Benjamin Wiederhold, M.D.
NPI 1609190404 · Emergency Medicine Physician · Oakland, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Benjamin Wiederhold, M.D. is a Emergency Medicine Physician provider in Oakland, CA (NPI 1609190404).
Provider details
- NPI number
- 1609190404
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A109950 (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
16 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
1,079 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 | 540 | $168 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 223 | $8 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 167 | $116 |
| Critical Care, First 30-74 Minutes99291 | 80 | $206 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 40 | $68 |
| Emergency Department Visit With Straightforward Medical Decision Making99282 | 29 | $40 |
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 |
|---|---|---|
| Cephalexin | 36 | 36 |
| Famotidine | 20 | — |
| Olanzapinebrand: Olanzapine Odt | 18 | — |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 15 | 15 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 14 | 13 |
| Ibuprofen | 11 | 11 |
| Naproxen | 11 | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-03-23
- Last updated
- 2010-03-23
Frequently asked questions
- What is Benjamin Wiederhold's NPI number?
- Benjamin Wiederhold's National Provider Identifier (NPI) is 1609190404, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Benjamin Wiederhold's specialty?
- Benjamin Wiederhold is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Benjamin Wiederhold located?
- Benjamin Wiederhold's practice location on file with NPPES is 1411 E 31st St, Oakland, CA 94602-1018.
- What is Benjamin Wiederhold's phone number?
- The practice phone number listed in the NPPES registry for Benjamin Wiederhold is (510) 437-4800.
- Does Benjamin Wiederhold accept Medicare?
- Benjamin Wiederhold is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Benjamin Wiederhold's NPI active?
- Yes — Benjamin Wiederhold's NPI (1609190404) is active in the NPPES registry as of the last update on 2010-03-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.