Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mr. John W Birsner Jr., MD

Individual provider Obstetrics & Gynecology Physician · NPI 1457443525

Mr. John W Birsner Jr., MD is an Obstetrics & Gynecology Physician in Lancaster, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1600 W Avenue J
Lancaster, CA 93534-2814
Phone: (661) 943-4236
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence C37218 (CA)

Record details

NPI number1457443525
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 28, 2006
Last updated in NPPESApril 4, 2022
Certification dateMarch 20, 2022

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