Doctor profile · Federal record
Dr. David Hirshfield, MD
Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · La Jolla, CA
- NPI 1538127402
- Accepts Medicare
- 32 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
9850 Genesee Ave Ste 320
La Jolla, CA 920371208
(858) 554-1212
fax (858) 795-1195 - Mailing address
-
9850 Genesee Ave, Ste 320
La Jolla, CA 920371208
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- February 3, 2022
- Year of graduation
- 1994 — 32 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State licenses (2)
- California #A61886 · Maryland #D0057896
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1538127402. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
176
Distinct HCPCS
8
Medicare allowed
$17,660
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 79 | 40 | $137 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 18 | 16 | $97 | |
36415 |
Insertion of needle into vein for collection of blood sample | 15 | 12 | $8 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 13 | 13 | $177 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 13 | 13 | $138 | |
G0442 |
Annual alcohol misuse screening, 5 to 15 minutes | 13 | 13 | $20 | |
G0446 |
Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes | 13 | 13 | $27 | |
G0444 |
Annual depression screening, 5 to 15 minutes | 12 | 12 | $20 |
In context: peer comparison
Among 33 peers in La Jolla Internal Medicine Physician, average services per provider: 105. This provider delivers 1.7× the peer median.Open Payments
Industry payments received
All-time total
$1,303
Transactions
43
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 11 | $193.48 | |
| Phathom Pharmaceuticals, INC. | 3 | $183.08 | |
| Lilly USA, LLC | 4 | $105.56 | |
| Genzyme Corporation | 2 | $92.17 | |
| Abbvie INC. | 4 | $81.78 | |
| Amgen INC. | 3 | $75.04 | |
| Sanofi-Aventis U.S. LLC | 3 | $73.18 | |
| Novartis Pharmaceuticals Corporation | 2 | $61.89 | |
| Hologic Sales and Service, LLC | 2 | $60.46 | |
| Esperion Therapeutics, INC. | 2 | $42.12 | |
| Novo Nordisk INC | 2 | $37.96 | |
| Inspire Medical Systems, INC. | 1 | $36.23 | |
| Pfizer INC. | 2 | $34.34 | |
| Otsuka America Pharmaceutical, INC. | 1 | $28.37 | |
| Exact Sciences Corporation | 1 | $26.08 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
354
Patients
46
Total drug cost
$28,504
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 48 | 17 | $652 |
| Trazodone Hcl | Generic | 29 | 0 | $264 |
| Losartan Potassium | Generic | 28 | 0 | $609 |
| Amlodipine Besylate | Generic | 25 | 0 | $186 |
| Gabapentin | Generic | 25 | 13 | $810 |
| Metformin Hcl | Generic | 25 | 0 | $711 |
| Metoprolol Tartrate | Generic | 24 | 0 | $182 |
| Rosuvastatin Calcium | Generic | 24 | 0 | $747 |
| Ozempic (Semaglutide) | Brand | 21 | 0 | $22,534 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 19 | 0 | $351 |
Hospital affiliations
Frequently asked questions
What is Dr. David Hirshfield's medical specialty?
Dr. David Hirshfield practices Internal Medicine Physician in La Jolla, CA.
Where does Dr. David Hirshfield practice?
Dr. David Hirshfield practices at 9850 Genesee Ave Ste 320, La Jolla, CA 920371208. Office phone: 8585541212.
What is Dr. David Hirshfield's NPI?
Dr. David Hirshfield's National Provider Identifier (NPI) is 1538127402, issued by NPPES.
Does Dr. David Hirshfield accept Medicare assignment?
Yes. Dr. David Hirshfield accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Hirshfield commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.