What is Karen Duzy's NPI number?

Karen Duzy's National Provider Identifier (NPI) is 1447203815, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Karen Duzy's specialty?

Karen Duzy is listed in the NPPES registry with a primary specialty of Primary Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).

Where is Karen Duzy located?

Karen Duzy's practice location on file with NPPES is 40 Sunshine Cottage Rd, Valhalla, NY 10595-1524.

What is Karen Duzy's phone number?

The practice phone number listed in the NPPES registry for Karen Duzy is (914) 594-4237.

Is Karen Duzy's NPI active?

Yes — Karen Duzy's NPI (1447203815) is active in the NPPES registry as of the last update on 2016-10-07.

IndividualActive

Karen Duzy, ARNP

NPI 1447203815 · Primary Care Nurse Practitioner · Valhalla, NY

Karen Duzy, ARNP is a Primary Care Nurse Practitioner provider in Valhalla, NY (NPI 1447203815).

Provider details

NPI number: 1447203815
Entity type: Individual
Primary specialty: Primary Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Credential: ARNP
Sex: Female
Sole proprietor: No
License: F330985 (NY)

Specialties & taxonomies

Primary Care Nurse PractitionerPrimary363LP2300XLicense F330985 (NY)
Physician Assistants & Advanced Practice Nursing Providers
Family Nurse Practitioner363LF0000XLicense F330985 (NY)
Physician Assistants & Advanced Practice Nursing Providers
Primary Care Nurse Practitioner363LP2300XLicense 9359526 (FL)
Physician Assistants & Advanced Practice Nursing Providers
Family Nurse Practitioner363LF0000XLicense 9359526 (FL)
Physician Assistants & Advanced Practice Nursing Providers
Family Nurse Practitioner363LF0000XLicense 6569 (CT)
Physician Assistants & Advanced Practice Nursing Providers

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

40 Sunshine Cottage Rd

Nymc Health Services

Valhalla, NY 10595-1524

Phone: (914) 594-4237

Street-level locationGet directions

More NY providers

Mailing address

30 Putnam Grn Apt H

Greenwich, CT 06830-6059

Enumerated: 2006-05-18
Last updated: 2016-10-07

Frequently asked questions

What is Karen Duzy's NPI number?: Karen Duzy's National Provider Identifier (NPI) is 1447203815, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Karen Duzy's specialty?: Karen Duzy is listed in the NPPES registry with a primary specialty of Primary Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
Where is Karen Duzy located?: Karen Duzy's practice location on file with NPPES is 40 Sunshine Cottage Rd, Valhalla, NY 10595-1524.
What is Karen Duzy's phone number?: The practice phone number listed in the NPPES registry for Karen Duzy is (914) 594-4237.
Is Karen Duzy's NPI active?: Yes — Karen Duzy's NPI (1447203815) is active in the NPPES registry as of the last update on 2016-10-07.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.