 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 68 | 68 | $1,315 |
Hospital affiliations
Frequently asked questions
What is Dr. Long Dang's medical specialty?
Dr. Long Dang practices Gastroenterology Physician in Westminster, CA.
Where does Dr. Long Dang practice?
Dr. Long Dang practices at 7891 Westminster Blvd, Westminster, CA 926834043. Office phone: 7148399091.
What is Dr. Long Dang's NPI?
Dr. Long Dang's National Provider Identifier (NPI) is 1346324613, issued by NPPES.
Does Dr. Long Dang accept Medicare assignment?
Dr. Long Dang does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Long Dang commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.