IndividualActive
Gretchen Sionkiewicz, RPH
NPI 1821379447 · Pharmacist · Marblehead, MA
Gretchen Sionkiewicz, RPH is a Pharmacist provider in Marblehead, MA (NPI 1821379447).
Provider details
- NPI number
- 1821379447
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Credential
- RPH
- Sex
- Female
- Sole proprietor
- No
- License
- PH22676 (MA)
Specialties & taxonomies
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
15 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
89 Pleasant St
Marblehead, MA 01945-3389
Phone: (781) 631-0800
Fax: (781) 631-6723
Street-level locationGet directions
Mailing address
89 Pleasant St
Marblehead, MA 01945-3389
Registry dates
- Enumerated
- 2011-09-09
- Last updated
- 2011-09-09
Frequently asked questions
- What is Gretchen Sionkiewicz's NPI number?
- Gretchen Sionkiewicz's National Provider Identifier (NPI) is 1821379447, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gretchen Sionkiewicz's specialty?
- Gretchen Sionkiewicz is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Gretchen Sionkiewicz located?
- Gretchen Sionkiewicz's practice location on file with NPPES is 89 Pleasant St, Marblehead, MA 01945-3389.
- What is Gretchen Sionkiewicz's phone number?
- The practice phone number listed in the NPPES registry for Gretchen Sionkiewicz is (781) 631-0800.
- Is Gretchen Sionkiewicz's NPI active?
- Yes — Gretchen Sionkiewicz's NPI (1821379447) is active in the NPPES registry as of the last update on 2011-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.