Doctor profile · Federal record
Dr. Ariel Marks, M.D
Emergency Medicine Physician (CMS: Emergency Medicine) · Redwood City, CA
- NPI 1568552438
- Accepts Medicare
- MIPS 86.3 / 100 · 2023
- 32 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
170 Alameda de Las Pulgas
Redwood City, CA 940622751
(650) 367-5541 - Mailing address
-
2100 Powell St, Ste 400
Emeryville, CA 946081826
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- October 10, 2019
- Year of graduation
- 1994 — 32 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #A54588
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1568552438. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,022
Distinct HCPCS
10
Medicare allowed
$183,033
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 639 | 544 | $9 | |
99285 |
Emergency department visit with high level of medical decision making | 503 | 461 | $188 | |
71045 |
X-ray of chest, 1 view | 312 | 294 | $10 | |
99284 |
Emergency department visit with moderate level of medical decision making | 300 | 280 | $130 | |
99291 |
Critical care, first 30-74 minutes | 161 | 151 | $234 | |
73502 |
X-ray of hip, 2-3 views | 25 | 25 | $12 | |
99283 |
Emergency department visit with low level of medical decision making | 21 | 19 | $77 | |
73562 |
X-ray of knee, 3 views | 18 | 18 | $10 | |
G0168 |
Wound closure utilizing tissue adhesive(s) only | 18 | 17 | $15 | |
73030 |
X-ray of shoulder, minimum of 2 views | 14 | 14 | $10 |
In context: peer comparison
Among 5 peers in this city , average services per provider: 114. This provider delivers 18× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
453
Patients
437
Total drug cost
$2,790
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 81 | 78 | $256 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 72 | 70 | $355 |
| Ibuprofen | Generic | 69 | 68 | $216 |
| Cephalexin | Generic | 49 | 45 | $354 |
| Ondansetron Odt (Ondansetron) | Brand | 42 | 40 | $192 |
| Ciprofloxacin Hcl | Generic | 29 | 29 | $225 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 27 | 27 | $742 |
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 21 | 21 | $98 |
| Meclizine Hcl | Generic | 20 | 20 | $79 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 17 | 15 | $80 |
Hospital affiliations
Frequently asked questions
What is Dr. Ariel Marks's medical specialty?
Dr. Ariel Marks practices Emergency Medicine Physician in Redwood City, CA.
Where does Dr. Ariel Marks practice?
Dr. Ariel Marks practices at 170 Alameda de Las Pulgas, Redwood City, CA 940622751. Office phone: 6503675541.
What is Dr. Ariel Marks's NPI?
Dr. Ariel Marks's National Provider Identifier (NPI) is 1568552438, issued by NPPES.
Does Dr. Ariel Marks accept Medicare assignment?
Yes. Dr. Ariel Marks accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ariel Marks commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Emergency department visit with high level of medical decision making (HCPCS 99285); X-ray of chest, 1 view (HCPCS 71045). Source: CMS Medicare Physician & Other Practitioners file.