William Massey, M.D.
NPI 1316960271 · Allergy & Immunology Physician · Birmingham, AL
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Massey, M.D. is a Allergy & Immunology Physician provider in Birmingham, AL (NPI 1316960271).
Provider details
- NPI number
- 1316960271
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 17948 (AL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2006-07-25
- Last updated
- 2016-08-09
Frequently asked questions
- What is William Massey's NPI number?
- William Massey's National Provider Identifier (NPI) is 1316960271, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Massey's specialty?
- William Massey is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is William Massey located?
- William Massey's practice location on file with NPPES is 100 Pilot Medical Dr, Birmingham, AL 35235-3411.
- What is William Massey's phone number?
- The practice phone number listed in the NPPES registry for William Massey is (205) 854-8084.
- Does William Massey accept Medicare?
- William Massey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Massey's NPI active?
- Yes — William Massey's NPI (1316960271) is active in the NPPES registry as of the last update on 2016-08-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.