Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Denise Viekman, NP

Nurse Practitioner in Portland, ME · enumerated 2006.

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

National Provider Identifier

1295789329

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Registry record

Entity type Individual (Type 1)

Name Mrs. Denise Viekman

Credential NP

Sex Female

Practice address 195 Fore River Pkwy, Suite 410, Portland, ME, 04102

Phone (207) 774-9839

Fax (207) 761-2127

Enumeration date May 22, 2006

Last updated in NPPES Jan 13, 2015

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R037445 (ME) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Denise Viekman?

Denise Viekman is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Nena Ragay-Lundkvist Family Medicine Physician · Portland, ME NPI 1104822709 Elizabeth Gittinger Obstetrics & Gynecology Physician · Portland, ME NPI 1467445460 Suzanne Hoekstra Surgery Physician · Portland, ME NPI 1508840216 Sonya Mcnamara Medical Physician Assistant · Portland, ME NPI 1245290394 Jonathan Musmand Allergy & Immunology Physician · Portland, ME NPI 1982652707 Robert Sigler Specialist · Portland, ME NPI 1649218405 Barbara Chilmonczyk Specialist · Portland, ME NPI 1497793210 Shannon Meredith Podiatrist · Portland, ME NPI 1407897614

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-01-13.