Ashish Nanda, MD
NPI 1598980518 · Vascular Neurology Physician · Fullerton, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ashish Nanda, MD is a Vascular Neurology Physician provider in Fullerton, CA (NPI 1598980518).
Provider details
- NPI number
- 1598980518
- Entity type
- Individual
- Primary specialty
- Vascular Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 35.090637 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
274 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 | 120 | $217 |
| Insertion of Tube Into Brain Artery for Diagnosis Or Treatment With Review By Radiologist36226 | 36 | $253 |
| Insertion of Tube Into Internal Neck Artery for Diagnosis Or Treatment With Review By Radiologist36224 | 31 | $393 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 21 | $179 |
| Review By Radiologist of Image for Insertion of Material to Block Blood Flow75894 | 19 | $71 |
| Imaging of Blood Vessel75898 | 19 | $91 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$33,359 across 44 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)
- 2420 Sonoma StreetRedding, CA 96001-3033Phone: (530) 999-2533Fax: (530) 999-2532
Registry dates
- Enumerated
- 2007-04-16
- Last updated
- 2024-02-21
- Certified
- 2024-02-21
Frequently asked questions
- What is Ashish Nanda's NPI number?
- Ashish Nanda's National Provider Identifier (NPI) is 1598980518, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ashish Nanda's specialty?
- Ashish Nanda is listed in the NPPES registry with a primary specialty of Vascular Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Ashish Nanda located?
- Ashish Nanda's practice location on file with NPPES is 101 E Valencia Mesa Dr, Fullerton, CA 92835-3809.
- What is Ashish Nanda's phone number?
- The practice phone number listed in the NPPES registry for Ashish Nanda is (714) 871-3280.
- Does Ashish Nanda accept Medicare?
- Ashish Nanda is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ashish Nanda's NPI active?
- Yes — Ashish Nanda's NPI (1598980518) is active in the NPPES registry as of the last update on 2024-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.