NPPES file of Aug 9, 2026

Gregory Adam Farris, D.D.S.

General Practice Dentistry · Iowa City, IA

Gregory Adam Farris, D.D.S. is a general practice dentistry with a practice address in Iowa City, Iowa, and NPI 1306392253, issued on Aug 31, 2016. Check the license (Iowa DDS-09308, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1306392253
Name
Gregory Adam Farris
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
DDS-09308 IA
Self-reported in NPPES; status is on the state search
Practice location
801 Newton RD, Iowa City, IA 52242
Phone
(319) 335-7440
Enumerated
Aug 31, 2016
Record last updated
Jun 10, 2026
Fax
(319) 335-7451
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 801 Newton RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Anirudha AgnihotryStudent in an Organized Health Care Education/Training Program1851872857
  2. Brennan AlfordStudent in an Organized Health Care Education/Training Program1306428818
  3. Ahmad Alkhazaleh, BDSGeneral Practice Dentistry1528612827
  4. Manal AlzahraniStudent in an Organized Health Care Education/Training Program1457089641
  5. Noor Asfar, B.D.SStudent in an Organized Health Care Education/Training Program1285317818
  6. Navdeep Asi, M.SC., D.M.DStudent in an Organized Health Care Education/Training Program1285040485

Verify Gregory Adam Farris in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Iowa board licenses this profession
    Search for license DDS-09308
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Iowa license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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86% fewer Medicare Part D claims than the average general practice dentistry in 2024

12 Medicare Part D claims, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Gregory Farris12
  2. Specialty average83

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Gregory Adam Farris among 1,239 general practice dentistry records in Iowa

Gregory Adam Farris, D.D.S. 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 2016, is newer than 77% of them.

  • NPI issued2016 · 77% of these records are older, 21% newer
  • In a Medicare fileYes · 61% of these records are
  • In the CMS Doctors and Clinicians fileNo · 1% of these records are
  • Record last updated2026 · 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.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Steven Armstrong, DDS PHDIowa City, IA 522421598869505
  2. Daniel Caplan, DDS, PHDIowa City, IA 522421205840287
  3. Yvonne Chalkley, DDSIowa City, IA 522421083718084
  4. John Doering, DDSIowa City, IA 522421528162526
  5. Ronald Elvers, DDSIowa City, IA 522421790889798
  6. Jeffrey Grimley, D.D.S.Iowa City, IA 522421538153440
  7. Sandra Guzmon-Armstrong, DDS MSIowa City, IA 522421386748036
  8. Maria Hernandez, DDS MSIowa City, IA 522421235233925

Common questions

What is Gregory Adam Farris, D.D.S.'s NPI number?

Gregory Adam Farris, D.D.S.'s National Provider Identifier (NPI) is 1306392253, issued on Aug 31, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Adam Farris, D.D.S. located?

The NPPES record lists a practice address at 801 Newton RD, Iowa City, IA, 52242. Phone: (319) 335-7440. Providers update this record themselves, so call before visiting.

How can I verify Gregory Adam Farris, D.D.S.'s license?

NPPES lists Iowa license number DDS-09308, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.

How much does Gregory Adam Farris, D.D.S. prescribe under Medicare Part D?

In 2024, Gregory Adam Farris, D.D.S. had 12 Medicare Part D claims; the average among general practice dentistry prescribers was 83. Part D covers Medicare prescriptions 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.