Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gretchen E Speed, NP

Nurse Practitioner in Portland, ME · enumerated 2012.

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

National Provider Identifier

1679823272

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Registry record

Entity type Individual (Type 1)

Name Gretchen E Speed

Credential NP

Sex Female

Practice address 180 Park Ave Ste 1, Portland, ME, 04102

Phone (207) 874-2141

Fax (207) 874-2164

Enumeration date Sep 12, 2012

Last updated in NPPES Apr 2, 2025

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License CNP141060 (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

What specialty is Gretchen Speed?

Gretchen Speed 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.

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.

Other providers at this practice address

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Gretchen Pianka Pediatrics Physician · Portland, ME NPI 1013953991 Webb Long Pediatrics Physician · Portland, ME NPI 1023054277 Catherine Gaynor Family Nurse Practitioner · Portland, ME NPI 1790994036 Shulamith Bonham Internal Medicine Physician · Portland, ME NPI 1659568673 Ariel Zodhiates Family Medicine Physician · Portland, ME NPI 1124313911 Kate Woodworth Pediatrics Physician · Portland, ME NPI 1548526379 Megan Waterman Family Medicine Physician · Portland, ME NPI 1477997146 Kevin Sullivan Internal Medicine Physician · Portland, ME NPI 1548608862

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-02.