Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alanna Tisdale, M.D., M.P.H.

Ophthalmology Physician in Boston, MA · enumerated 2016.

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

National Provider Identifier

1235589144

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Registry record

Entity type Individual (Type 1)

Name Dr. Alanna Tisdale

Credential M.D., M.P.H.

Sex Female

Practice address 85 E Concord St Fl 8, Boston, MA, 02118

Phone (617) 638-4552

Enumeration date Jun 21, 2016

Last updated in NPPES Sep 28, 2023

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 289633 (MA) Primary

207WX0109X Neuro-ophthalmology Physician Allopathic & Osteopathic Physicians · License 289633 (MA) 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 Alanna Tisdale?

The National Provider Identifier (NPI) for Alanna Tisdale is 1235589144, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alanna Tisdale practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-28.