Doctor profile · Federal record
Dr. Johanna Gerwer, MD, MPH
Endocrinology, Diabetes & Metabolism Physician (CMS: Internal Medicine) · San Diego, CA
- NPI 1043742588
- Accepts Medicare
- 9 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1809 National Ave
San Diego, CA 921132113
(619) 515-2300 - Mailing address
-
823 Gateway Center Way
San Diego, CA 921024541
Credentials & registration
- NPI registered
- April 2017 — 9 yrs on file
- Profile last updated
- September 13, 2022
- Year of graduation
- 2017 — 9 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State license (1)
- California #A169752
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1043742588. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$397
Transactions
13
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Tandem Diabetes Care, Inc. | 4 | $165.18 | |
| BETA BIONICS, INC. | 3 | $95.51 | |
| Abbott Laboratories | 2 | $49.95 | |
| Dexcom, Inc. | 1 | $30.17 | |
| Medtronic, Inc. | 1 | $19.44 | |
| Xeris Pharmaceuticals, Inc. | 1 | $18.99 | |
| Insulet Corporation | 1 | $17.71 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
265
Patients
52
Total drug cost
$165,882
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Trulicity (Dulaglutide) | Brand | 51 | 15 | $69,954 |
| Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) | Brand | 31 | 14 | $16,958 |
| Levothyroxine Sodium | Generic | 30 | 0 | $720 |
| Metformin Hcl | Generic | 30 | 12 | $367 |
| Insulin Syringe (Syringe-Needle,insulin,0.5 Ml) | Brand | 20 | 0 | $754 |
| Jardiance (Empagliflozin) | Brand | 19 | 11 | $31,351 |
| Novolog Flexpen (Insulin Aspart) | Brand | 18 | 0 | $12,644 |
| Ozempic (Semaglutide) | Brand | 16 | 0 | $17,160 |
| Levemir (Insulin Detemir) | Brand | 15 | 0 | $11,676 |
| Basaglar Kwikpen U-100 (Insulin Glargine,hum.Rec.Anlog) | Brand | 13 | 0 | $3,960 |
Frequently asked questions
What is Dr. Johanna Gerwer's medical specialty?
Dr. Johanna Gerwer practices Endocrinology, Diabetes & Metabolism Physician in San Diego, CA.
Where does Dr. Johanna Gerwer practice?
Dr. Johanna Gerwer practices at 1809 National Ave, San Diego, CA 921132113. Office phone: 6195152300.
What is Dr. Johanna Gerwer's NPI?
Dr. Johanna Gerwer's National Provider Identifier (NPI) is 1043742588, issued by NPPES.
Does Dr. Johanna Gerwer accept Medicare assignment?
Yes. Dr. Johanna Gerwer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.