Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Irina Jasper, MD

Sees patients in Pasadena, CA · California

Summary

Irina Jasper, MD (Internal Medicine) is enrolled with Medicare at 1 practice location in Pasadena, CA. NPI 1356421903. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Irina Jasper, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
May acceptAccepts Medicare assignment
33Years since medical school (graduated 1993)
FemaleGender (as listed)

Quick answers

Where does Irina Jasper see patients?
Medicare's clinician data lists 1 practice location in Pasadena, CA. Call before your visit to confirm the address.
What is Irina Jasper's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Irina Jasper accept Medicare assignment?
Medicare's clinician data says Irina Jasper may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
What is the phone number for Irina Jasper?
(626) 356-0340, as listed in official Medicare / NPI Registry data.
What is Irina Jasper's NPI number?
1356421903. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Irina Jasper is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Pasadena

Clinicians with the same Medicare primary specialty in Pasadena, CA — not a recommendation.

All internal medicine doctors in Pasadena →

Clinician information

CredentialMD
Graduation year1993
Gender (as listed)Female
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1356421903
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians