Mary Umahi Obasi Olomu, MD
Internal Medicine · Stanford
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- Not verified
- Not the same as out of network.
- Office
- 1
Offices
1 location
Plan participation
Not verified
We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Dr. Olomu’s office at (650) 723-2300 to ask if they take your plan before you enroll.
California Medical Board record
Licence A185215 · Current
Licensed to practise in California · since 2023 · expires 2027-05-31 · University of California, Davis School of Medicine.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
School, training and certification
What this clinician told their state board, medical school and everything before it. Only some states publish this, so nothing here means the state does not say, not that there was no training or certification.
Specialty certification
- American Board of Internal Medicine - Internal Medicine
Drugs they prescribed that Part D paid
$25,693
Pharmacies billed $25,693 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
47 generic and 11 brand-name prescriptions · $25,693 in drug cost.
Part D prescriptions only. The opioid rate is opioid prescriptions as a share of all this clinician's Part D prescriptions; surgeons and pain specialists run higher than others, so it is shown against the same specialty.
Year by year
| 2024 | 58 | 20 | None | 19% | $25,693 |
| 2023 | 49 | 14 | None | 33% | $24,904 |
| 2022 | 36 | 19 | None | None | $2,789 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
Money from drug and device companies
$115 in 2025
A payment is not proof that care is biased.
| AstraZeneca Pharmaceuticals LP | Enhertu | $115 | 1 payment
|
See the published payment
| AstraZeneca Pharmaceuticals LP | Meals · 2025-11-11 | Enhertu | $115 |
Professional record
- NPI
- 1982117628
- Licence
- CA A185215California A185215: Current · expires 2027-05-31
More record details
- Sole proprietor
- No
- Taxonomy
- Internal medicine (207R00000X)
- Mailing address
- 269 Campus Dr # Mc5151, Stanford, CA, 94305
- NPI first listed
- 2017-11-15
- NPI last updated
- 2026-01-14
- NPI record certified
- 2026-01-14
This is when the NPI record was last certified, not a medical board exam.