NPPES file of Aug 9, 2026

Thomas Dale Johnson, M.D.

Gastroenterology Physician · Nevada, IA

Thomas Dale Johnson, M.D. is a gastroenterology physician with a practice address in Nevada, Iowa, and NPI 1639168685, issued on Oct 20, 2005. Check the license (Iowa 27083, as entered in NPPES) on the Iowa Board of Medicine; 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
1639168685
Name
Thomas Dale Johnson
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
27083 IA
Self-reported in NPPES; status is on the state search
Practice location
1102 Dakota CT, Nevada, IA 50201
Phone
(515) 296-2041
Enumerated
Oct 20, 2005
Record last updated
Aug 7, 2025
Medicaid ID
0055798 IA
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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Verify Thomas Dale Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license 27083
    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
Open the Iowa license search

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2.6 times the Medicare Part D claims of the average gastroenterology physician in 2024

2,081 Medicare Part D claims for 824 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.

  1. Thomas Johnson2,081
  2. Specialty average811

Most prescribed

  1. Sod Sulf-Potass Sulf-Mag Sulf492 claims
  2. Omeprazole190 claims
  3. Colestipol Hcl179 claims
  4. Balsalazide Disodium143 claims
  5. Budesonide Dr118 claims
  6. Gavilyte-G96 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: $25.37

1 payment: food and beverage; the largest payer was ShockWave Medical, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thomas Johnson$25.37
  2. Specialty average$5,015.95

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

Thomas Dale Johnson among 122 gastroenterology physician records in Iowa

Thomas Dale Johnson, M.D. is one of 122 gastroenterology physician records with a practice address in Iowa. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 73% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileNo · 69% of these records are
  • Record last updated2025 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Iowa

There are 122 gastroenterology physician records in Iowa.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Laura Dakovich, DOWest Des Moines, IA 502661992826432
  2. Jonathan Fahler, DOWest Des Moines, IA 502661780905729
  3. Christopher Gibbs, MDWest Des Moines, IA 502661619021144
  4. Jon Gibson, M.D.West Des Moines, IA 502661720072507
  5. Joel Hade, M.D.West Des Moines, IA 502661184618720
  6. Shawn Hancock, D.O.West Des Moines, IA 502661467410720
  7. Clayton Jordan, D.O.West Des Moines, IA 502661518306323
  8. Charles Larson, M.D.West Des Moines, IA 502661518952209

Common questions

What is Thomas Dale Johnson, M.D.'s NPI number?

Thomas Dale Johnson, M.D.'s National Provider Identifier (NPI) is 1639168685, issued on Oct 20, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Dale Johnson, M.D. located?

The NPPES record lists a practice address at 1102 Dakota CT, Nevada, IA, 50201. Phone: (515) 296-2041. Providers update this record themselves, so call before visiting.

How can I verify Thomas Dale Johnson, M.D.'s license?

NPPES lists Iowa license number 27083, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Thomas Dale Johnson, M.D. prescribe under Medicare Part D?

In 2024, Thomas Dale Johnson, M.D. had 2,081 Medicare Part D claims for 824 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.