Oana Spataru, M.D.
NPI 1518153824 · Vascular Neurology Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Oana Spataru, M.D. is a Vascular Neurology Physician provider in Walnut Creek, CA (NPI 1518153824).
Provider details
- NPI number
- 1518153824
- Entity type
- Individual
- Primary specialty
- Vascular Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A116468 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Hospitals
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
906 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 404 | $230 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 194 | $228 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 187 | $88 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 97 | $134 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 24 | $197 |
Typical Medicare-allowed amounts for these services range $88–$230 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levetiracetam | 104 | 25 |
| Apixabanbrand: Eliquis | 94 | 14 |
| Lacosamide | 75 | 11 |
| Gabapentin | 72 | 17 |
| Atorvastatin Calcium | 58 | 15 |
| Amlodipine Besylate | 56 | 15 |
| Baclofen | 49 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$320 across 9 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
Additional practice locations (1)
- 1100 Van Ness AveSan Francisco, CA 94109-6978Phone: (415) 600-5760Fax: (415) 369-1208
Registry dates
- Enumerated
- 2007-09-20
- Last updated
- 2025-08-05
- Certified
- 2025-08-05
Frequently asked questions
- What is Oana Spataru's NPI number?
- Oana Spataru's National Provider Identifier (NPI) is 1518153824, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Oana Spataru's specialty?
- Oana Spataru is listed in the NPPES registry with a primary specialty of Vascular Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Oana Spataru located?
- Oana Spataru's practice location on file with NPPES is 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598-3194.
- What is Oana Spataru's phone number?
- The practice phone number listed in the NPPES registry for Oana Spataru is (925) 939-3000.
- Does Oana Spataru accept Medicare?
- Oana Spataru is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Oana Spataru's NPI active?
- Yes — Oana Spataru's NPI (1518153824) is active in the NPPES registry as of the last update on 2025-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.