Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. JOHN NONE LIN DO
NPI 1780328203
Internal Medicine - Sleep Medicine in Concord, CA

Q: What is John Lin's NPI number?

The NPI number for John Lin is 1780328203. It was assigned to this individual provider in the NPPES registry on April 21, 2022.

Q: What is John Lin's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.

Q: When was this NPI record last updated?

The NPPES record for John Lin was last updated on July 22, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since April 21, 2022PECOS Enrolled

2182 EAST ST, CONCORD, CA 94520(925) 310-8978(925) 310-8978 Get Directions Write a Review

NPPES record last updated: July 22, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 22, 2026, Apr 21, 2022 (2 updates tracked since 2022).

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About Dr. John None Lin Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN NONE LIN DO (NPI 1780328203) is an individual sleep medicine provider in Concord, California, licensed in California (20A25418) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1780328203

Entity TypeIndividualMale

Primary Taxonomy207RS0012X

Provider Legal NameDR. JOHN NONE LINCredential: DO

Location Address2182 EAST STConcord, CA 94520-2012

Mailing Address2182 East StConcord, CA 94520-2012 · (925) 310-8978 · Fax (925) 310-8978

Phone(925) 310-8978

Fax(925) 310-8978

Sole ProprietorNo

Enumeration DateApril 21, 2022

Last NPPES UpdateJuly 22, 20262 updates tracked since enumeration

NPPES CertifiedJuly 22, 2026

✔ NPI 1780328203 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Sleep MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RS0012X

License✔ Licensed in CA · 20A25418

Definition

An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.

2182 EAST ST, Concord, CA 94520

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. John None Lin Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94520 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$153.83 typical visit price

range $69.00 – $202.35

Typical copayment $38.45 (range $17.25 – $50.58)

Most-billed visit code 99204

Established Patient

$119.48 typical visit price

range $23.44 – $166.46

Typical copayment $29.87 (range $5.86 – $41.61)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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