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MARCUS R WILLIAMS M.D.
NPI 1619057734
Internal Medicine in Exton, PA

Active since October 16, 2006
80 W WELSH POOL RD, SUITE 101S, EXTON, PA 19341(484) 483-2745(484) 879-4098 Get Directions Write a Review

NPPES record last updated: February 4, 2014. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Marcus R Williams M.d. NPPES

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

MARCUS R WILLIAMS M.D. (NPI 1619057734) is an individual internal medicine provider in Exton, Pennsylvania, licensed in Pennsylvania (MD428872) and active in the NPI registry since October 2006.

NPPES Registry Identity

NPI1619057734
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMARCUS R WILLIAMSCredential: M.D.
Location Address80 W WELSH POOL RD, SUITE 101SExton, PA 19341-1233
Mailing Address80 W Welsh Pool Rd, Suite 101sExton, PA 19341-1233 · (484) 483-2745 · Fax (484) 879-4098
Phone(484) 483-2745
Fax(484) 879-4098
Sole ProprietorNo
Enumeration DateOctober 16, 2006
Last NPPES UpdateFebruary 4, 2014
✔ NPI 1619057734 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in PA · MD428872
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
80 W WELSH POOL RD, Exton, PA 19341
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Other Identifiers 4

Medicare PIN000057201NH
Medicare UPINC87188NH
Medicare PINP00412050
Medicaid30206557NH

Other Providers at the Same Location NPPES 15

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

JEFFREY LEE ROSENBLUM, MD, PC
Urology
80 W WELSH POOL RD, SUITE 100
EXTON, PA 19341
Chester County (610) 524-5444
CLETUS M. BONDS, III, DMD, PC
Dentist
80 W WELSH POOL RD, SUITE 201 NORTH
EXTON, PA 19341
Chester County (610) 363-0809
DR. SAMANTHA ELIZABETH REAVELL AUD
Audiologist
80 W WELSH POOL RD
EXTON, PA 19341
Chester County (610) 363-2532
NEW PATH MD INC
Internal Medicine
80 W WELSH POOL RD, SUITE 101S
EXTON, PA 19341
Chester County (484) 434-2745
JONATHAN K HETZEL, MD
Family Medicine
80 W WELSH POOL RD, SUITE 200 SOUTH
EXTON, PA 19341
Chester County (610) 363-8260
JANELLE ANNE BURDETTE MS, CCC/A, FAAA
Audiologist
80 W WELSH POOL RD, SUITE 103
EXTON, PA 19341
Chester County (610) 363-2532
DR. CATHERINE M MARINO AU.D.,CCC/A
Audiologist
80 W WELSH POOL RD, SUITE 103
EXTON, PA 19341
Chester County (610) 363-2532
DR. MARK ERIC GODDARD O.D.
Optometrist
80 W WELSH POOL RD, SUITE 106
EXTON, PA 19341
Chester County (610) 363-1871

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 Marcus Williams's NPI number?

The NPI number for Marcus Williams is 1619057734. It was assigned to this individual provider in the NPPES registry on October 16, 2006.

Where is Marcus Williams located?

Marcus Williams practices at 80 W Welsh Pool Rd Suite 101S, Exton, PA 19341. The listed phone number is (484) 483-2745.

What is Marcus Williams's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Marcus Williams was last updated on February 4, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.