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DR. GEOFFREY W CHAN M.D.
NPI 1912962424
Internal Medicine - Hematology & Oncology in Collegeville, PA

Active since April 18, 2006
1250 S COLLEGEVILLE RD, UP4420, COLLEGEVILLE, PA 19426(610) 917-5256 Get Directions Write a Review

NPPES record last updated: September 23, 2009. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Geoffrey W Chan M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GEOFFREY W CHAN M.D. (NPI 1912962424) is an individual hematology & oncology provider in Collegeville, Pennsylvania, licensed in Pennsylvania (MD432135) and active in the NPI registry since April 2006.

NPPES Registry Identity

NPI1912962424
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameDR. GEOFFREY W CHANCredential: M.D.
Location Address1250 S COLLEGEVILLE RD, UP4420Collegeville, PA 19426-2990
Mailing Address76 Sagewood DrMalvern, PA 19355-2234 · (857) 919-1449
Phone(610) 917-5256
Sole ProprietorNo
Enumeration DateApril 18, 2006
Last NPPES UpdateSeptember 23, 2009
✔ NPI 1912962424 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in PA · MD432135
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
1250 S COLLEGEVILLE RD, Collegeville, PA 19426
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Other Providers at the Same Location NPPES 11

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BHARGAV CHANDRASHEKAR D.O.
Preventive Medicine (Preventive Medicine/Occupational Environmental Medicine)
1250 S COLLEGEVILLE RD
COLLEGEVILLE, PA 19426
Montgomery County (106) 917-7000
DR. PETER BULKELEY LANGMUIR MD
Pediatrics (Pediatric Hematology-Oncology)
1250 S COLLEGEVILLE RD
COLLEGEVILLE, PA 19426
Montgomery County (215) 805-3112
DR. SUZETTE Y OSEI M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
1250 S COLLEGEVILLE RD, GLAXOSMITH KLINE PHARMACEUTICAL
COLLEGEVILLE, PA 19426
Montgomery County (610) 917-6880
STEPHEN DOUGLAS RUBIN MD
Internal Medicine (Medical Oncology)
1250 S COLLEGEVILLE RD
COLLEGEVILLE, PA 19426
Montgomery County (484) 620-9545
DR. PERRY D NISEN M.D., PH.D.
Pediatrics (Pediatric Hematology-Oncology)
1250 S COLLEGEVILLE RD, UP1455
COLLEGEVILLE, PA 19426
Montgomery County (610) 917-6754
DR. ROBERT W SWEETMAN M.D.
Pediatrics (Pediatric Hematology-Oncology)
1250 S COLLEGEVILLE RD, UP 4420
COLLEGEVILLE, PA 19426
Montgomery County (610) 917-6522
DR. ANDREW MOSS LIPPA M.D., PH.D.
Pediatrics (Pediatric Infectious Diseases)
1250 S COLLEGEVILLE RD
COLLEGEVILLE, PA 19426
Montgomery County (215) 266-4646
MARY E. SABOL
Internal Medicine (Cardiovascular Disease)
1250 S COLLEGEVILLE RD, MAIL CODE: UP 4300
COLLEGEVILLE, PA 19426
Montgomery County (215) 290-8861

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Geoffrey Chan's NPI number?

The NPI number for Geoffrey Chan is 1912962424. It was assigned to this individual provider in the NPPES registry on April 18, 2006.

Where is Geoffrey Chan located?

Geoffrey Chan practices at 1250 S Collegeville Rd Up4420, Collegeville, PA 19426. The listed phone number is (610) 917-5256.

What is Geoffrey Chan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

When was this NPI record last updated?

The NPPES record for Geoffrey Chan was last updated on September 23, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.