What is William Mejia's NPI number?

William Mejia's National Provider Identifier (NPI) is 1851539829, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Mejia's specialty?

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

Where is William Mejia located?

William Mejia's practice location on file with NPPES is 391 E 149th St, Bronx, NY 10455-3907.

What is William Mejia's phone number?

The practice phone number listed in the NPPES registry for William Mejia is (718) 665-8300.

Is William Mejia's NPI active?

Yes — William Mejia's NPI (1851539829) is active in the NPPES registry as of the last update on 2009-01-29.

IndividualActive

William Mejia, MD

NPI 1851539829 · Internal Medicine Physician · Bronx, NY

William Mejia, MD is a Internal Medicine Physician provider in Bronx, NY (NPI 1851539829).

Provider details

NPI number: 1851539829
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: 133211-1 (NY)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense 133211-1 (NY)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(86/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
17 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

391 E 149th St

Ste. 216

Bronx, NY 10455-3907

Phone: (718) 665-8300

Fax: (718) 665-8301

Street-level locationGet directions

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Mailing address