Jessica Zemlak
NPI 1740320035 · Nurse Practitioner · Greenfield, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jessica Zemlak is a Nurse Practitioner provider in Greenfield, WI (NPI 1740320035).
Provider details
- NPI number
- 1740320035
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 2941 (WI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Mailing address
Additional practice locations (1)
- 4296 South 76th StreetGreenfield, WI 53220Phone: (866) 825-3227Fax: (484) 351-3800
Registry dates
- Enumerated
- 2007-02-07
- Last updated
- 2022-05-17
- Certified
- 2022-05-17
Frequently asked questions
- What is Jessica Zemlak's NPI number?
- Jessica Zemlak's National Provider Identifier (NPI) is 1740320035, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jessica Zemlak's specialty?
- Jessica Zemlak is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jessica Zemlak located?
- Jessica Zemlak's practice location on file with NPPES is 6901 W Edgerton Ave, Greenfield, WI 53220-4420.
- What is Jessica Zemlak's phone number?
- The practice phone number listed in the NPPES registry for Jessica Zemlak is (414) 325-5244.
- Does Jessica Zemlak accept Medicare?
- Jessica Zemlak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jessica Zemlak's NPI active?
- Yes — Jessica Zemlak's NPI (1740320035) is active in the NPPES registry as of the last update on 2022-05-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.