Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Alan B Johnston, PA

Individual provider Medical Physician Assistant · NPI 1518976943

Alan B Johnston, PA is a Physician Assistant in Nashua, New Hampshire. Qualified in 1989, 37 years ago. Practices with Cottage Hospital, a 29-clinician group and accepts Medicare assignment. Licensed in New Hampshire.

Years since qualifying
37
Licensed in
NH
In the registry since
2006
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

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Practice location Address checks out

17 Riverside St Ste 101
Nashua, NH 03062-1304
Phone: (603) 883-0091
Fax: (603) 881-3739
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Physician Assistant (primary) Taxonomy 363AM0700X · Licence 0558 (NH)

Record details

NPI number1518976943
Entity typeIndividual (Type 1)
GenderMale
Credentials PA
Sole proprietorNo
NPI enumeratedAugust 5, 2006
Last updated in NPPESOctober 19, 2012

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 1989 (37 years in practice)
Group practice Cottage Hospital — 29 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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