Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

John L Alexander, MD

Individual provider Internal Medicine Physician · NPI 1144259508

John L Alexander, MD practises Internal Medicine in Nashua, New Hampshire. Qualified in 2000, 26 years ago. Practices with Foundation Medical Partners Inc, a 311-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New Hampshire.

Years since qualifying
26
Licensed in
NH
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

17 Prospect St
Nashua, NH 03060-3956 Not confirmed with CMS for 12 years — call before visiting
Phone: (603) 594-6337
Fax: (603) 594-6330
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 13445 (NH)
Pediatrics Physician Taxonomy 208000000X · Licence 13445 (NH)

Record details

NPI number1144259508
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 30, 2006
Last updated in NPPESApril 7, 2014

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2000 (26 years in practice)
Group practice Foundation Medical Partners Inc — 311 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients90
Services billed 292 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Foundation Medical Partners Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 311 clinicians in the practice; 12 are shown here.

Other providers in Nashua