Doctor profile · Federal record
Dr. Aaron Clark, MD, PHD
Neurological Surgery Physician (CMS: Neurosurgery) · San Francisco, CA
- NPI 1518295815
- Accepts Medicare
- 18 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
400 Parnassus Ave, 3Rd Floor
San Francisco, CA 941432202
(866) 817-7463
Credentials & registration
- NPI registered
- November 2009 — 17 yrs on file
- Profile last updated
- February 26, 2016
- Year of graduation
- 2008 — 18 yrs since
- Specialty taxonomy
- 207T00000X — NUCC code
- State license (1)
- California #A112222
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1518295815. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,651
Distinct HCPCS
10
Medicare allowed
$602,596
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
22614 |
Fusion of additional segment of spine | 393 | 66 | $289 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 219 | 219 | $149 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 180 | 157 | $74 | |
63048 |
Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment | 129 | 63 | $174 | |
22853 |
Insertion of cage or mesh device to spine bone and disc space during spine fusion | 109 | 74 | $262 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 86 | 84 | $159 | |
63047 |
Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment | 72 | 72 | $902 | |
22633 |
Fusion of spine in lower back with partial removal of spine bone and disc | 54 | 54 | $1,911 | |
63052 |
Partial removal of bone of single segment of spine in lower back with release of spinal cord and/or nerves during fusion of spine in lower back | 50 | 50 | $265 | |
20939 |
Aspiration of bone marrow for spine bone graft | 44 | 44 | $75 |
In context: peer comparison
Among 17 peers in this city , average services per provider: 51. This provider delivers 32× the peer median.Open Payments
Industry payments received
All-time total
$27,025
Transactions
46
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Carlsmed, Inc. | 13 | $14,818.16 | |
| Alphatec Spine, Inc | 10 | $11,022.34 | |
| Medtronic, Inc. | 21 | $1,014.82 | |
| icotec Medical Inc. | 1 | $120.06 | |
| SI-BONE, INC. | 1 | $49.28 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
195
Patients
83
Total drug cost
$11,782
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Baclofen | Generic | 52 | 33 | $947 |
| Gabapentin | Generic | 51 | 33 | $1,057 |
| Naloxone Hcl | Generic | 17 | 17 | $1,470 |
| Eliquis (Apixaban) | Brand | 13 | 0 | $7,400 |
| Metoprolol Succinate | Generic | 13 | 0 | $218 |
| Torsemide | Generic | 13 | 0 | $205 |
| Donepezil Hcl | Generic | 12 | 0 | $166 |
| Escitalopram Oxalate | Generic | 12 | 0 | $189 |
| Simvastatin | Generic | 12 | 0 | $130 |
Hospital affiliations
Frequently asked questions
What is Dr. Aaron Clark's medical specialty?
Dr. Aaron Clark practices Neurological Surgery Physician in San Francisco, CA.
Where does Dr. Aaron Clark practice?
Dr. Aaron Clark practices at 400 Parnassus Ave, San Francisco, CA 941432202. Office phone: 8668177463.
What is Dr. Aaron Clark's NPI?
Dr. Aaron Clark's National Provider Identifier (NPI) is 1518295815, issued by NPPES.
Does Dr. Aaron Clark accept Medicare assignment?
Yes. Dr. Aaron Clark accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Aaron Clark commonly perform?
Top Medicare-reported procedures in 2023: Fusion of additional segment of spine (HCPCS 22614); New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.