Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. STEPHEN ROBERT JOHN DDS
NPI 1558790915
Dentist - Periodontics in San Mateo, CA

Q: What is Stephen John's NPI number?

The NPI number for Stephen John is 1558790915. It was assigned to this individual provider in the NPPES registry on November 6, 2013.

Q: What is Stephen John's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Periodontics, with taxonomy code 1223P0300X.

Q: Is Stephen John enrolled in Medicare?

No. Stephen John has opted out of Medicare through May 21, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Q: When was this NPI record last updated?

The NPPES record for Stephen John was last updated on September 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since November 06, 2013Opted out of Medicare · through May 21, 2027

205 DE ANZA BLVD # 41, SAN MATEO, CA 94402(650) 430-0186 Get Directions Write a Review

NPPES record last updated: September 30, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 30, 2026, Oct 4, 2023 (2 updates tracked since 2023).

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About Dr. Stephen Robert John Dds NPPES

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

DR. STEPHEN ROBERT JOHN DDS (NPI 1558790915) is an individual periodontics provider in San Mateo, California, licensed in California (32858) and active in the NPI registry since November 2013. He has opted out of Medicare through May 21, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1558790915

Entity TypeIndividualMale

Primary Taxonomy1223P0300X

Provider Legal NameDR. STEPHEN ROBERT JOHNCredential: DDS

Location Address205 DE ANZA BLVD # 41San Mateo, CA 94402-3989

Mailing Address205 De Anza Blvd. #41San Mateo, CA 94402 · (650) 430-0186

Phone(650) 430-0186

Sole ProprietorYes

Enumeration DateNovember 6, 2013

Last NPPES UpdateSeptember 30, 20262 updates tracked since enumeration

NPPES CertifiedSeptember 30, 2026

✔ NPI 1558790915 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyDentist · PeriodonticsDental Providers

Taxonomy Code1223P0300X

License✔ Licensed in CA · 32858

Definition

That specialty of dentistry which encompasses the prevention, diagnosis and treatment of diseases of the supporting and surrounding tissues of the teeth or their substitutes and the maintenance of the health, function and esthetics of these structures and tissues.

Also ListedDentistTaxonomy 122300000X · License 32858 (CA)

205 DE ANZA BLVD # 41, San Mateo, CA 94402

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Stephen Robert John Dds has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from May 21, 2019 through May 21, 2027.

Opt-Out Effective DateMay 21, 2019

Opt-Out In Effect ThroughMay 21, 2027Opt-out affidavits renew automatically every two years unless cancelled

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94402 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

$104.51 typical visit price

range $69.00 – $202.35

Typical copayment $26.12 (range $17.25 – $50.58)

Most-billed visit code 99203

Established Patient

$84.91 typical visit price

range $23.44 – $166.46

Typical copayment $21.22 (range $5.86 – $41.61)

Most-billed visit code 99213

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

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Stephen John's NPI number?

The NPI number for Stephen John is 1558790915. It was assigned to this individual provider in the NPPES registry on November 6, 2013.

Where is Stephen John located?

Stephen John practices at 205 De Anza Blvd # 41, San Mateo, CA 94402. The listed phone number is (650) 430-0186.

What is Stephen John's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Periodontics, with taxonomy code 1223P0300X.

Is Stephen John enrolled in Medicare?

No. Stephen John has opted out of Medicare through May 21, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Stephen John was last updated on September 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.