Doctor profile · Federal record
Dr. Allen Chou, MD
Geriatric Medicine (Internal Medicine) Physician (CMS: Internal Medicine) · Internal Medicine Physician · Garden Grove, CA
- NPI 1215919915
- Accepts Medicare
- 51 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
12665 Garden Grove Blvd, Suite 502-B
Garden Grove, CA 928431901
(714) 534-2222
fax (714) 534-0818
Credentials & registration
- NPI registered
- November 2005 — 21 yrs on file
- Profile last updated
- February 4, 2014
- Year of graduation
- 1975 — 51 yrs since
- Specialty taxonomy
- 207RG0300X — NUCC code
- State license (1)
- California #A36505
- Medicaid
- CA #00A365050
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1215919915. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
117
Distinct HCPCS
2
Medicare allowed
$13,896
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 59 | 36 | $139 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 58 | 36 | $98 |
In context: peer comparison
Among 1 peers in Garden Grove Geriatric Medicine (Internal Medicine) Physician, average services per provider: 58. This provider delivers 2.0× the peer median.Open Payments
Industry payments received
All-time total
$41
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Exact Sciences Corporation | 1 | $21.98 | |
| Merck Sharp & Dohme LLC | 1 | $18.56 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,857
Patients
577
Total drug cost
$26,710
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 312 | 94 | $4,882 |
| Amlodipine Besylate | Generic | 222 | 75 | $2,426 |
| Losartan Potassium | Generic | 196 | 68 | $3,021 |
| Metformin Hcl | Generic | 174 | 59 | $2,646 |
| Omeprazole | Generic | 150 | 39 | $1,770 |
| Levothyroxine Sodium | Generic | 120 | 32 | $2,458 |
| Lisinopril | Generic | 108 | 33 | $1,216 |
| Metoprolol Succinate | Generic | 97 | 31 | $1,858 |
| Glipizide | Generic | 86 | 24 | $1,255 |
| Gabapentin | Generic | 71 | 22 | $1,139 |
Frequently asked questions
What is Dr. Allen Chou's medical specialty?
Dr. Allen Chou practices Geriatric Medicine (Internal Medicine) Physician in Garden Grove, CA.
Where does Dr. Allen Chou practice?
Dr. Allen Chou practices at 12665 Garden Grove Blvd, Garden Grove, CA 928431901. Office phone: 7145342222.
What is Dr. Allen Chou's NPI?
Dr. Allen Chou's National Provider Identifier (NPI) is 1215919915, issued by NPPES.
Does Dr. Allen Chou accept Medicare assignment?
Yes. Dr. Allen Chou accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Allen Chou 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). Source: CMS Medicare Physician & Other Practitioners file.