Doctor profile · Federal record
Dr. Diana Marquardt, MD
Internal Medicine Physician · San Diego, CA
- NPI 1114909454
- 21 yrs on file
- Female
- No sanctions
Practice & contact
- Primary practice
-
4290 Polk Ave
San Diego, CA 921051524
(619) 563-0507
fax (619) 563-0015
Credentials & registration
- NPI registered
- November 2005 — 21 yrs on file
- Profile last updated
- July 8, 2007
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #MDG44220
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1114909454. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$410
Transactions
19
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Radius Health, Inc. | 7 | $165.09 | |
| Novo Nordisk Inc | 6 | $118.10 | |
| Astellas Pharma US Inc | 2 | $43.98 | |
| ViiV Healthcare Company | 1 | $26.38 | |
| Lilly USA, LLC | 1 | $25.83 | |
| Amgen Inc. | 1 | $16.23 | |
| AstraZeneca Pharmaceuticals LP | 1 | $14.60 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,268
Patients
527
Total drug cost
$150,073
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 247 | 67 | $4,248 |
| Metformin Hcl | Generic | 238 | 58 | $2,346 |
| Amlodipine Besylate | Generic | 226 | 65 | $2,633 |
| Omeprazole | Generic | 183 | 38 | $2,052 |
| Lisinopril | Generic | 179 | 44 | $1,977 |
| Losartan Potassium | Generic | 160 | 44 | $2,553 |
| Hydrochlorothiazide | Generic | 147 | 34 | $665 |
| Gabapentin | Generic | 141 | 26 | $2,419 |
| Alendronate Sodium | Generic | 136 | 28 | $1,854 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 132 | 24 | $5,609 |
Frequently asked questions
What is Dr. Diana Marquardt's medical specialty?
Dr. Diana Marquardt practices Internal Medicine Physician in San Diego, CA.
Where does Dr. Diana Marquardt practice?
Dr. Diana Marquardt practices at 4290 Polk Ave, San Diego, CA 921051524. Office phone: 6195630507.
What is Dr. Diana Marquardt's NPI?
Dr. Diana Marquardt's National Provider Identifier (NPI) is 1114909454, issued by NPPES.