Dr. Michael P. Weinstein, M.D.
Spine Surgery (Orthopaedic Surgery of the Spine Physician)
- Medicare participating
At a glance
- Medical school
- Perelman School of Med at the University of Pennsylvania (1980)
- Years since graduation
- 46
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 508
Licensed in California since 1985, 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
- 1980Medical school: Perelman School of Med at the University of Pennsylvania
- 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
-
Orthopaedic Surgery of the Spine Physician primary
CA license G54621 (first issued 1985; current) -
Orthopaedic Surgery Physician
CA license G54621 (first issued 1985; current)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Hoag Memorial Hospital Presbyterian Newport Beach, CA
- Hoag Orthopedic Institute Irvine, CA
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
- 508
- Services billed
- 15,156
- Patients’ average age
- 76
| Service | Times | Patients |
|---|---|---|
| Hyaluronan or derivative, trivisc, for intra-articular injection, 1 mg | 11,076 | 92 |
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 873 | 110 |
| Established patient office or other outpatient visit, 20-29 minutes | 807 | 356 |
| Aspiration and/or injection of fluid large joint using ultrasound guidance | 372 | 137 |
| Established patient office or other outpatient visit, 30-39 minutes | 272 | 164 |
| X-ray of lower and sacral spine, minimum of 4 views | 114 | 112 |
| New patient office or other outpatient visit, 45-59 minutes | 112 | 112 |
| X-ray of lower and sacral spine, 2-3 views | 79 | 61 |
| X-ray of knee, 4 or more views | 75 | 61 |
| New patient office or other outpatient visit, 30-44 minutes | 51 | 51 |
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.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Meloxicam Other prescribers in Newport Beach, CA | 121 |
| Gabapentin Other prescribers in Newport Beach, CA | 68 |
| Tramadol Hcl Other prescribers in Newport Beach, CA | 63 |
| Hydrocodone-Acetaminophen (hydrocodone/acetaminophen) Other prescribers in Newport Beach, CA | 49 |
| Celecoxib Other prescribers in Newport Beach, CA | 37 |
| Methylprednisolone Other prescribers in Newport Beach, CA | 37 |
| Cyclobenzaprine Hcl Other prescribers in Newport Beach, CA | 16 |
| Naproxen Other prescribers in Newport Beach, CA | 13 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 1 companies reported 1 payments worth $3,161 in total to this clinician.
| Johnson & Johnson Health Care Systems Inc. | $3,161 |
|---|
| Debt forgiveness | $3,161 |
|---|
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Johnson & Johnson Health Care Systems Inc. Sep 15, 2025 | Debt forgiveness in-kind | $3,161 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
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.