NPPES file of Aug 9, 2026

David G. Gratton, DDS

Prosthodontics · Iowa City, IA

David G. Gratton, DDS is a prosthodontics with a practice address in Iowa City, Iowa, and NPI 1962506667, issued on Sep 12, 2006. Check the license (Iowa 40059, 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
1962506667
Name
David G. Gratton
Credential
DDS
Primary taxonomy
Prosthodontics 1223P0700X
License number
40059 IA
Self-reported in NPPES; status is on the state search
Practice location
322 S Dental Science Bldg, Iowa City, IA 52242
Phone
(319) 335-7440
Enumerated
Sep 12, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(319) 335-7451
Medicaid ID
0246553 IA
Medicare enrollment
Enrolled (PECOS I20130318000362); accepts Medicare assignment
Medical or professional school
University Of Michigan School Of Dentistry, 1994
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 322 S Dental Science Bldg

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

  1. Steven Aquilino, DDS MSProsthodontics1780788786
  2. Steven Armstrong, DDS PHDGeneral Practice Dentistry1598869505
  3. Marie Eve Asselin, DMD MSC FRCDCOral and Maxillofacial Pathology Dentistry1275732968
  4. Murray Bouschlicher, DDSDentist1750485769
  5. John Casko, DDS MA PHDOrthodontics and Dentofacial Orthopedics Dentistry1538263538
  6. Yvonne Chalkley, DDSGeneral Practice Dentistry1083718084

Verify David G. Gratton 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 40059
    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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26% more Medicare Part D claims than the average prosthodontics in 2024

113 Medicare Part D claims for 24 beneficiaries, against an average of 90 among the 1,779 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. David Gratton113
  2. Specialty average90

Most prescribed

  1. Sodium Fluoride61 claims
  2. Chlorhexidine Gluconate26 claims

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.

Industry payments in 2024: $4,253.67

5 payments; by number, the most common kind was compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program; the largest payer was Straumann USA LLC. The 1,408 providers of this specialty with any payment received $3,465.28 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. David Gratton$4,253.67
  2. Specialty average$3,465.28

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. State University OF IowaIowa City, IA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

David G. Gratton among 52 prosthodontics records in Iowa

David G. Gratton, DDS is one of 52 prosthodontics records with a practice address in Iowa. 35% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 67% newer
  • In a Medicare fileYes · 35% of these records are
  • In the CMS Doctors and Clinicians fileYes · 6% of these records are
  • Record last updated2007 · 81% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0700X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Prosthodontics providers in Iowa

There are 52 prosthodontics records in Iowa.

The 8 prosthodontics records with the nearest ZIP codes

  1. Steven Aquilino, DDS MSIowa City, IA 522421780788786
  2. Paul Aubrey, DDSIowa City, IA 522421598741332
  3. Ana Diaz-Arnold, DDSIowa City, IA 522421346344348
  4. Emad Estafanous, BDSIowa City, IA 522421356425524
  5. Ronald Ettinger, BDS MDS DDSCIowa City, IA 522421164526166
  6. Julie Holloway, D.D.S, M.S.Iowa City, IA 522421306995840
  7. Yung-Shen Huang, DDS MSIowa City, IA 522421306940093
  8. Terry Lindquist, DDS MSIowa City, IA 522421114021128

Common questions

What is David G. Gratton, DDS's NPI number?

David G. Gratton, DDS's National Provider Identifier (NPI) is 1962506667, issued on Sep 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David G. Gratton, DDS located?

The NPPES record lists a practice address at 322 S Dental Science Bldg, Iowa City, IA, 52242. Phone: (319) 335-7440. Providers update this record themselves, so call before visiting.

How can I verify David G. Gratton, DDS's license?

NPPES lists Iowa license number 40059, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.

How much does David G. Gratton, DDS prescribe under Medicare Part D?

In 2024, David G. Gratton, DDS had 113 Medicare Part D claims for 24 beneficiaries; the average among prosthodontics prescribers was 90. 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.