NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Henry Porr, M.D.

Pulmonary Disease Physician in Mobile, AL · enumerated 2008.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1104074236

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Registry record

Entity type Individual (Type 1)
Name Dr. William Henry Porr
Credential M.D.
Sex Male
Practice address 5955 Airport Blvd, Mobile, AL, 36608
Phone (251) 633-0573
Fax (251) 633-7367
Enumeration date Sep 3, 2008
Last updated in NPPES Mar 19, 2024

Taxonomy & licenses

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 37294 (AL) Secondary
207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 37294 (AL) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
218636 Medicaid AL -
512-15873 Other AL BCBS OF AL
630799312 Other AL HUMANA CHOICE
0810349 Other AL CIGNA
5979732 Other AL UNITED HEALTHCARE
09507364 Medicaid MS -
218634 Medicaid AL -
512-15881 Other AL BCBS OF AL
221255 Medicaid AL -
A03141I901 Other AL MEDICARE
221249 Medicaid AL -
512-15871 Other AL BCBS OF AL
Z54925 Other AL VIVA HEALTH
240048 Medicaid AL -
512-15878 Other AL BCBS OF AL
630799312 Other MS MAGNOLIA HEALTH
219488 Medicaid AL -
4555452 Other AL AETNA
512-15876 Other AL BCBS OF AL

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What specialty is William Porr?
William Porr is registered in NPPES with the primary taxonomy of Pulmonary Disease Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-19.