Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Sarah Elizabeth Block, PHARM.D.

Pharmacotherapy Pharmacist in Birch Run, MI · enumerated 2014.

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

National Provider Identifier

1821405457

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Registry record

Entity type Individual (Type 1)

Name Ms. Sarah Elizabeth Block

Credential PHARM.D.

Sex Female

Practice address 9515 Birch Run Rd, Birch Run, MI, 48415

Phone (989) 624-1610

Enumeration date Jul 15, 2014

Last updated in NPPES May 15, 2018

Taxonomy & licenses

1835P1200X Pharmacotherapy Pharmacist Pharmacy Service Providers · License 5302039957 (MI) Primary

PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD 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

Is NPI 1821405457 active?

Yes, as of the latest NPPES snapshot, NPI 1821405457 is active (record last updated 2018-05-15).

How do I verify Sarah Block's NPI record?

Cross-check NPI 1821405457 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-15.