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 › Illinois › 101YM0800X

Derek Martz

NPI 1346164647 · on the registry since 2026 · sole proprietor

Practice

Address
30 N Michigan Ave Ste 901
Chicago, IL 60602
Phone
(312) 339-8604
Organisation at this address
Gortho Ltd
Dawn Living
Walgreen Co
Deborah Moss
Lb Barry Pllc
Inferred from a shared address, not stated in the registry.
Clinicians at this address
375

Registry record

Primary taxonomy
101YM0800X
101YM0800X
Sex
Male
Record last updated
2026-08-07

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 Illinois