Doctor profile · Federal record
Dr. Brian Hertz, MD
Family Medicine Physician (CMS: Family Practice) · Family Medicine Physician · San Rafael, CA
- NPI 1831273812
- Accepts Medicare
- 42 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
99 Montecillo RD
San Rafael, CA 949033308
(415) 444-2000 - Additional location
-
859 Old County RD
Waitsfield, VT 056736221
(802) 496-3838 - Mailing address
-
1800 Harrison St Fl 7
Oakland, CA 946123429
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- May 12, 2022
- Year of graduation
- 1984 — 42 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State licenses (2)
- California #G86565 · Vermont #042-0015837
- Medicaid
- CA #00G865650
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1831273812. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
243
Distinct HCPCS
2
Medicare allowed
$18,412
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 195 | 164 | $64 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 48 | 48 | $126 |
In context: peer comparison
Among 10 peers in San Rafael Family Medicine Physician, average services per provider: 139. This provider delivers 1.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
469
Patients
213
Total drug cost
$9,694
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 63 | 29 | $1,189 |
| Omeprazole | Generic | 47 | 19 | $807 |
| Amlodipine Besylate | Generic | 45 | 23 | $662 |
| Gabapentin | Generic | 38 | 12 | $946 |
| Fluticasone Propionate | Generic | 33 | 23 | $599 |
| Lisinopril | Generic | 33 | 21 | $423 |
| Losartan Potassium | Generic | 32 | 17 | $445 |
| Adacel Tdap (Diph,Pertuss(Acell),Tet Vac/Pf) | Brand | 31 | 31 | $1,611 |
| Levothyroxine Sodium | Generic | 30 | 14 | $544 |
| Tamsulosin Hcl | Generic | 25 | 12 | $789 |
Hospital affiliations
Frequently asked questions
What is Dr. Brian Hertz's medical specialty?
Dr. Brian Hertz practices Family Medicine Physician in San Rafael, CA.
Where does Dr. Brian Hertz practice?
Dr. Brian Hertz practices at 99 Montecillo RD, San Rafael, CA 949033308. Office phone: 4154442000.
What is Dr. Brian Hertz's NPI?
Dr. Brian Hertz's National Provider Identifier (NPI) is 1831273812, issued by NPPES.
Does Dr. Brian Hertz accept Medicare assignment?
Yes. Dr. Brian Hertz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Brian Hertz commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.