What is William Yap's NPI number?

William Yap's National Provider Identifier (NPI) is 1568438802, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Yap's specialty?

William Yap is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).

Where is William Yap located?

William Yap's practice location on file with NPPES is 724 Maiden Choice Ln, Baltimore, MD 21228-5911.

What is William Yap's phone number?

The practice phone number listed in the NPPES registry for William Yap is (410) 744-6566.

Is William Yap's NPI active?

Yes — William Yap's NPI (1568438802) is active in the NPPES registry as of the last update on 2007-07-09.

IndividualActive

William Yap, M.D.

NPI 1568438802 · Rheumatology Physician · Baltimore, MD

William Yap, M.D. is a Rheumatology Physician provider in Baltimore, MD (NPI 1568438802).

Provider details

NPI number: 1568438802
Entity type: Individual
Primary specialty: Rheumatology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: Yes
License: D31256 (MD)

Specialties & taxonomies

Rheumatology PhysicianPrimary207RR0500XLicense D31256 (MD)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(91/100 index)

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

724 Maiden Choice Ln

Suite # 204

Baltimore, MD 21228-5911

Phone: (410) 744-6566

Fax: (410) 744-7225

Street-level locationGet directions

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Mailing address