Douglas Arbogast Rahn, M.D.
Radiation Oncology Physician · Chula Vista, CA
Douglas Arbogast Rahn, M.D. is a radiation oncology physician with a practice address in Chula Vista, California, and NPI 1609018340, issued on Mar 26, 2009. Check the license (California A115869, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Douglas Arbogast Rahn
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- A115869 CA
Self-reported in NPPES; status is on the state search - Practice location
- 959 Lane Ave, Chula Vista, CA 91914
- Phone
- (619) 502-7730
- Enumerated
- Mar 26, 2009
- Record last updated
- Aug 22, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140912001473); accepts Medicare assignment
- Medical or professional school
- West Virginia University School Of Medicine, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Also registered at 959 Lane Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gina Mansy, M.D.Radiation Oncology Physician1326046855
- Evan White, M.D.Radiation Oncology Physician1063701407
Verify Douglas Arbogast Rahn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A115869Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% more Medicare Part D claims than the average radiation oncology physician in 2024
164 Medicare Part D claims for 78 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 11 claims were for opioids.
Most prescribed
- Tamsulosin Hcl77 claims
- Ssd15 claims
- Oxybutynin Chloride11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $274.07
10 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Radiation Oncology Network OF Southern CaliforniaChula Vista, CA
- Regents OF The University OF CaliforniaEncinitas, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Douglas Arbogast Rahn among 735 radiation oncology physician records in California
Douglas Arbogast Rahn, M.D. is one of 735 radiation oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 62% of them.
- NPI issued2009 · 62% of these records are older, 34% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2009 · median 2005 among the 545 with a school on file
- Record last updated2019 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in California
There are 735 radiation oncology physician records in California.
All 735 in California → Every provider in Chula Vista → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Gina Mansy, M.D.Chula Vista, CA 919141326046855
- Evan White, M.D.Chula Vista, CA 919141063701407
- Andrew Bruggeman, M.D.Chula Vista, CA 919111790049591
- Ruben Carmona, MDChula Vista, CA 919111275929242
- Phillip Zentner, MDChula Vista, CA 919111063452415
- Kelly Dewitt, MDLa Mesa, CA 919421184668741
- Sunanda Pejavar, M.D.La Mesa, CA 919421912232513
- Barry Uhl, MDLa Mesa, CA 919421811936693
Common questions
What is Douglas Arbogast Rahn, M.D.'s NPI number?
Douglas Arbogast Rahn, M.D.'s National Provider Identifier (NPI) is 1609018340, issued on Mar 26, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Douglas Arbogast Rahn, M.D. located?
The NPPES record lists a practice address at 959 Lane Ave, Chula Vista, CA, 91914. Phone: (619) 502-7730. Providers update this record themselves, so call before visiting.
How can I verify Douglas Arbogast Rahn, M.D.'s license?
NPPES lists California license number A115869, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Douglas Arbogast Rahn, M.D. prescribe under Medicare Part D?
In 2024, Douglas Arbogast Rahn, M.D. had 164 Medicare Part D claims for 78 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.