Doctor profile · Federal record
Dr. Joseph Diaz, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · San Diego, CA
- NPI 1780047191
- Accepts Medicare
- 11 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
200 W Arbor Dr # 8425
San Diego, CA 921031911
(619) 543-6268
Credentials & registration
- NPI registered
- April 2016 — 10 yrs on file
- Profile last updated
- August 7, 2019
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A154571
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1780047191. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
625
Distinct HCPCS
8
Medicare allowed
$52,465
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 297 | 189 | $96 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 77 | 53 | $124 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 74 | 74 | $56 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 66 | 63 | $65 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 38 | 12 | $82 | |
G0008 |
Administration of influenza virus vaccine | 30 | 30 | $33 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 22 | 21 | $16 | |
90694 |
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 21 | 21 | $76 |
In context: peer comparison
Among 193 peers in San Diego Internal Medicine Physician, average services per provider: 141. This provider delivers 4.4× the peer median.Open Payments
Industry payments received
All-time total
$29
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbott Laboratories | 1 | $29.30 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,874
Patients
609
Total drug cost
$217,100
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 276 | 83 | $3,848 |
| Levothyroxine Sodium | Generic | 205 | 58 | $4,482 |
| Losartan Potassium | Generic | 182 | 58 | $3,528 |
| Amlodipine Besylate | Generic | 162 | 63 | $1,778 |
| Omeprazole | Generic | 137 | 47 | $2,596 |
| Gabapentin | Generic | 131 | 44 | $2,308 |
| Rosuvastatin Calcium | Generic | 118 | 39 | $4,668 |
| Tamsulosin Hcl | Generic | 107 | 37 | $2,774 |
| Lisinopril | Generic | 105 | 31 | $1,016 |
| Hydrochlorothiazide | Generic | 94 | 29 | $471 |
Hospital affiliations
Frequently asked questions
What is Dr. Joseph Diaz's medical specialty?
Dr. Joseph Diaz practices Internal Medicine Physician in San Diego, CA.
Where does Dr. Joseph Diaz practice?
Dr. Joseph Diaz practices at 200 W Arbor Dr # 8425, San Diego, CA 921031911. Office phone: 6195436268.
What is Dr. Joseph Diaz's NPI?
Dr. Joseph Diaz's National Provider Identifier (NPI) is 1780047191, issued by NPPES.
Does Dr. Joseph Diaz accept Medicare assignment?
Yes. Dr. Joseph Diaz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Joseph Diaz 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 99215); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.