DR. JOHN A. SIEFERT (M.D.) – Emergency Medicine Physician, NPI 1124014162

DR. JOHN A. SIEFERT (M.D.) is a healthcare provider. based in Chula vista, California. specializing in Emergency Medicine Physician. They hold the professional credentials M.D.. They hold a License No. G68507 (CA). The NPI Number for DR. JOHN A. SIEFERT (M.D.) is 1124014162

Main info

Male
Name
DR. JOHN A. SIEFERT (M.D.)
NPI
1124014162
Phone
(619) 691-7290
Address
435 H ST
Enumeration Date
26 September 2005
Last Update Date
12 November 2024
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness75
Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for DR. JOHN A. SIEFERT (M.D.)

  • Scripps Mercy Hospital Chula Vista, 435, H Street, Chula Vista, San Diego County, California, 91911, United States

    CHULA VISTA, CA 919104307

    Phone: (619) 691-7290

    Type: Location

  • 827, J Avenue, Coronado, San Diego County, California, 92118, United States

    CORONADO, CA 921182414

    Phone: (619) 607-5112

    Type: Mailing

  • 34800 BOB WILSON DR

    SAN DIEGO, CA 921344307

    Phone: (619) 532-7427

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

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Medicare Enrollment & Revalidation

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Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

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Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 91910)

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Reviews

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Frequently asked questions

What number should I use to identify DR. JOHN A. SIEFERT (M.D.) for billing?
Administrative and clinical systems typically use NPI 1124014162 for DR. JOHN A. SIEFERT (M.D.).
Should I treat DR. JOHN A. SIEFERT (M.D.) as an active provider?
Patients and plans typically see DR. JOHN A. SIEFERT (M.D.) as active in the national extract.
How should patients interpret DR. JOHN A. SIEFERT (M.D.)'s specialty?
The extract shows Emergency Medicine Physician for DR. JOHN A. SIEFERT (M.D.). Clinical services aligned with this taxonomy classification.
Can patients visit DR. JOHN A. SIEFERT (M.D.) in Chula Vista, California?
For routing, start with Chula Vista, California for DR. JOHN A. SIEFERT (M.D.), then verify phone and hours locally.
Why is information missing for DR. JOHN A. SIEFERT (M.D.)?
Providers choose how much contact data to publish. Missing fields do not mean the profile is fake.

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