John Marsella
Pharmacist · Groton, CT
John Marsella is a pharmacist with a practice address in Groton, Connecticut, and NPI 1548784259, issued on Aug 3, 2017. Check the license (Connecticut 7927, as entered in NPPES) with the Connecticut board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Marsella
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 7927 CT
Self-reported in NPPES; status is on the state search - Practice location
- 220 Route 12, Groton, CT 06340
- Phone
- (860) 445-8807
- Enumerated
- Aug 3, 2017
- Record last updated
- Aug 3, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (860) 445-8807
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 3,247 in Connecticut → Look up another NPI →
Also registered at 220 Route 12
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joanna Breton, APRNFamily Nurse Practitioner1063997245
- Kilbourn Gordon, MDGeneral Practice Physician1952455693
- Rodney Harvey, IDCIndependent Duty Corpsman1487063764
- Olivia Hunt, PHARMDPharmacist1487347449
- Zachary Jupin, PA-CMedical Physician Assistant1396186631
- David McCormick, PACMedical Physician Assistant1437253655
Verify John Marsella in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 7927Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John Marsella among 3,247 pharmacist records in Connecticut
John Marsella is one of 3,247 pharmacist records with a practice address in Connecticut. 7% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2017, is newer than 48% of them.
- NPI issued2017 · 48% of these records are older, 43% newer
- In a Medicare fileNo · 7% of these records are
- In the CMS Doctors and Clinicians fileNo · 0% of these records are
- Record last updated2017 · 76% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 183500000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
40 pharmacist records list a practice address in Groton
They are 40 of the 734 NPPES records with a practice address in Groton, and 3,247 pharmacist records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3,247 in Connecticut → Every provider in Groton → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Brianna Ba, PHARMDGroton, CT 063401750820023
- Lauri Cole, B.S., R.PH.Groton, CT 063401619184215
- Alyssa Horton, PHARM.DGroton, CT 063401790068559
- Jan JensGroton, CT 063401134665318
- Diane KearneyGroton, CT 063401922384841
- Janet Mattiucci, RPHGroton, CT 063401740738475
- Jeffrey Messina, RPHGroton, CT 063401750441473
- Renay Miller, BSC(PHARMACY)Groton, CT 063401154528214
Common questions
What is John Marsella's NPI number?
John Marsella's National Provider Identifier (NPI) is 1548784259, issued on Aug 3, 2017. An NPI identifies a provider in billing; it is not a license.
Where is John Marsella located?
The NPPES record lists a practice address at 220 Route 12, Groton, CT, 06340. Phone: (860) 445-8807. Providers update this record themselves, so call before visiting.
How can I verify John Marsella's license?
NPPES lists Connecticut license number 7927, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.