Proton Doctors Professional Corporation
NPI 1093240285 · Radiation Oncology Physician · San Diego, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Proton Doctors Professional Corporation is a Radiation Oncology Physician organization in San Diego, CA (NPI 1093240285).
Provider details
- NPI number
- 1093240285
- Entity type
- Organization
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Andrew Chang, President(951) 533-4889
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
9 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
- 2017-04-25
- Last updated
- 2017-08-21
Frequently asked questions
- What is Proton Doctors Professional Corporation's NPI number?
- Proton Doctors Professional Corporation's National Provider Identifier (NPI) is 1093240285, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Proton Doctors Professional Corporation?
- Proton Doctors Professional Corporation is classified in the NPPES registry as Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Proton Doctors Professional Corporation located?
- Proton Doctors Professional Corporation's practice location on file with NPPES is 9730 Summers Ridge Rd, San Diego, CA 92121-3101.
- What is Proton Doctors Professional Corporation's phone number?
- The practice phone number listed in the NPPES registry for Proton Doctors Professional Corporation is (858) 549-7400.
- Does Proton Doctors Professional Corporation accept Medicare?
- Proton Doctors Professional Corporation is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Proton Doctors Professional Corporation?
- The authorized official listed on Proton Doctors Professional Corporation's NPPES record is Andrew Chang, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Proton Doctors Professional Corporation's NPI active?
- Yes — Proton Doctors Professional Corporation's NPI (1093240285) is active in the NPPES registry as of the last update on 2017-08-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.