Individual provider

Vaughn Deforest, M.D.

Hospitalist Physician Internal Medicine Physician

Vaughn Deforest, M.D. is a Hospitalist Physician in Brunswick, ME, registered under NPI 1659389856. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is MID COAST HOSPITAL 123 MEDICAL CENTER DR., Brunswick, ME 04011. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

MID COAST HOSPITAL 123 MEDICAL CENTER DR., Brunswick, ME 04011 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
061028 ME Hospitalist Physician primary
061028 ME Internal Medicine Physician

This provider holds licence 061028 issued in ME. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)

This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.

What Hospitalist covers

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients. NUCC Health Care Provider Taxonomy, code 208M00000X
Allopathic & Osteopathic Physicians Hospitalist

All registered taxonomy codes

This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
208M00000X Hospitalist Physician 061028 ME primary
207R00000X Internal Medicine Physician 061028 ME

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1659389856 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateAug 3, 2006
Last updatedSep 11, 2025
StatusActive
Sole proprietorNo
CredentialM.D.
Practice address MID COAST HOSPITAL
123 MEDICAL CENTER DR.
Brunswick, ME 04011
(207) 373-6086
Fax (207) 373-6080
This record was updated on Sep 11, 2025, which is recent enough that the contact details are likely still accurate.

Number check

1659389856 passes the NPI check digit test The final digit 6 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 6 5 9 3 8 9 8 5
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 6 1 9 6 8 9 8 1

Sum = 74 · next multiple of 10 = 80 · check digit = 6 · actual last digit = 6

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1659389856?
NPI 1659389856 is the National Provider Identifier assigned to Vaughn Deforest, M.D. in Brunswick, ME. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Hospitalist Physician cover?
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for…
How do I contact Vaughn Deforest, M.D.?
The phone number on file with NPPES is (207) 373-6086, last updated Sep 11, 2025. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Is NPI 1659389856 a valid number?
Yes. 1659389856 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.