Doctor profile · Federal record
Dr. John Wang, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Fountain Valley, CA
- NPI 1720048291
- Accepts Medicare
- 27 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
18035 Brookhurst St., Ste. 2100
Fountain Valley, CA 92708
(657) 241-9090
fax (714) 665-4603
Credentials & registration
- NPI registered
- March 2006 — 20 yrs on file
- Profile last updated
- December 28, 2021
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A73379
- Medicaid
- CA #00A733790
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1720048291. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
596
Distinct HCPCS
10
Medicare allowed
$46,436
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 145 | 91 | $115 | |
36415 |
Insertion of needle into vein for collection of blood sample | 142 | 97 | $6 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 134 | 91 | $85 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 71 | 68 | $136 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 21 | 21 | $180 | |
G0008 |
Administration of influenza virus vaccine | 17 | 17 | $33 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 16 | 15 | $16 | |
90662 |
Influenza vaccine split virus, preservative free | 15 | 15 | $72 | |
71046 |
X-ray of chest, 2 views | 12 | 12 | $39 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 12 | 12 | $122 |
In context: peer comparison
Among 36 peers in Fountain Valley Internal Medicine Physician, average services per provider: 345. This provider delivers 1.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
2,035
Patients
777
Total drug cost
$34,782
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 320 | 126 | $5,239 |
| Amlodipine Besylate | Generic | 238 | 93 | $2,783 |
| Levothyroxine Sodium | Generic | 158 | 61 | $3,402 |
| Losartan Potassium | Generic | 154 | 69 | $2,643 |
| Gabapentin | Generic | 129 | 48 | $3,246 |
| Omeprazole | Generic | 129 | 42 | $2,486 |
| Lisinopril | Generic | 126 | 54 | $1,250 |
| Meloxicam | Generic | 126 | 44 | $413 |
| Metformin Hcl | Generic | 116 | 53 | $1,609 |
| Rosuvastatin Calcium | Generic | 97 | 43 | $4,268 |
Hospital affiliations
Frequently asked questions
What is Dr. John Wang's medical specialty?
Dr. John Wang practices Internal Medicine Physician in Fountain Valley, CA.
Where does Dr. John Wang practice?
Dr. John Wang practices at 18035 Brookhurst St., Ste. 2100, Fountain Valley, CA 92708. Office phone: 6572419090.
What is Dr. John Wang's NPI?
Dr. John Wang's National Provider Identifier (NPI) is 1720048291, issued by NPPES.
Does Dr. John Wang accept Medicare assignment?
Yes. Dr. John Wang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Wang commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.