Michael Oh, M.D.
NPI 1972763555 · Neurology Physician · Ontario, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Oh, M.D. is a Neurology Physician provider in Ontario, CA (NPI 1972763555).
Provider details
- NPI number
- 1972763555
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A123554 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
18 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 50 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 234 | 84 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 201 | 66 |
| Levetiracetam | 142 | 52 |
| Sumatriptan Succinate | 91 | 14 |
| Donepezil Hcl | 81 | 26 |
| Naratriptan Hcl | 68 | 13 |
| Rizatriptan Benzoatebrand: Rizatriptan | 67 | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$178 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-16
- Last updated
- 2021-12-08
- Certified
- 2020-08-03
Frequently asked questions
- What is Michael Oh's NPI number?
- Michael Oh's National Provider Identifier (NPI) is 1972763555, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Oh's specialty?
- Michael Oh is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Oh located?
- Michael Oh's practice location on file with NPPES is 2295 S Vineyard Ave Bldg D, Ontario, CA 91761-7925.
- What is Michael Oh's phone number?
- The practice phone number listed in the NPPES registry for Michael Oh is (888) 750-0036.
- Does Michael Oh accept Medicare?
- Michael Oh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Oh's NPI active?
- Yes — Michael Oh's NPI (1972763555) is active in the NPPES registry as of the last update on 2021-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.