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 › Ohio › 171M00000X

John Dawson, OCPSA

NPI 1689385122 · on the registry since 2022

Practice

Address
455 E Mound St
Lenora Isaacs
Columbus, OH 43215
Phone
(614) 252-7987
Fax
(614) 252-7987
Organisation at this address
Amythest
Alvis Inc
Amethyst, Inc.
Amethyst, Inc.
Inferred from a shared address, not stated in the registry.
Clinicians at this address
49

Registry record

Primary taxonomy
171M00000X
171M00000X
Also registered as
405300000X
Licence states on file
OH
From the registry's licence fields, which are often incomplete.
Sex
Male
Record last updated
2025-11-04

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 Ohio