Philip Chatham, M.D.
NPI 1740279264 · Medical Oncology Physician · San Gabriel, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Philip Chatham, M.D. is a Medical Oncology Physician provider in San Gabriel, CA (NPI 1740279264).
Provider details
- NPI number
- 1740279264
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A32433 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
Additional practice locations (2)
- 16801 Devonshire StGranada Hills, CA 91344-7405Phone: (818) 366-1878Fax: (818) 360-7850
- 15031 Rinaldi St Ste 150Mission Hills, CA 91345-1207Phone: (818) 660-4700
Registry dates
- Enumerated
- 2005-10-18
- Last updated
- 2025-05-02
- Certified
- 2025-05-02
Frequently asked questions
- What is Philip Chatham's NPI number?
- Philip Chatham's National Provider Identifier (NPI) is 1740279264, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Philip Chatham's specialty?
- Philip Chatham is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Philip Chatham located?
- Philip Chatham's practice location on file with NPPES is 207 S Santa Anita St Ste P05, San Gabriel, CA 91776-1159.
- What is Philip Chatham's phone number?
- The practice phone number listed in the NPPES registry for Philip Chatham is (626) 652-7433.
- Does Philip Chatham accept Medicare?
- Philip Chatham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Philip Chatham's NPI active?
- Yes — Philip Chatham's NPI (1740279264) is active in the NPPES registry as of the last update on 2025-05-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.