Geoffrey Chan, M.D.
NPI 1912962424 · Hematology & Oncology Physician · Collegeville, PA
Geoffrey Chan, M.D. is a Hematology & Oncology Physician provider in Collegeville, PA (NPI 1912962424).
Provider details
- NPI number
- 1912962424
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD432135 (PA)
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
20 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
- 2006-04-18
- Last updated
- 2009-09-23
Frequently asked questions
- What is Geoffrey Chan's NPI number?
- Geoffrey Chan's National Provider Identifier (NPI) is 1912962424, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Geoffrey Chan's specialty?
- Geoffrey Chan is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Geoffrey Chan located?
- Geoffrey Chan's practice location on file with NPPES is 1250 S Collegeville Rd, Collegeville, PA 19426-2990.
- What is Geoffrey Chan's phone number?
- The practice phone number listed in the NPPES registry for Geoffrey Chan is (610) 917-5256.
- Is Geoffrey Chan's NPI active?
- Yes — Geoffrey Chan's NPI (1912962424) is active in the NPPES registry as of the last update on 2009-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.