Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Karen J Greene, APRN

Q: What is the NPI number for Karen Greene?

The National Provider Identifier (NPI) for Karen Greene is 1528531969, a Type 1 (individual) record in the CMS NPPES registry.

Psychiatric/Mental Health Nurse Practitioner in Temple, NH · enumerated 2019 · practices at Mountainside Healthcare LLC.

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

National Provider Identifier

1528531969

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Registry record

Entity type Individual (Type 1)

Name Karen J Greene

Credential APRN

Sex Female

Practice address Temple, NH, 03084

Phone (351) 322-5447

Fax (351) 207-4358

Enumeration date Jan 8, 2019

Last updated in NPPES Feb 24, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License CNP241095 (ME) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 101.0137261 (VT) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License A170454 (IA) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License A170454 (IA) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 052432-23 (NH) Primary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License CNP241095 (ME) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN255864 (MA) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 052432-23 (NH) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN255864 (MA) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 101.0137261 (VT) Secondary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN 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

Where does Karen Greene practice?

The practice location on file with NPPES is in Temple, NH. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Karen Greene?

The National Provider Identifier (NPI) for Karen Greene is 1528531969, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Mountainside Healthcare LLC Psychiatric/Mental Health Nurse Practitioner · Temple, NH NPI 1710832696

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-24.