Doug Johnson
General Practice Dentistry · Iowa City, IA
Doug Johnson is a general practice dentistry with a practice address in Iowa City, Iowa, and NPI 1639575855, issued on Nov 16, 2014. Check the license (Iowa DDS-10255, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Doug Johnson
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License numbers
- DDS-10255 IA
63908 CA
D14139 MN
Self-reported in NPPES; status is on the state search - Practice location
- 801 Newton RD, Iowa City, IA 52242
- Phone
- (319) 335-7499
- Enumerated
- Nov 16, 2014
- Record last updated
- Oct 24, 2025
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 1,239 in Iowa → Look up another NPI →
Also registered at 801 Newton RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anirudha AgnihotryStudent in an Organized Health Care Education/Training Program1851872857
- Brennan AlfordStudent in an Organized Health Care Education/Training Program1306428818
- Ahmad Alkhazaleh, BDSGeneral Practice Dentistry1528612827
- Manal AlzahraniStudent in an Organized Health Care Education/Training Program1457089641
- Noor Asfar, B.D.SStudent in an Organized Health Care Education/Training Program1285317818
- Navdeep Asi, M.SC., D.M.DStudent in an Organized Health Care Education/Training Program1285040485
Verify Doug Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Iowa board licenses this profession
Search for license DDS-10255Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $135.47
1 payment: education; the largest payer was Colgate Oral Pharmaceuticals, Inc. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Doug Johnson among 1,239 general practice dentistry records in Iowa
Doug Johnson is one of 1,239 general practice dentistry records with a practice address in Iowa. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 73% of them.
- NPI issued2014 · 73% of these records are older, 25% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileNo · 1% of these records are
- Record last updated2025 · 76% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
100 general practice dentistry records list a practice address in Iowa City
They are 100 of the 7,163 NPPES records with a practice address in Iowa City, and 1,239 general practice dentistry records in Iowa.
All 1,239 in Iowa → Every provider in Iowa City → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Steven Armstrong, DDS PHDIowa City, IA 522421598869505
- Daniel Caplan, DDS, PHDIowa City, IA 522421205840287
- Yvonne Chalkley, DDSIowa City, IA 522421083718084
- John Doering, DDSIowa City, IA 522421528162526
- Ronald Elvers, DDSIowa City, IA 522421790889798
- Jeffrey Grimley, D.D.S.Iowa City, IA 522421538153440
- Sandra Guzmon-Armstrong, DDS MSIowa City, IA 522421386748036
- Maria Hernandez, DDS MSIowa City, IA 522421235233925
Common questions
What is Doug Johnson's NPI number?
Doug Johnson's National Provider Identifier (NPI) is 1639575855, issued on Nov 16, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Doug Johnson located?
The NPPES record lists a practice address at 801 Newton RD, Iowa City, IA, 52242. Phone: (319) 335-7499. Providers update this record themselves, so call before visiting.
How can I verify Doug Johnson's license?
NPPES lists Iowa license number DDS-10255, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.