William Wirshing, M.D.
NPI 1265621601 · Psychiatry Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Wirshing, M.D. is a Psychiatry Physician provider in Los Angeles, CA (NPI 1265621601).
Provider details
- NPI number
- 1265621601
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G50986 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
18 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$21,925 across 25 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 (2)
- 4411 E Kings Canyon RdFresno, CA 93702-3604Phone: (559) 453-1008
- 1920 Marengo StLos Angeles, CA 90033Phone: (323) 276-6400
Registry dates
- Enumerated
- 2007-10-22
- Last updated
- 2019-01-03
Frequently asked questions
- What is William Wirshing's NPI number?
- William Wirshing's National Provider Identifier (NPI) is 1265621601, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Wirshing's specialty?
- William Wirshing is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is William Wirshing located?
- William Wirshing's practice location on file with NPPES is 1920 Marengo St, Los Angeles, CA 90033.
- What is William Wirshing's phone number?
- The practice phone number listed in the NPPES registry for William Wirshing is (323) 276-6400.
- Does William Wirshing accept Medicare?
- William Wirshing is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Wirshing's NPI active?
- Yes — William Wirshing's NPI (1265621601) is active in the NPPES registry as of the last update on 2019-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.