MR. WILLIAM ISENSTEIN R.PH.
NPI 1114201985
Pharmacist in Gaithersburg, MD

Active since September 28, 2011
880 RUSSELL AVE, GAITHERSBURG, MD 20879(301) 556-1960(301) 556-1967 Get Directions Write a Review

NPPES record last updated: September 28, 2011. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mr. William Isenstein R.ph. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. WILLIAM ISENSTEIN R.PH. (NPI 1114201985) is an individual pharmacist in Gaithersburg, Maryland, licensed in Maryland (09704) and active in the NPI registry since September 2011.

NPPES Registry Identity

NPI1114201985
Entity TypeIndividualMale
Primary Taxonomy183500000X
Provider Legal NameMR. WILLIAM ISENSTEINCredential: R.PH.
Location Address880 RUSSELL AVEGaithersburg, MD 20879-3506
Mailing Address880 Russell AveGaithersburg, MD 20879-3506 · (301) 556-1960 · Fax (301) 556-1967
Fax(301) 556-1967
Sole ProprietorNo
Enumeration DateSeptember 28, 2011
NPI 1114201985 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPharmacistPharmacy Service Providers
Taxonomy Code183500000X
License Licensed in MD · 09704
Definition
An individual licensed by the appropriate state regulatory agency to engage in the practice of pharmacy. The practice of pharmacy includes, but is not limited to, assessment, interpretation, evaluation, and implementation, initiation, monitoring or modification of medication and or medical orders; the compounding or dispensing of medication and or medical orders; participation in drug and device procurement, storage, and selection; drug administration; drug regimen reviews; drug or drug-related research; provision of patient education and the provision of those acts or services necessary to provide medication therapy management services in all areas of patient care.
880 RUSSELL AVE, Gaithersburg, MD 20879

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Pharmacy (Community/Retail Pharmacy)
880 RUSSELL AVE
GAITHERSBURG, MD 20879
Optometrist
880 RUSSELL AVE
GAITHERSBURG, MD 20879
Pharmacist
880 RUSSELL AVE
GAITHERSBURG, MD 20879
Optometrist
880 RUSSELL AVE
GAITHERSBURG, MD 20879
Eyewear Supplier
880 RUSSELL AVE
GAITHERSBURG, MD 20879
Hearing Aid Equipment
880 RUSSELL AVE
GAITHERSBURG, MD 20879

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Isenstein's NPI number?

The NPI number for William Isenstein is 1114201985. It was assigned to this individual provider in the NPPES registry on September 28, 2011.

Where is William Isenstein located?

William Isenstein practices at 880 Russell Ave, Gaithersburg, MD 20879. The listed phone number is (301) 556-1960.

What is William Isenstein's specialty?

The primary specialty registered for this NPI is Pharmacist with taxonomy code 183500000X.

When was this NPI record last updated?

The NPPES record for William Isenstein was last updated on September 28, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.