Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. John Merrill Severinghaus, M.D.

Internal Medicine Physician in Bradford, VT · enumerated 2007 · practices at Merry Meadow Farm.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1891839403

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Registry record

Entity type Individual (Type 1)

Name Dr. John Merrill Severinghaus

Credential M.D.

Sex Male

Practice address Bradford, VT, 05033

Phone (802) 222-4412

Fax (802) 222-5422

Enumeration date Feb 16, 2007

Last updated in NPPES Sep 11, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License G36863 (CA) Primary

2084A0401X Addiction Medicine (Psychiatry & Neurology) Physician Allopathic & Osteopathic Physicians · License 7237 (NH) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 7237 (NH) Secondary

2084A0401X Addiction Medicine (Psychiatry & Neurology) Physician Allopathic & Osteopathic Physicians Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
00009936	Medicaid	VT	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1891839403 active?

Yes, as of the latest NPPES snapshot, NPI 1891839403 is active (record last updated 2025-09-11).

How do I verify John Severinghaus's NPI record?

Cross-check NPI 1891839403 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Merry Meadow Farm Psychiatric Residential Treatment Facility · Bradford, VT NPI 1073898987 Amy Woodward Mental Health Counselor · Bradford, VT NPI 1598242927 Kelly Woodside Mental Health Counselor · Bradford, VT NPI 1962271734

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.