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Radiation Oncology

Douglas Rahn, MD

Works at hospitals in San Diego, CA · California

Summary

Douglas Rahn, MD (Radiation Oncology) is listed by Medicare at 1 hospital in San Diego, CA. NPI 1609018340. 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 Douglas Rahn, 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

Radiation OncologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
17Years since medical school (graduated 2009)
West Virginia University School Of MedicineMedical school
MaleGender (as listed)
Regents of the University of CaliforniaGroup practice (+1 more)

Quick answers

Which hospitals does Douglas Rahn work at?
Medicare's official clinician data lists Douglas Rahn at 1 hospital: UC San Diego Health Hillcrest - Hillcrest Med Ctr. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Douglas Rahn see patients?
Medicare's clinician data lists 5 practice locations, including El Centro, CA, Encinitas, CA and La Jolla, CA. Call before your visit to confirm the address.
What is Douglas Rahn's specialty?
Medicare lists Radiation Oncology as the primary specialty.
Does Douglas Rahn accept Medicare assignment?
Yes. Medicare's clinician data says Douglas Rahn 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 Douglas Rahn offer telehealth?
Medicare's clinician data says Douglas Rahn offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Douglas Rahn?
(760) 339-5620, as listed in official Medicare / NPI Registry data.
What is Douglas Rahn's NPI number?
1609018340. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Douglas Rahn works

Medicare's Facility Affiliation Data lists Douglas Rahn 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 Douglas Rahn is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Douglas Rahn as a member of these groups (CMS data updated 2026-10-02).

  • Regents of the University of California2,089 clinicians in the group
  • Radiation Oncology Network of Southern California5 clinicians in the group

Specialties

Find other Radiation Oncology doctors in California →

Other radiation oncologists in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

All radiation oncologists in California →

Clinician information

CredentialMD
Medical schoolWest Virginia University School Of Medicine
Graduation year2009
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1609018340
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