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

Dr. Stephen John Regan, MD

Individual provider Hospitalist Physician · NPI 1336127000

Dr. Stephen John Regan, MD is a Hospitalist in Plymouth, New Hampshire. Graduated from Boston University School of Medicine in 1996, 30 years ago. Practices with Weeks Medical Center, a 69-clinician group and accepts Medicare assignment. Licensed in New Hampshire.

Years since qualifying
30
Trained at
Boston University School of Medicine
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

101 Boulder Point Dr Ste 1
Plymouth, NH 03264-3170
Phone: (603) 536-4000
Fax: (603) 536-4001
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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 10663 (NH)
Hospitalist Physician Taxonomy 208M00000X · Licence 10663 (NH)

Record details

NPI number1336127000
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 4, 2006
Last updated in NPPESJuly 27, 2020
Certification dateJuly 27, 2020

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Medical schoolBOSTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1996 (30 years in practice)
Group practice Weeks Medical Center — 69 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients36
Services billed 66 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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 Weeks Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 69 clinicians in the practice; 12 are shown here.