Sonia Nayyar, M.D.
NPI 1033401070 · Neurology Physician · Apple Valley, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sonia Nayyar, M.D. is a Neurology Physician provider in Apple Valley, CA (NPI 1033401070).
Provider details
- NPI number
- 1033401070
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A137071 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
810 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 262 | $18 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 246 | $127 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study95886 | 67 | $107 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 51 | $190 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 49 | $178 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Donepezil Hcl | 274 | 80 |
| Gabapentin | 274 | 81 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 133 | 37 |
| Memantine Hcl | 121 | 33 |
| Quetiapine Fumarate | 119 | 41 |
| Levetiracetam | 87 | 23 |
| Topiramate | 86 | 29 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,605 across 127 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
- 2011-05-10
- Last updated
- 2016-07-07
Frequently asked questions
- What is Sonia Nayyar's NPI number?
- Sonia Nayyar's National Provider Identifier (NPI) is 1033401070, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sonia Nayyar's specialty?
- Sonia Nayyar is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Sonia Nayyar located?
- Sonia Nayyar's practice location on file with NPPES is 18523 Corwin Rd, Apple Valley, CA 92307-2338.
- What is Sonia Nayyar's phone number?
- The practice phone number listed in the NPPES registry for Sonia Nayyar is (750) 946-3876.
- Does Sonia Nayyar accept Medicare?
- Sonia Nayyar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sonia Nayyar's NPI active?
- Yes — Sonia Nayyar's NPI (1033401070) is active in the NPPES registry as of the last update on 2016-07-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.