npidata.org
Products
Provider RadarWatch an area and specialty — weekly alerts on new cliniciansPractice RadarWeekly alerts when new organisations register nearbyPhysician 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 Specialties States API

Search › Maryland › Emergency Medical Services (Emergency Medicine) Physician

William Umhau, M.D

NPI 1790731420 · on the registry since 2006

Practice

Address
100 Hospital Rd
Prince Frederick, MD 20678
Phone
(301) 855-1012
Organisation at this address
Mdics At Calvert Llc
Calvert Pathology Llc
Lhmg Medical Group, Llc
Anesthesia Company, Llc
Guy W. Gargour, M.D., P.A.
Inferred from a shared address, not stated in the registry.
Clinicians at this address
80

Registry record

Primary taxonomy
Emergency Medical Services (Emergency Medicine) Physician
207PE0004X
Licence states on file
MD
From the registry's licence fields, which are often incomplete.
Sex
Male
Record last updated
2026-07-13

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 Maryland