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DR. WILLIAM LOY YAP M.D.
NPI 1568438802
Internal Medicine - Rheumatology in Baltimore, MD

Active since February 27, 2006
724 MAIDEN CHOICE LN, SUITE # 204, BALTIMORE, MD 21228(410) 744-6566(410) 744-7225 Get Directions Write a Review

NPPES record last updated: July 9, 2007. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. William Loy Yap M.d. NPPES

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

DR. WILLIAM LOY YAP M.D. (NPI 1568438802) is an individual rheumatology provider in Baltimore, Maryland, licensed in Maryland (D31256) and active in the NPI registry since February 2006.

NPPES Registry Identity

NPI1568438802
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameDR. WILLIAM LOY YAPCredential: M.D.
Location Address724 MAIDEN CHOICE LN, SUITE # 204Baltimore, MD 21228-5911
Mailing Address724 Maiden Choice Ln, Suite # 204Baltimore, MD 21228-5911 · (410) 744-6566 · Fax (410) 744-7225
Phone(410) 744-6566
Fax(410) 744-7225
Sole ProprietorYes
Enumeration DateFebruary 27, 2006
Last NPPES UpdateJuly 9, 2007
✔ NPI 1568438802 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in MD · D31256
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
724 MAIDEN CHOICE LN, Baltimore, MD 21228
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Other Identifiers 2

Medicare UPINE18200MD
Medicare ID-Type Unspecified9510MD · Medicare # Maryland

Other Providers at the Same Location NPPES 12

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

DR. RAAFAT Y GIRGIS M.D.
Internal Medicine
724 MAIDEN CHOICE LN, SUITE 201
CATONSVILLE, MD 21228
Baltimore County (410) 744-1101
DR. LEDUVINA L. CUETO M.D.
Internal Medicine
724 MAIDEN CHOICE LN, SUITE # 204
CATONSVILLE, MD 21228
Baltimore County (410) 744-6566
KMH HEALTHCARE COPORATION
Clinic/Center (Radiology)
724 MAIDEN CHOICE LN, SUITE 102
CATONSVILLE, MD 21228
Baltimore County (877) 564-5227
GLORIA DAMIEN, MD, P.C.
Internal Medicine (Geriatric Medicine)
724 MAIDEN CHOICE LN, SUITE 300
BALTIMORE, MD 21228
Baltimore County (410) 719-0800
UNITED RADIOLOGY SERVICES, LLC
Radiology (Body Imaging)
724 MAIDEN CHOICE LN
CATONSVILLE, MD 21228
Baltimore County (410) 747-9303
RONALD GILLILAN M.D.
Internal Medicine (Cardiovascular Disease)
724 MAIDEN CHOICE LN
BALTIMORE, MD 21228
Baltimore County (410) 455-0200
MAIDEN CHOICE CARDIAC DIAGNOSTIC CENTER
Internal Medicine (Cardiovascular Disease)
724 MAIDEN CHOICE LN, SUITE 203
BALTIMORE, MD 21228
Baltimore County (410) 455-0200
DR. THOMAS S. MILLER M.D.
Internal Medicine
724 MAIDEN CHOICE LN, SUITE # 204
CATONSVILLE, MD 21228
Baltimore County (410) 744-6566

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 William Yap's NPI number?

The NPI number for William Yap is 1568438802. It was assigned to this individual provider in the NPPES registry on February 27, 2006.

Where is William Yap located?

William Yap practices at 724 Maiden Choice Ln Suite # 204, Baltimore, MD 21228. The listed phone number is (410) 744-6566.

What is William Yap's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

When was this NPI record last updated?

The NPPES record for William Yap was last updated on July 9, 2007. NPI Profile syncs with the weekly NPPES data releases published by CMS.