NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Larry Andrew Custer, R.PH.

Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist in Grand Rapids, MI · enumerated 2008 · practices at Metropolitan Hospital.

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

National Provider Identifier

1730330341

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Registry record

Entity type Individual (Type 1)
Name Mr. Larry Andrew Custer
Credential R.PH.
Sex Male
Practice address Grand Rapids, MI, 49506
Phone (616) 252-4757
Fax (616) 252-0724
Enumeration date Oct 2, 2008
Last updated in NPPES Oct 2, 2008

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

Taxonomy & licenses

1835P0018X Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist Pharmacy Service Providers · License 024244 (MO) Primary
RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH 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.

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Frequently asked questions

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.
What specialty is Larry Custer?
Larry Custer is registered in NPPES with the primary taxonomy of Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-02.