Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexander Z Lyapin, M.D.

Hospitalist Physician in Jacksonville, FL · enumerated 2010.

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

National Provider Identifier

1881905198

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Registry record

Entity type Individual (Type 1)

Name Alexander Z Lyapin

Credential M.D.

Sex Male

Practice address 820 Prudential Dr Ste 304, Jacksonville, FL, 32207

Phone (904) 202-3860

Fax (904) 202-3846

Enumeration date Jul 1, 2010

Last updated in NPPES Aug 13, 2024

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License ME133489 (FL) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 271546 (NY) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License ME133489 (FL) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License BP10037746 (TX) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 271546 (NY) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 → Validate an NPI →

Frequently asked questions

What is the NPI number for Alexander Lyapin?

The National Provider Identifier (NPI) for Alexander Lyapin is 1881905198, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alexander Lyapin practice?

The practice location on file with NPPES is in Jacksonville, FL. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-13.