Doctor profile · Federal record
Dr. Jonathan Nguyen, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Walnut Creek, CA
- NPI 1922549138
- Accepts Medicare
- 9 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1515 Newell Ave
Walnut Creek, CA 945965120
(925) 295-4000 - Mailing address
-
275 W Macarthur Blvd
Oakland, CA 946115641
Credentials & registration
- NPI registered
- March 2017 — 9 yrs on file
- Profile last updated
- September 6, 2022
- Year of graduation
- 2017 — 9 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A158975
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1922549138. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$22
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Insmed, Inc. | 1 | $22.18 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,236
Patients
712
Total drug cost
$17,455
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 244 | 140 | $3,168 |
| Amlodipine Besylate | Generic | 125 | 75 | $1,643 |
| Losartan Potassium | Generic | 125 | 72 | $1,569 |
| Lisinopril | Generic | 118 | 74 | $1,533 |
| Levothyroxine Sodium | Generic | 97 | 53 | $2,144 |
| Metformin Hcl | Generic | 69 | 38 | $810 |
| Atenolol | Generic | 59 | 36 | $698 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 57 | 34 | $1,022 |
| Tamsulosin Hcl | Generic | 54 | 29 | $921 |
| Lisinopril-Hydrochlorothiazide (Lisinopril/Hydrochlorothiazide) | Brand | 52 | 25 | $634 |
Frequently asked questions
What is Dr. Jonathan Nguyen's medical specialty?
Dr. Jonathan Nguyen practices Internal Medicine Physician in Walnut Creek, CA.
Where does Dr. Jonathan Nguyen practice?
Dr. Jonathan Nguyen practices at 1515 Newell Ave, Walnut Creek, CA 945965120. Office phone: 9252954000.
What is Dr. Jonathan Nguyen's NPI?
Dr. Jonathan Nguyen's National Provider Identifier (NPI) is 1922549138, issued by NPPES.
Does Dr. Jonathan Nguyen accept Medicare assignment?
Yes. Dr. Jonathan Nguyen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.