Alexander Michael Welzig, PA-C
Physician Assistant · Chino Hills, CA
Alexander Michael Welzig, PA-C is a physician assistant with a practice address in Chino Hills, California, and NPI 1538595509, issued on Sep 22, 2013. Check the license (California PA23237, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alexander Michael Welzig
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA23237 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2557 Chino Hills Pkwy, Chino Hills, CA 91709
- Phone
- (909) 343-4334
- Enumerated
- Sep 22, 2013
- Record last updated
- Jan 8, 2014 (not updated in 12 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Verify Alexander Michael Welzig in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA23237Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $106.30
1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Alexander Michael Welzig among 14,451 physician assistant records in California
Alexander Michael Welzig, PA-C is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 35% of them.
- NPI issued2013 · 35% of these records are older, 62% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2014 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 physician assistant records list a practice address in Chino Hills
They are 22 of the 774 NPPES records with a practice address in Chino Hills, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Chino Hills → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Stephanie Chamani, PA-CChino Hills, CA 917091104949858
- Ivy Chow, PA-CChino Hills, CA 917091235533670
- Pamela Farah, PA-CChino Hills, CA 917091972088763
- Jennifer Holman, PA-CChino Hills, CA 917091942676663
- Esther HwangChino Hills, CA 917091851696595
- Tiffany Katuls, PA-CChino Hills, CA 917091982911012
- Elizabeth LeeChino Hills, CA 917091407515224
- Jennifer Lyons, PA-CChino Hills, CA 917091730215401
Common questions
What is Alexander Michael Welzig, PA-C's NPI number?
Alexander Michael Welzig, PA-C's National Provider Identifier (NPI) is 1538595509, issued on Sep 22, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Michael Welzig, PA-C located?
The NPPES record lists a practice address at 2557 Chino Hills Pkwy, Chino Hills, CA, 91709. Phone: (909) 343-4334. Providers update this record themselves, so call before visiting.
How can I verify Alexander Michael Welzig, PA-C's license?
NPPES lists California license number PA23237, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.