Christopher Wiesner, M.D.
NPI 1821012063 · Emergency Medicine Physician · La Jolla, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Wiesner, M.D. is a Emergency Medicine Physician provider in La Jolla, CA (NPI 1821012063).
Provider details
- NPI number
- 1821012063
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A88882 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
860 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 282 | $172 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 244 | $8 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 141 | $119 |
| X-Ray of Chest, 1 View71045 | 96 | $9 |
| Critical Care, First 30-74 Minutes99291 | 36 | $213 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 34 | $70 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetron Hcl | 47 | 47 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 32 | 32 |
| Cefuroxime Axetilbrand: Cefuroxime | 26 | 26 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 14 | 13 |
| Cephalexin | 13 | 12 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 12 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-27
- Last updated
- 2013-12-16
Frequently asked questions
- What is Christopher Wiesner's NPI number?
- Christopher Wiesner's National Provider Identifier (NPI) is 1821012063, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Wiesner's specialty?
- Christopher Wiesner is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Wiesner located?
- Christopher Wiesner's practice location on file with NPPES is 9888 Genesee Ave, La Jolla, CA 92037-1205.
- What is Christopher Wiesner's phone number?
- The practice phone number listed in the NPPES registry for Christopher Wiesner is (858) 626-6150.
- Does Christopher Wiesner accept Medicare?
- Christopher Wiesner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Wiesner's NPI active?
- Yes — Christopher Wiesner's NPI (1821012063) is active in the NPPES registry as of the last update on 2013-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.