Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lisa Nielsen, M.D.

Family Medicine Physician in Island Falls, ME · enumerated 2006.

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

National Provider Identifier

1598706970

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Registry record

Entity type Individual (Type 1)

Name Lisa Nielsen

Credential M.D.

Sex Female

Practice address 1300 Crystal Rd, Island Falls, ME, 04747

Phone (207) 463-3600

Fax (207) 463-3603

Enumeration date Jun 9, 2006

Last updated in NPPES Apr 4, 2016

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 013731 (ME) 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
P00301812	Other	ME	RR MEDICARE
203814	Other	ME	NHIC GROUP PTAN
298050099	Medicaid	ME	-
5236796	Other	ME	CIGNA
144828	Other	ME	AETNA GROUP
119411700	Other	ME	FEDERAL W/C GROUP
048673	Other	ME	ANTHEM STAR #
F77297	Other	ME	HARVARD PILGRAM

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 Lisa Nielsen's NPI record?

Cross-check NPI 1598706970 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1598706970 active?

Yes, as of the latest NPPES snapshot, NPI 1598706970 is active (record last updated 2016-04-04).

Other providers at this practice address

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Sharon Walker Registered Nurse · Island Falls, ME NPI 1932431871

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-04-04.