What is William Isenstein's NPI number?

William Isenstein's National Provider Identifier (NPI) is 1114201985, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Isenstein's specialty?

William Isenstein is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).

Where is William Isenstein located?

William Isenstein's practice location on file with NPPES is 880 Russell Ave, Gaithersburg, MD 20879-3506.

What is William Isenstein's phone number?

The practice phone number listed in the NPPES registry for William Isenstein is (301) 556-1960.

Is William Isenstein's NPI active?

Yes — William Isenstein's NPI (1114201985) is active in the NPPES registry as of the last update on 2011-09-28.

IndividualActive

William Isenstein, R.PH.

NPI 1114201985 · Pharmacist · Gaithersburg, MD

William Isenstein, R.PH. is a Pharmacist provider in Gaithersburg, MD (NPI 1114201985).

Provider details

NPI number: 1114201985
Entity type: Individual
Primary specialty: PharmacistPharmacy Service Providers
Credential: R.PH.
Sex: Male
Sole proprietor: No
License: 09704 (MD)

Specialties & taxonomies

PharmacistPrimary183500000XLicense 09704 (MD)
Pharmacy Service Providers

Profile Score

Detailed profile(81/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
14 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

880 Russell Ave

Gaithersburg, MD 20879-3506

Phone: (301) 556-1960

Fax: (301) 556-1967

Street-level locationGet directions

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Mailing address