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

Douglas Allen, DO

Individual provider Anesthesiology Physician · NPI 1528098837

Douglas Allen, DO practises Anesthesiology in Nashua, New Hampshire. Graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 2001, 25 years ago. Practices with Granite State Anesthesia Partners, LLC, a 42-clinician group and accepts Medicare assignment. Licensed in New Hampshire.

Years since qualifying
25
Trained at
Des Moines University of Osteopathic Medicine and Health Sciences
Licensed in
NH
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

8 Prospect St Anesthesia Dept
Nashua, NH 03060-3925 Not confirmed with CMS for 11 years — call before visiting
Phone: (603) 889-2624
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 12637 (NH)

Record details

NPI number1528098837
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 3, 2006
Last updated in NPPESJanuary 5, 2015

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolDES MOINES UNIVERSITY OF OSTEOPATHIC MEDICINE AND HEALTH SCIENCES
Graduated 2001 (25 years in practice)
Group practice Granite State Anesthesia Partners, Llc — 42 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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 patients45
Services billed 50 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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 Granite State Anesthesia Partners, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 42 clinicians in the practice; 12 are shown here.

Other providers in Nashua