Allan Chen, M.D.
Radiation Oncology Physician · Roseville, CA
Allan Chen, M.D. is a radiation oncology physician with a practice address in Roseville, California, and NPI 1174506406, issued on Nov 21, 2005. Check the license (California A76555, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Allan Chen
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- A76555 CA
Self-reported in NPPES; status is on the state search - Practice location
- 504 Gibson Dr, Roseville, CA 95678
- Phone
- (916) 771-2871
- Enumerated
- Nov 21, 2005
- Record last updated
- Aug 29, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (916) 771-2841
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Also registered at 504 Gibson Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shawna Chrisman, NP,RN,MS,ACNPNurse Practitioner1164510970
- Nima Harandi, MDRadiation Oncology Physician1124446307
- Derrick Koo, MDRadiation Oncology Physician1902984495
Verify Allan Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A76555Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Allan Chen among 735 radiation oncology physician records in California
Allan Chen, 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 not. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 84% newer
- In a Medicare fileNo · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 74% of these records are
- Record last updated2012 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 735 in California → Every provider in Roseville → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Nima Harandi, MDRoseville, CA 956781124446307
- Derrick Koo, MDRoseville, CA 956781902984495
- Franklin Banker, M.D.Cameron Park, CA 956821841297959
- Meghan MacomberCameron Park, CA 956821720421142
- Rachel Chou, MDRancho Cordova, CA 956701740244094
- Darryl Hunter, MDRancho Cordova, CA 956701538247242
- Nathalie Nguyen, MDRancho Cordova, CA 956701205890498
- Bihai Peng, MDRancho Cordova, CA 956701932287430
Common questions
What is Allan Chen, M.D.'s NPI number?
Allan Chen, M.D.'s National Provider Identifier (NPI) is 1174506406, issued on Nov 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Allan Chen, M.D. located?
The NPPES record lists a practice address at 504 Gibson Dr, Roseville, CA, 95678. Phone: (916) 771-2871. Providers update this record themselves, so call before visiting.
How can I verify Allan Chen, M.D.'s license?
NPPES lists California license number A76555, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.