Doctor profile · Federal record
Dr. Julia Marx, MD
Family Medicine Physician (CMS: Family Practice) · Los Altos, CA
- NPI 1316039183
- Accepts Medicare
- 31 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
370 Distel Cir
Los Altos, CA 940221404
(209) 603-8524 - Mailing address
-
2350 W El Camino Real, 2Nd Floor
Mountain View, CA 940406201
Credentials & registration
- NPI registered
- September 2006 — 20 yrs on file
- Profile last updated
- December 15, 2011
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- California #A61863
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1316039183. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
438
Distinct HCPCS
8
Medicare allowed
$57,801
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 173 | 124 | $111 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 100 | 100 | $160 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 64 | 52 | $154 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 33 | 21 | $216 | |
G0008 |
Administration of influenza virus vaccine | 23 | 23 | $38 | |
90694 |
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 18 | 18 | $75 | |
G0009 |
Administration of pneumococcal vaccine | 15 | 15 | $35 | |
90671 |
Pneumococcal conjugate vaccine, 15 valent (pcv15), for intramuscular use | 12 | 12 | $241 |
In context: peer comparison
Among 10 peers in this city , average services per provider: 53. This provider delivers 8.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,181
Patients
298
Total drug cost
$62,440
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 271 | 72 | $3,703 |
| Amlodipine Besylate | Generic | 109 | 27 | $731 |
| Losartan Potassium | Generic | 109 | 27 | $1,173 |
| Lisinopril | Generic | 86 | 22 | $995 |
| Alendronate Sodium | Generic | 83 | 25 | $1,238 |
| Levothyroxine Sodium | Generic | 81 | 20 | $1,473 |
| Gabapentin | Generic | 76 | 20 | $2,340 |
| Omeprazole | Generic | 59 | 17 | $1,369 |
| Escitalopram Oxalate | Generic | 55 | 14 | $1,065 |
| Hydrochlorothiazide | Generic | 52 | 13 | $264 |
Frequently asked questions
What is Dr. Julia Marx's medical specialty?
Dr. Julia Marx practices Family Medicine Physician in Los Altos, CA.
Where does Dr. Julia Marx practice?
Dr. Julia Marx practices at 370 Distel Cir, Los Altos, CA 940221404. Office phone: 2096038524.
What is Dr. Julia Marx's NPI?
Dr. Julia Marx's National Provider Identifier (NPI) is 1316039183, issued by NPPES.
Does Dr. Julia Marx accept Medicare assignment?
Yes. Dr. Julia Marx accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Julia Marx 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); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.