Michael Chen, M.D.
NPI 1417104720 · Radiation Oncology Physician · Santa Rosa, CA
Michael Chen, M.D. is a Radiation Oncology Physician provider in Santa Rosa, CA (NPI 1417104720).
Provider details
- NPI number
- 1417104720
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G13348 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-08-19
- Last updated
- 2008-08-19
Frequently asked questions
- What is Michael Chen's NPI number?
- Michael Chen's National Provider Identifier (NPI) is 1417104720, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Chen's specialty?
- Michael Chen is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Chen located?
- Michael Chen's practice location on file with NPPES is 401 Oak Brook Pl, Santa Rosa, CA 95409-6311.
- What is Michael Chen's phone number?
- The practice phone number listed in the NPPES registry for Michael Chen is (707) 537-8068.
- Is Michael Chen's NPI active?
- Yes — Michael Chen's NPI (1417104720) is active in the NPPES registry as of the last update on 2008-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.