NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Christopher Pluym, M.D.

Pulmonary Disease Physician in St Johnsbury, VT · enumerated 2011.

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

National Provider Identifier

1942597489

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Mark Christopher Pluym
Credential M.D.
Sex Male
Practice address 1290 Hospital Dr Lowr Level, St Johnsbury, VT, 05819
Phone (802) 745-6800
Fax (802) 748-7451
Enumeration date Jul 5, 2011
Last updated in NPPES Jul 14, 2025

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 042.0018193 (VT) Primary
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
3149226 Medicaid NH -
6719890 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

Where does Mark Pluym practice?
The practice location on file with NPPES is in St Johnsbury, VT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mark Pluym?
The National Provider Identifier (NPI) for Mark Pluym is 1942597489, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-14.