Doctor profile · Federal record
Dr. Joe Chen, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Los Alamitos, CA
- NPI 1700817350
- Accepts Medicare
- MIPS 40.3 / 100 · 2023
- 37 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
10861 Cherry Street, Suite 302
Los Alamitos, CA 907205403
(562) 493-1011
fax (562) 594-9223
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- August 25, 2015
- Year of graduation
- 1989 — 37 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #G70529
- Medicaid
- CA #GR0092040
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1700817350. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,957
Distinct HCPCS
10
Medicare allowed
$240,951
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 316 | 210 | $134 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 294 | 214 | $90 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 293 | 127 | $83 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 157 | 157 | $114 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 153 | 153 | $264 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 136 | 130 | $137 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 108 | 107 | $105 | |
88305 |
Pathology examination of tissue using a microscope, intermediate complexity | 91 | 36 | $39 | |
G0500 |
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 88 | 88 | $6 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 53 | 53 | $179 |
In context: peer comparison
Among 1 peers in Los Alamitos Gastroenterology Physician, average services per provider: 97. This provider delivers 20× the peer median.Open Payments
Industry payments received
All-time total
$2,668
Transactions
98
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 34 | $706.40 | |
| Madrigal Pharmaceuticals | 7 | $339.84 | |
| Janssen Biotech, INC. | 14 | $336.02 | |
| Phathom Pharmaceuticals, INC. | 4 | $186.10 | |
| Pfizer INC. | 8 | $184.52 | |
| Lilly USA, LLC | 2 | $141.22 | |
| Regeneron Healthcare Solutions, INC. | 4 | $136.70 | |
| Aimmune Therapeutics, INC. | 6 | $110.75 | |
| Celltrion USA INC. | 4 | $104.72 | |
| Merck Sharp & Dohme LLC | 4 | $97.21 | |
| Genzyme Corporation | 3 | $80.93 | |
| Ironwood Pharmaceuticals, INC | 2 | $48.42 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 2 | $46.52 | |
| Takeda Pharmaceuticals U.S.A., INC. | 2 | $42.96 | |
| Qol Medical, LLC | 2 | $37.34 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
959
Patients
447
Total drug cost
$566,455
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 190 | 78 | $3,779 |
| Pantoprazole Sodium | Generic | 163 | 68 | $3,487 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 107 | 106 | $7,977 |
| Plenvu (Peg3350/Sod Sul/Nacl/Kcl/Asb/C) | Brand | 103 | 102 | $14,663 |
| Linzess (Linaclotide) | Brand | 61 | 15 | $45,273 |
| Humira(Cf) Pen (Adalimumab) | Brand | 48 | 0 | $344,520 |
| Famotidine | Generic | 47 | 23 | $1,287 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 45 | 44 | $776 |
| Ondansetron Odt (Ondansetron) | Brand | 35 | 0 | $1,584 |
| Xifaxan (Rifaximin) | Brand | 32 | 0 | $90,597 |
Frequently asked questions
What is Dr. Joe Chen's medical specialty?
Dr. Joe Chen practices Gastroenterology Physician in Los Alamitos, CA.
Where does Dr. Joe Chen practice?
Dr. Joe Chen practices at 10861 Cherry Street, Los Alamitos, CA 907205403. Office phone: 5624931011.
What is Dr. Joe Chen's NPI?
Dr. Joe Chen's National Provider Identifier (NPI) is 1700817350, issued by NPPES.
Does Dr. Joe Chen accept Medicare assignment?
Yes. Dr. Joe Chen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Joe Chen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.