Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Alan J Mast, RPH

Pharmacist in Brooklyn, NY · enumerated 2006.

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

National Provider Identifier

1295776854

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Registry record

Entity type Individual (Type 1)

Name Mr. Alan J Mast

Credential RPH

Sex Male

Practice address 800 Poly Pl, Brooklyn, NY, 11209

Phone (718) 630-3639

Enumeration date Jun 8, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 33902 (NY) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Alan Mast?

Alan Mast is registered in NPPES with the primary taxonomy of Pharmacist. 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.

Other providers at this practice address

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Andrew Adler Internal Medicine Physician · Brooklyn, NY NPI 1629050125 Donna Russo Psychiatric/Mental Health Nurse Practitioner · Brooklyn, NY NPI 1659354520 Nancy Haliskoe Adult Health Nurse Practitioner · Brooklyn, NY NPI 1750369104 Jeffrey Weiss Urology Physician · Brooklyn, NY NPI 1104896984 Olga Badem Infectious Disease Physician · Brooklyn, NY NPI 1295704963 Ann Higgins Nurse Practitioner · Brooklyn, NY NPI 1770544231 Chow Ng Physical Medicine & Rehabilitation Physician · Brooklyn, NY NPI 1023073731 Barry Goozner Internal Medicine Physician · Brooklyn, NY NPI 1700841491

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.