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

Internal Medicine

Ian T. Crumm, MD

Works at hospitals in Los Angeles, CA · Santa Monica, CA · California

Summary

Ian T. Crumm, MD (Internal Medicine) is listed by Medicare at 2 hospitals in Los Angeles, CA and Santa Monica, CA. NPI 1700407459. 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 Ian T. Crumm, 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
6Years since medical school (graduated 2020)
MaleGender (as listed)
The Regents of the University of CaliforniaGroup practice (+1 more)

Quick answers

Which hospitals does Ian T. Crumm work at?
Medicare's official clinician data lists Ian T. Crumm at 2 hospitals: Ronald Reagan UCLA Medical Center and Santa Monica - UCLA Medical Center & Orthopaedic Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Ian T. Crumm see patients?
Medicare's clinician data lists 6 practice locations, including Santa Monica, CA, Marina Del Rey, CA and Woodland Hills, CA. Call before your visit to confirm the address.
What is Ian T. Crumm's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Pediatric Medicine.
Does Ian T. Crumm accept Medicare assignment?
Yes. Medicare's clinician data says Ian T. Crumm 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 Ian T. Crumm offer telehealth?
Medicare's clinician data says Ian T. Crumm offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Ian T. Crumm?
(310) 458-2381, as listed in official Medicare / NPI Registry data.
What is Ian T. Crumm's NPI number?
1700407459. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Ian T. Crumm works

Medicare's Facility Affiliation Data lists Ian T. Crumm 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 Ian T. Crumm is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists Ian T. Crumm as a member of these groups (CMS data updated 2026-10-02).

  • The Regents of the University of California1,462 clinicians in the group
  • Sound Physicians of Hawaii Inc18 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Santa Monica

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

All internal medicine doctors in Santa Monica →

Clinician information

CredentialMD
Graduation year2020
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1700407459
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