DR. JOHN MERRILL SEVERINGHAUS (M.D.) – Internal Medicine Physician, NPI 1891839403

Internal Medicine Physician

DR. JOHN MERRILL SEVERINGHAUS (M.D.) is a healthcare provider. based in Norwich, Vermont. specializing in Internal Medicine Physician. They hold the professional credentials M.D.. They hold a License No. G36863 (CA). The NPI Number for DR. JOHN MERRILL SEVERINGHAUS (M.D.) is 1891839403

Main info

Male

Sole Proprietor

54 Years Of Experience

Accepts Medicare Assignment

Name

DR. JOHN MERRILL SEVERINGHAUS (M.D.)

NPI

1891839403

Phone

(802) 649-1323

Address

PO BOX 234

Enumeration Date

16 February 2007

Last Update Date

11 September 2025

Doctor Profile

Medical School Name

COLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS

Secondary Phone

8022816364

Graduation Year

1972 (54 years ago)

PAC ID

3678744810

Group Practice PAC ID

9234411422

Professional Enrollment ID

I20110920000877

Data current as of

19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience71

Completeness85

Years active:19State licenses:2Digital endpointsOther names

Provider Addresses for DR. JOHN MERRILL SEVERINGHAUS (M.D.)

PO BOX 234
NORWICH, VT 050550234
Phone: (802) 649-1323
Fax: (802) 649-1323
Type: Mailing
2122 LOWER PLN
MERRY MEADOW FARM
BRADFORD, VT 050338936
Phone: (802) 222-4412
Fax: (802) 222-5422
Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 05055)

Loading plans...

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.

PAC ID: 9234411422View full group profile

Name	Specialty	State
FREDERICK HESSE	Addiction Medicine	VT
KRISTEN MARIE SHEEHAN (APRN)	Nurse Practitioner	VT
CRAIG SMITH (LADC, LICSW)	Clinical Social Worker	VT

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

What is the standard ID for DR. JOHN MERRILL SEVERINGHAUS (M.D.) in the U.S.?

In the U.S., DR. JOHN MERRILL SEVERINGHAUS (M.D.) is identified by NPI 1891839403.

Is DR. JOHN MERRILL SEVERINGHAUS (M.D.) currently accepting referrals based on NPI status?

Registry metadata lists DR. JOHN MERRILL SEVERINGHAUS (M.D.) as active.

What services align with DR. JOHN MERRILL SEVERINGHAUS (M.D.)'s listing?

DR. JOHN MERRILL SEVERINGHAUS (M.D.)'s public classification highlights Internal Medicine Physician. Clinical services aligned with this taxonomy classification.

What city is tied to DR. JOHN MERRILL SEVERINGHAUS (M.D.)?

The directory associates DR. JOHN MERRILL SEVERINGHAUS (M.D.) with Norwich, Vermont. Check all listed addresses for suites or satellite offices.

Why is information missing for DR. JOHN MERRILL SEVERINGHAUS (M.D.)?

Providers choose how much contact data to publish. Missing fields do not mean the profile is fake.