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Internal Medicine

Gregor Paronian, MD

Works at hospitals in Pasadena, CA · California

Summary

Gregor Paronian, MD (Internal Medicine) is listed by Medicare at 1 hospital in Pasadena, CA. NPI 1366627945. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Gregor Paronian, 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
YesAccepts Medicare assignment
YesOffers telehealth
19Years since medical school (graduated 2007)
MaleGender (as listed)
Southern California Internists Medical GroupGroup practice

Quick answers

Which hospitals does Gregor Paronian work at?
Medicare's official clinician data lists Gregor Paronian at 1 hospital: Huntington Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Gregor Paronian see patients?
Medicare's clinician data lists 1 practice location in Pasadena, CA. Call before your visit to confirm the address.
What is Gregor Paronian's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Gregor Paronian accept Medicare assignment?
Yes. Medicare's clinician data says Gregor Paronian accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Gregor Paronian offer telehealth?
Medicare's clinician data says Gregor Paronian offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Gregor Paronian?
(626) 696-3607, as listed in official Medicare / NPI Registry data.
What is Gregor Paronian's NPI number?
1366627945. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Gregor Paronian works

Medicare's Facility Affiliation Data lists Gregor Paronian at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

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

Group practices

Medicare enrollment lists Gregor Paronian as a member of this group (CMS data updated 2026-10-02).

  • Southern California Internists Medical Group3 clinicians in the group

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 year2007
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1366627945
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians