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

J Mario V Alonso Jr Inc

Organization Neurology Physician · NPI 1538253430

J Mario V Alonso Jr Inc provides Neurology Physician services in Saint Louis, Missouri. Licensed in Missouri. Registered with an NPI since 2006.

Licensed in
MO
In the registry since
2006
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

2716 Telegraph Rd Ste 105
Saint Louis, MO 63125-4078 Not confirmed with CMS for 14 years — call before visiting
Phone: (314) 487-3155
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence 106036 (MO)

Record details

NPI number1538253430
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official James Alonso — President · (314) 487-3155
NPI enumeratedOctober 3, 2006
Last updated in NPPESJanuary 4, 2012
Mailing address2716 Telegraph Rd, Suite 105, Saint Louis, MO 63125-4078

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