Alexander Welzig, PA-C
NPI 1538595509 · Physician Assistant · Chino Hills, CA
Alexander Welzig, PA-C is a Physician Assistant provider in Chino Hills, CA (NPI 1538595509).
Provider details
- NPI number
- 1538595509
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- PA23237 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
12 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$106 across 1 record (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
- 2013-09-22
- Last updated
- 2014-01-08
Frequently asked questions
- What is Alexander Welzig's NPI number?
- Alexander Welzig's National Provider Identifier (NPI) is 1538595509, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Welzig's specialty?
- Alexander Welzig is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alexander Welzig located?
- Alexander Welzig's practice location on file with NPPES is 2557 Chino Hills Pkwy, Chino Hills, CA 91709-5103.
- What is Alexander Welzig's phone number?
- The practice phone number listed in the NPPES registry for Alexander Welzig is (909) 343-4334.
- Is Alexander Welzig's NPI active?
- Yes — Alexander Welzig's NPI (1538595509) is active in the NPPES registry as of the last update on 2014-01-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.