Cynthia Spier, MD
NPI 1801955471 · Neurology Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cynthia Spier, MD is a Neurology Physician provider in San Diego, CA (NPI 1801955471).
Provider details
- NPI number
- 1801955471
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A67781 (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
19 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 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levetiracetam | 126 | 57 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 86 | 34 |
| Gabapentin | 81 | 39 |
| Baclofen | 78 | 25 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa Er | 50 | 20 |
| Sumatriptan Succinate | 49 | — |
| Lamotrigine | 49 | 17 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$241 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
- 2006-12-08
- Last updated
- 2021-11-30
Frequently asked questions
- What is Cynthia Spier's NPI number?
- Cynthia Spier's National Provider Identifier (NPI) is 1801955471, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cynthia Spier's specialty?
- Cynthia Spier is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Cynthia Spier located?
- Cynthia Spier's practice location on file with NPPES is 4647 Zion Ave, San Diego, CA 92120-2507.
- What is Cynthia Spier's phone number?
- The practice phone number listed in the NPPES registry for Cynthia Spier is (619) 528-5000.
- Does Cynthia Spier accept Medicare?
- Cynthia Spier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cynthia Spier's NPI active?
- Yes — Cynthia Spier's NPI (1801955471) is active in the NPPES registry as of the last update on 2021-11-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.