Doctor profile · Federal record
Dr. Brian Chavez, M.D.
Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Lake Forest, CA
- NPI 1215974969
- Accepts Medicare
- 26 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
23331 El Toro RD, Suite 102
Lake Forest, CA 926304891
(949) 916-9100
fax (949) 916-0091
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- July 9, 2007
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State license (1)
- California #A76077
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1215974969. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
21,656
Distinct HCPCS
10
Medicare allowed
$507,228
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 1,049 | 421 | $135 | |
36415 |
Insertion of needle into vein for collection of blood sample | 884 | 360 | $8 | |
80048 |
Blood test, basic group of blood chemicals (calcium, total) | 880 | 357 | $8 | |
84443 |
Blood test, thyroid stimulating hormone (tsh) | 875 | 359 | $16 | |
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 874 | 357 | $8 | |
80076 |
Liver function blood test panel | 864 | 356 | $8 | |
84439 |
Thyroxine (thyroid chemical), free | 864 | 358 | $9 | |
84480 |
Thyroid hormone, t3 measurement, total | 863 | 358 | $14 | |
82306 |
Vitamin d-3 level | 855 | 355 | $29 | |
83970 |
Parathormone (parathyroid hormone) level | 848 | 353 | $40 |
In context: peer comparison
Among 3 peers in Lake Forest Endocrinology, Diabetes & Metabolism Physician, average services per provider: 427. This provider delivers 51× the peer median.Open Payments
Industry payments received
All-time total
$2,367
Transactions
89
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 14 | $317.97 | |
| Lilly USA, LLC | 17 | $271.13 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 3 | $269.74 | |
| Novartis Pharmaceuticals Corporation | 12 | $212.01 | |
| Novo Nordisk INC | 10 | $184.97 | |
| CeQur Corporation | 1 | $169.77 | |
| Amgen INC. | 6 | $113.81 | |
| Sanofi-Aventis U.S. LLC | 5 | $98.20 | |
| Corcept Therapeutics | 3 | $81.98 | |
| Mannkind Corporation | 4 | $77.04 | |
| Embecta Corp. | 4 | $70.30 | |
| Xeris Pharmaceuticals, INC. | 3 | $69.58 | |
| Calliditas Therapeutics US INC. | 3 | $56.79 | |
| Verity Pharmaceuticals INC. | 2 | $43.20 | |
| Bayer Healthcare Pharmaceuticals INC. | 2 | $36.68 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,978
Patients
774
Total drug cost
$1,183,731
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 464 | 121 | $7,705 |
| Synthroid (Levothyroxine Sodium) | Brand | 304 | 70 | $29,636 |
| Atorvastatin Calcium | Generic | 294 | 82 | $3,388 |
| Trulicity (Dulaglutide) | Brand | 239 | 40 | $332,674 |
| Ozempic (Semaglutide) | Brand | 219 | 42 | $280,475 |
| Metformin Hcl ER (Metformin Hcl) | Brand | 217 | 67 | $3,037 |
| Metformin Hcl | Generic | 211 | 62 | $2,543 |
| Rosuvastatin Calcium | Generic | 178 | 52 | $5,614 |
| Ezetimibe | Generic | 175 | 46 | $8,818 |
| Jardiance (Empagliflozin) | Brand | 171 | 39 | $179,674 |
Frequently asked questions
What is Dr. Brian Chavez's medical specialty?
Dr. Brian Chavez practices Endocrinology, Diabetes & Metabolism Physician in Lake Forest, CA.
Where does Dr. Brian Chavez practice?
Dr. Brian Chavez practices at 23331 El Toro RD, Lake Forest, CA 926304891. Office phone: 9499169100.
What is Dr. Brian Chavez's NPI?
Dr. Brian Chavez's National Provider Identifier (NPI) is 1215974969, issued by NPPES.
Does Dr. Brian Chavez accept Medicare assignment?
Yes. Dr. Brian Chavez accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Brian Chavez commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Blood test, basic group of blood chemicals (calcium, total) (HCPCS 80048). Source: CMS Medicare Physician & Other Practitioners file.