Doctor profile · Federal record
Dr. Alan Chang, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Escondido, CA
- NPI 1699784934
- Accepts Medicare
- MIPS 77.3 / 100 · 2023
- 31 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
225 East 2Nd Avenue
Escondido, CA 920254249
(760) 291-6700
fax (760) 745-1588 - Mailing address
-
225 East Second Avenue
Escondido, CA 920254249
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- December 12, 2024
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #G79904
- Medicaid
- CA #00A623420
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1699784934. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,364
Distinct HCPCS
10
Medicare allowed
$197,143
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 422 | 213 | $137 | |
99310 |
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 250 | 66 | $161 | |
99350 |
Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes | 162 | 29 | $193 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 98 | 71 | $191 | |
99497 |
Advance care planning, first 30 minutes | 90 | 77 | $78 | |
99306 |
Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 83 | 72 | $190 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 68 | 68 | $139 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 50 | 48 | $97 | |
G0008 |
Administration of influenza virus vaccine | 35 | 35 | $33 | |
90662 |
Influenza vaccine split virus, preservative free | 32 | 32 | $72 |
In context: peer comparison
Among 13 peers in Escondido Internal Medicine Physician, average services per provider: 107. This provider delivers 13× the peer median.Open Payments
Industry payments received
All-time total
$817
Transactions
37
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Biotech, INC. | 10 | $199.90 | |
| Amgen INC. | 4 | $86.74 | |
| GlaxoSmithKline, LLC. | 4 | $84.45 | |
| AstraZeneca Pharmaceuticals Lp | 4 | $82.57 | |
| Lilly USA, LLC | 2 | $53.11 | |
| Novo Nordisk INC | 2 | $45.22 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 2 | $43.97 | |
| Actelion Pharmaceuticals US, INC. | 1 | $32.72 | |
| Pfizer INC. | 2 | $30.73 | |
| Takeda Pharmaceuticals U.S.A., INC. | 1 | $27.72 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 1 | $27.26 | |
| Abbott Laboratories | 1 | $23.59 | |
| Exact Sciences Corporation | 1 | $23.07 | |
| Phathom Pharmaceuticals, INC. | 1 | $20.80 | |
| Xeris Pharmaceuticals, INC. | 1 | $17.78 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
5,325
Patients
1,202
Total drug cost
$330,580
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 626 | 161 | $7,700 |
| Levothyroxine Sodium | Generic | 611 | 122 | $9,662 |
| Amlodipine Besylate | Generic | 552 | 138 | $4,158 |
| Eliquis (Apixaban) | Brand | 457 | 64 | $258,886 |
| Rosuvastatin Calcium | Generic | 368 | 82 | $8,104 |
| Lisinopril | Generic | 340 | 89 | $2,624 |
| Pantoprazole Sodium | Generic | 295 | 65 | $3,409 |
| Furosemide | Generic | 291 | 68 | $2,100 |
| Gabapentin | Generic | 283 | 63 | $5,598 |
| Metoprolol Tartrate | Generic | 279 | 67 | $2,803 |
Hospital affiliations
Frequently asked questions
What is Dr. Alan Chang's medical specialty?
Dr. Alan Chang practices Internal Medicine Physician in Escondido, CA.
Where does Dr. Alan Chang practice?
Dr. Alan Chang practices at 225 East 2Nd Avenue, Escondido, CA 920254249. Office phone: 7602916700.
What is Dr. Alan Chang's NPI?
Dr. Alan Chang's National Provider Identifier (NPI) is 1699784934, issued by NPPES.
Does Dr. Alan Chang accept Medicare assignment?
Yes. Dr. Alan Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alan Chang commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent nursing facility care with high level of medical decision making (HCPCS 99310); Residence visit for established patient with high level of medical decision making (HCPCS 99350). Source: CMS Medicare Physician & Other Practitioners file.