Doctor profile · Federal record
Dr. Kathy Joo, M.D.
Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Internal Medicine Physician · Temecula, CA
- NPI 1457318347
- Accepts Medicare
- 30 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
29645 Rancho California RD, Suite 134
Temecula, CA 925916200
(951) 308-1325
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- June 20, 2016
- Year of graduation
- 1996 — 30 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State license (1)
- California #A 79206
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1457318347. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
219
Distinct HCPCS
3
Medicare allowed
$30,933
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 175 | 113 | $132 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 25 | 25 | $172 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 19 | 16 | $185 |
In context: peer comparison
Among 1 peers in Temecula Endocrinology, Diabetes & Metabolism Physician, average services per provider: 73. This provider delivers 3.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,539
Patients
529
Total drug cost
$1,018,055
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 258 | 77 | $6,267 |
| Metformin Hcl | Generic | 188 | 69 | $3,062 |
| Jardiance (Empagliflozin) | Brand | 181 | 61 | $218,133 |
| Rosuvastatin Calcium | Generic | 127 | 45 | $5,319 |
| Trulicity (Dulaglutide) | Brand | 124 | 26 | $209,762 |
| Lantus Solostar (Insulin Glargine,Hum.Rec.Anlog) | Brand | 115 | 43 | $123,715 |
| Atorvastatin Calcium | Generic | 89 | 35 | $1,627 |
| Nano 2Nd Gen Pen Needle (Pen Needle, Diabetic) | Brand | 86 | 41 | $14,822 |
| Humalog Kwikpen U-100 (Insulin Lispro) | Brand | 79 | 33 | $164,588 |
| Ozempic (Semaglutide) | Brand | 67 | 26 | $123,625 |
Frequently asked questions
What is Dr. Kathy Joo's medical specialty?
Dr. Kathy Joo practices Endocrinology, Diabetes & Metabolism Physician in Temecula, CA.
Where does Dr. Kathy Joo practice?
Dr. Kathy Joo practices at 29645 Rancho California RD, Temecula, CA 925916200. Office phone: 9513081325.
What is Dr. Kathy Joo's NPI?
Dr. Kathy Joo's National Provider Identifier (NPI) is 1457318347, issued by NPPES.
Does Dr. Kathy Joo accept Medicare assignment?
Yes. Dr. Kathy Joo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kathy Joo commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.