Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. BERNARD ARTHUR MASON M.D.
NPI 1447244892
Internal Medicine - Hematology & Oncology in Philadelphia, PA

Q: What is Bernard Mason's NPI number?

The NPI number for Bernard Mason is 1447244892. It was assigned to this individual provider in the NPPES registry on August 31, 2005.

Q: What is Bernard Mason's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Bernard Mason was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days 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.

Active since August 31, 2005

230 W WASHINGTON SQ, 2ND FLOOR, PHILADELPHIA, PA 19106(215) 829-6088(215) 829-6104 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Bernard Arthur Mason M.d. NPPES

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

DR. BERNARD ARTHUR MASON M.D. (NPI 1447244892) is an individual hematology & oncology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD014414E) and active in the NPI registry since August 2005.

NPPES Registry Identity

NPI1447244892

Entity TypeIndividualMale

Primary Taxonomy207RH0003X

Provider Legal NameDR. BERNARD ARTHUR MASONCredential: M.D.

Location Address230 W WASHINGTON SQ, 2ND FLOORPhiladelphia, PA 19106-3500

Mailing Address230 W Washington Sq, 2nd FloorPhiladelphia, PA 19106-3500 · (215) 829-6088 · Fax (215) 829-6104

Phone(215) 829-6088

Fax(215) 829-6104

Sole ProprietorNo

Enumeration DateAugust 31, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1447244892 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 · MD014414E

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.

230 W WASHINGTON SQ, Philadelphia, PA 19106

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Other Identifiers 1

Medicaid0006173050001PA

Other Providers at the Same Location NPPES 20

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

MELISSA HELLER

Counselor

230 W WASHINGTON SQ
PHILADELPHIA, PA 19106

Philadelphia County (267) 624-3847

AMARYAH YAEGER CRNP

Nurse Practitioner (Acute Care)

230 W WASHINGTON SQ
PHILADELPHIA, PA 19106

Philadelphia County (215) 829-5064

KWABENA ADU NTOSO MD

Internal Medicine (Nephrology)

230 W WASHINGTON SQ, SUITE 100
PHILADELPHIA, PA 19106

Philadelphia County (215) 829-8420

BRYAN MATTHEW BLANCHARD CRNP

Nurse Practitioner (Acute Care)

230 W WASHINGTON SQ
PHILADELPHIA, PA 19106

Philadelphia County (215) 829-8713

PENNSYLVANIA NEPHROLOGY ASSOCIATES, P.C.

Internal Medicine (Nephrology)

230 W WASHINGTON SQ, SUITE 100
PHILADELPHIA, PA 19106

Philadelphia County (215) 829-8420

DR. ROBERT K WENGER MD

Thoracic Surgery (Cardiothoracic Vascular Surgery)

230 W WASHINGTON SQ
PHILADELPHIA, PA 19106

Philadelphia County (215) 829-8713

FREDERICK A NUNES MD

Internal Medicine (Gastroenterology)

230 W WASHINGTON SQ, FARM JOURNAL BUILDING, FL 4
PHILADELPHIA, PA 19106

Philadelphia County (215) 829-3561

CLINICAL HEALTH CARE ASSOCIATES OF NEW JERSEY, PC

Orthopaedic Surgery (Foot and Ankle Surgery)

230 W WASHINGTON SQ, 5TH FLOOR
PHILADELPHIA, PA 19106

Philadelphia County (215) 829-3668

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 Bernard Mason's NPI number?

The NPI number for Bernard Mason is 1447244892. It was assigned to this individual provider in the NPPES registry on August 31, 2005.

Where is Bernard Mason located?

Bernard Mason practices at 230 W Washington Sq 2nd Floor, Philadelphia, PA 19106. The listed phone number is (215) 829-6088.

What is Bernard Mason'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 Bernard Mason was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days 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.