Spencer William Preston Drotman, M.D.
NPI 1578906665ActiveIndividual· Anesthesiology· Greenbrae, CA
Anesthesiology (M.D.) in Greenbrae, California, trained at Georgetown University School of Medicine (class of 2013). Medicare paid $64,384 for services to 278 patients in 2024. Edwards Lifesciences Corporation was the largest of 3 companies reporting payments in 2025, $485.99 in all, mostly food and beverage.
Overview
| NPI | 1578906665 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 9, 2013 |
| Last updated in NPPES | Apr 8, 2020 |
| Certified by provider | Apr 8, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | A156562 | CA |
| Anesthesiology | 207L00000X | MD463943 | PA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Anesthesiology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 278 |
|---|---|
| Services billed | 479 across 75 procedure codes |
| Paid by Medicare | $64,384 |
Education and affiliations
| Medical school | Georgetown University School of Medicine |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Anesthesiology |
Medical group
- Anesthesiology Consultants of MarinGreenbrae, CA · 32 clinicians
Hospital affiliation
- Marinhealth Medical CenterGreenbrae, CA
Industry payments (Open Payments)
- 2025$485.99 · 5 payments from 3 companies
- 2024$19.96 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Edwards Lifesciences Corporation | $284.92 | 3 |
| Ethicon US, LLC | $101.52 | 1 |
| Fisher & Paykel Healthcare Inc | $99.55 | 1 |
What the 2025 payments were for
- Food and Beverage$256.05 · 4 payments
- Travel and Lodging$229.94 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 48 anesthesiologists in Greenbrae · All anesthesiologists in California