Doctor profile · Federal record
Dr. Jimmy Chang, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Hackettstown, NJ
- NPI 1629082300
- Accepts Medicare
- 34 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
657 Willow Grove St, Suite 401
Hackettstown, NJ 078401868
(908) 850-7800
fax (908) 850-7802
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- September 11, 2012
- Year of graduation
- 1992 — 34 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- New Jersey #25MA06550000
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1629082300. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,409
Distinct HCPCS
10
Medicare allowed
$165,307
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 525 | 295 | $138 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 260 | 181 | $100 | |
99497 |
Advance care planning, first 30 minutes | 153 | 153 | $89 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 125 | 125 | $142 | |
G0008 |
Administration of influenza virus vaccine | 80 | 80 | $34 | |
90662 |
Influenza vaccine split virus, preservative free | 75 | 75 | $72 | |
G0009 |
Administration of pneumococcal vaccine | 39 | 39 | $34 | |
G0438 |
Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit | 29 | 29 | $181 | |
90677 |
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 28 | 28 | $282 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 24 | 24 | $124 |
In context: peer comparison
Among 13 peers in Hackettstown Internal Medicine Physician, average services per provider: 137. This provider delivers 10× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
2,723
Patients
753
Total drug cost
$35,633
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 425 | 119 | $3,527 |
| Atorvastatin Calcium | Generic | 372 | 113 | $3,905 |
| Levothyroxine Sodium | Generic | 296 | 72 | $3,458 |
| Losartan Potassium | Generic | 178 | 49 | $2,486 |
| Pantoprazole Sodium | Generic | 164 | 50 | $3,118 |
| Omeprazole | Generic | 159 | 49 | $2,948 |
| Alprazolam | Generic | 141 | 35 | $872 |
| Metformin Hcl | Generic | 136 | 40 | $1,519 |
| Zolpidem Tartrate | Generic | 135 | 26 | $929 |
| Valsartan | Generic | 134 | 34 | $4,072 |
Hospital affiliations
Frequently asked questions
What is Dr. Jimmy Chang's medical specialty?
Dr. Jimmy Chang practices Internal Medicine Physician in Hackettstown, NJ.
Where does Dr. Jimmy Chang practice?
Dr. Jimmy Chang practices at 657 Willow Grove St, Hackettstown, NJ 078401868. Office phone: 9088507800.
What is Dr. Jimmy Chang's NPI?
Dr. Jimmy Chang's National Provider Identifier (NPI) is 1629082300, issued by NPPES.
Does Dr. Jimmy Chang accept Medicare assignment?
Yes. Dr. Jimmy Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jimmy Chang 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); Advance care planning (HCPCS 99497). Source: CMS Medicare Physician & Other Practitioners file.