Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. John None Lin, DO

Individual provider Sleep Medicine (Internal Medicine) Physician · NPI 1780328203

Dr. John None Lin, DO is a Sleep Medicine (Internal Medicine) Physician in Concord, California. Licensed in California. Registered with an NPI since 2022.

Licensed in
CA
In the registry since
2022
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

2182 E St
Concord, CA 94520-2012
Phone: (925) 310-8978
Fax: (925) 310-8978
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Sleep Medicine (Internal Medicine) Physician (primary) Taxonomy 207RS0012X · Licence 20A25418 (CA)

Record details

NPI number1780328203
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 21, 2022
Last updated in NPPESJuly 22, 2026
Certification dateJuly 22, 2026
Mailing address2182 East St, Concord, CA 94520-2012

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