Doctor profile · Federal record
Dr. Paul Nguyenfa, MD
Internal Medicine Physician (CMS: Internal Medicine) · Student in an Organized Health Care Education/Training Program · Los Angeles, CA
- NPI 1831535749
- Accepts Medicare
- 13 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
757 Westwood Plz
Los Angeles, CA 900958358
(310) 825-9111 - Additional location
-
101 E Valencia Mesa Dr
Fullerton, CA 928353809
(714) 447-5027
Credentials & registration
- NPI registered
- May 2013 — 13 yrs on file
- Profile last updated
- June 18, 2019
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A136278
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1831535749. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
786
Distinct HCPCS
5
Medicare allowed
$85,953
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 389 | 158 | $83 | |
99239 |
Hospital discharge day management, more than 30 minutes | 138 | 136 | $121 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 115 | 55 | $125 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 84 | 82 | $137 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 60 | 59 | $183 |
In context: peer comparison
Among 262 peers in Los Angeles Internal Medicine Physician, average services per provider: 160. This provider delivers 4.9× the peer median.Open Payments
Industry payments received
All-time total
$188
Transactions
3
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Pharmaceuticals, INC | 3 | $187.82 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
295
Patients
194
Total drug cost
$20,106
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Furosemide | Generic | 56 | 35 | $225 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 27 | 26 | $519 |
| Potassium Chloride | Generic | 24 | 14 | $769 |
| Eliquis (Apixaban) | Brand | 21 | 11 | $15,581 |
| Ciprofloxacin Hcl | Generic | 19 | 16 | $219 |
| Atorvastatin Calcium | Generic | 18 | 14 | $125 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 18 | 18 | $102 |
| Pantoprazole Sodium | Generic | 18 | 11 | $282 |
| Prednisone | Generic | 18 | 14 | $118 |
| Ceftriaxone (Ceftriaxone Sodium) | Brand | 14 | 0 | $1,754 |
Frequently asked questions
What is Dr. Paul Nguyenfa's medical specialty?
Dr. Paul Nguyenfa practices Internal Medicine Physician in Los Angeles, CA.
Where does Dr. Paul Nguyenfa practice?
Dr. Paul Nguyenfa practices at 757 Westwood Plz, Los Angeles, CA 900958358. Office phone: 3108259111.
What is Dr. Paul Nguyenfa's NPI?
Dr. Paul Nguyenfa's National Provider Identifier (NPI) is 1831535749, issued by NPPES.
Does Dr. Paul Nguyenfa accept Medicare assignment?
Yes. Dr. Paul Nguyenfa accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Paul Nguyenfa commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.