Dr. Mark N. Sadoff, M.D.
Neurology (Neurology Physician)
6010 Hidden Valley Rd Ste 200
Carlsbad, CA 92011
Who else practices at this address →
San Diego County includes primary care (1% of residents) and mental health (1% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- Wake Forest University School of Medicine (1979)
- Years since graduation
- 47
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 264
Licensed in California since 1980, according to the Medical Board of California. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 1979Medical school: Wake Forest University School of Medicine
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Neurology Physician primary
CA license G42818 (first issued 1980; current)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Tri-City Medical Center Oceanside, CA
Medical groups
- North County Neurology Associates Medical Group (47 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 264
- Services billed
- 2,243
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| Injection, onabotulinumtoxina, 1 unit | 2,400 | 11 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 483 | 83 |
| Needle measurement of electrical activity in arm or leg muscles, complete study | 193 | 152 |
| Hospital discharge day management, more than 30 minutes | 60 | 58 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 45 | 43 |
| Nerve conduction, 5-6 studies | 43 | 43 |
| Critical care, first 30-74 minutes | 39 | 36 |
| Nerve conduction, 7-8 studies | 36 | 36 |
| Nerve conduction, 9-10 studies | 31 | 31 |
| Nerve conduction, 11-12 studies | 27 | 26 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Payments from drug and device companies
In 2025, 11 companies reported 30 payments worth $657 in total to this clinician.
| AbbVie Inc. | $233 |
|---|---|
| Amgen Inc. | $156 |
| Amneal Pharmaceuticals LLC | $59.36 |
| Neurocrine Biosciences, Inc. | $50.17 |
| Pfizer Inc. | $37.43 |
| Janssen Biotech, Inc. | $30.37 |
| Sk Life Science, Inc. | $24.29 |
| UCB, Inc. | $21.16 |
| Food and Beverage | $657 |
|---|
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.