npidata.org Sign in
Products
Provider RadarWatch an area and specialty — weekly alerts on new cliniciansPractice RadarWeekly alerts when new organisations register nearbySpecialtiesEvery NUCC taxonomy, with counts by state and cityStatesProvider counts and breakdowns for all 50 statesPhysician listsMDs and DOs with addresses and phone numbersNP listsNurse practitioners, the fastest-growing groupAPIJSON, delta feed, free tier
Use cases
Healthcare sales prospectingPhysician recruiting and locum staffingMedical device sales territory planningCredentialing and provider verificationHealthcare marketing lists and audience buildingPharmaceutical sales and prescriber targeting
Account
Start freeThree radars and an export a month Sign in Pricing
Explore
Data Labs API
About
About usTermsPrivacyContact us

Search › Michigan › Primary Care Nurse Practitioner

Mary Krzystowczyk, NP

NPI 1912504978 · on the registry since 2020 · sole proprietor

Practice

Address
1105 Sixth St
Traverse City, MI 49684
Phone
(231) 935-5000
Organisation at this address
Munson Medical Group
Munson Medical Group
Munson Medical Center
Munson Medical Center
Munson Medical Center
Inferred from a shared address, not stated in the registry.
Clinicians at this address
262

Registry record

Primary taxonomy
Primary Care Nurse Practitioner
363LP2300X
Also registered as
Gerontology Nurse Practitioner
Primary Care Nurse Practitioner
Licence states on file
MI, CO
From the registry's licence fields, which are often incomplete.
Sex
Female
Record last updated
2026-07-16

Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in Michigan