NPI Portal NPI Lookup & Verification

Dr. William Lantz Effinger I, D.O.,M.S.

Dr. William Lantz Effinger I is a General Practice Physician provider (General Practice) practicing in Tallahassee, FL, registered in the NPPES registry with NPI 1225327380 since 2011. The credential DO stands for Doctor of Osteopathic Medicine. Practices at Effinger Health, PA (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1225327380
Entity type Individual (Type 1)
Name Dr. William Lantz Effinger I
Credential D.O.,M.S.
Sex Male
Practice address Tallahassee, FL, 32308
Phone 8886982714
Fax 8886982714
Enumeration date 2011-03-29
Last updated in NPPES 2021-09-07

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208D00000X General Practice Physician Primary OS11271 FL

DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Copy-ready billing details
Provider: William Effinger, D.O.,M.S.
NPI: 1225327380
Taxonomy: 208D00000X (General Practice Physician)
Address: Tallahassee, FL, 32308

Other providers at this practice address

NPI Name Type Specialty Location
1235376682 Aaron Cohn Individual Acute Care Nurse Practitioner Tallahassee, FL
1629515325 Effinger Health, PA Organization Family Medicine Physician Tallahassee, FL
1679046338 Adefunke Gbadebo Individual Nurse Practitioner Tallahassee, FL
1295357424 Ruben De Leon Individual Nurse Practitioner Tallahassee, FL
1316677263 Penelope Ramos Individual Nurse Practitioner Tallahassee, FL

Verify this record

Cross-check NPI 1225327380 against the authoritative CMS record: view Dr. William Lantz Effinger I on the official NPPES registry .

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. Read the full guide or validate an NPI number.

Frequently asked questions

What specialty is William Effinger?
William Effinger is registered in NPPES with the primary taxonomy of General Practice 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-09-07.