Individual provider

Kalee Gresko, APRN,FNP-C

Family Nurse Practitioner Medicare enrolled

Kalee Gresko, APRN,FNP-C is a Family Nurse Practitioner in Philadelphia, PA, registered under NPI 1780357293.

Getting there

The practice address on file is 100 S JUNIPER ST FL 3, Philadelphia, PA 19107. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

100 S JUNIPER ST FL 3, Philadelphia, PA 19107 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
SP024129 PA Family Nurse Practitioner primary
71017612A IN Family Nurse Practitioner
116416 NE Family Nurse Practitioner
226189 OK Family Nurse Practitioner
APRN11034598 FL Family Nurse Practitioner
0037119 OH Family Nurse Practitioner
317721 AZ Family Nurse Practitioner

Licences are recorded in 7 states: PA, IN, NE, OK, FL, OH, AZ. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Nurse Practitioner
PAC ID
9032507082

Enrolled in Medicare 2 times, across 2 states:

StateEnrollment IDProvider type
Pennsylvania I20211025003257 Practitioner - Nurse Practitioner
Ohio I20240912002511 Practitioner - Nurse Practitioner

Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. There are 2 separate enrolment records across 2 states (PA, OH). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

Licensed in 7 states

This provider holds licences in 7 states: Arizona, Florida, Indiana, Nebraska, Ohio, Oklahoma and Pennsylvania. The practice address on file is in Philadelphia, PA, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.

AZ Arizona
Licence
317721
Specialty
Family Nurse Practitioner
Verify with the AZ board →
FL Florida
Licence
APRN11034598
Specialty
Family Nurse Practitioner
Verify with the FL board →
IN Indiana
Licence
71017612A
Specialty
Family Nurse Practitioner
Verify with the IN board →
NE Nebraska
Licence
116416
Specialty
Family Nurse Practitioner
Verify with the NE board →
OH Ohio
Licence
0037119
Specialty
Family Nurse Practitioner
Verify with the OH board →
OK Oklahoma
Licence
226189
Specialty
Family Nurse Practitioner
Verify with the OK board →
PA Pennsylvania practice address
Licence
SP024129
Specialty
Family Nurse Practitioner
Verify with the PA board →

Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.

What Family covers

Definition to come... NUCC Health Care Provider Taxonomy, code 363LF0000X
Physician Assistants & Advanced Practice Nursing Providers Nurse Practitioner Family

All registered taxonomy codes

This provider registers 7 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
363LF0000X Family Nurse Practitioner Family SP024129 PA primary
363LF0000X Family Nurse Practitioner Family 71017612A IN
363LF0000X Family Nurse Practitioner Family 116416 NE
363LF0000X Family Nurse Practitioner Family 226189 OK
363LF0000X Family Nurse Practitioner Family APRN11034598 FL
363LF0000X Family Nurse Practitioner Family 0037119 OH
363LF0000X Family Nurse Practitioner Family 317721 AZ

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1780357293 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateJul 29, 2021
Last updatedJan 8, 2026
StatusActive
Sole proprietorNo
CredentialAPRN,FNP-C
Practice address 100 S JUNIPER ST FL 3
Philadelphia, PA 19107
(866) 849-0692
Fax (888) 973-8821
Mailing address PO BOX 211699
Eagan, MN 55121
This record was updated on Jan 8, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1780357293 passes the NPI check digit test The final digit 3 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 7 8 0 3 5 7 2 9
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 7 7 0 6 5 5 2 9

Sum = 67 · next multiple of 10 = 70 · check digit = 3 · actual last digit = 3

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1780357293?
NPI 1780357293 is the National Provider Identifier assigned to Kalee Gresko, APRN,FNP-C in Philadelphia, PA. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Family cover?
Definition to come...
How do I contact Kalee Gresko, APRN,FNP-C?
The phone number on file with NPPES is (866) 849-0692, last updated Jan 8, 2026. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Kalee Gresko, APRN,FNP-C accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1780357293 a valid number?
Yes. 1780357293 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.