Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kristen B Silvia, MD

Addiction Medicine (Family Medicine) Physician in Portland, ME · enumerated 2006.

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

National Provider Identifier

1538103478

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Registry record

Entity type Individual (Type 1)

Name Kristen B Silvia

Credential MD

Sex Female

Practice address 576 Saint John St, Portland, ME, 04102

Phone (207) 661-0700

Fax (207) 536-6720

Enumeration date Jun 15, 2006

Last updated in NPPES Jan 27, 2026

Taxonomy & licenses

207QA0401X Addiction Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License MD17120 (ME) Primary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License MD17120 (ME) 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
30208129	Medicaid	NH	-
293280099	Medicaid	ME	-

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.

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Frequently asked questions

How do I verify Kristen Silvia's NPI record?

Cross-check NPI 1538103478 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1538103478 active?

Yes, as of the latest NPPES snapshot, NPI 1538103478 is active (record last updated 2026-01-27).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-27.