NPPES file of Aug 9, 2026

David Solomon De Guzman Chua

Internal Medicine Physician · Hawarden, IA

David Solomon De Guzman Chua is an internal medicine physician with a practice address in Hawarden, Iowa, and NPI 1023268646, issued on Sep 19, 2008. Check the license (Iowa MD-40680, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1023268646
Name
David Solomon De Guzman Chua
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
MD-40680 IA
40680 IA
Self-reported in NPPES; status is on the state search
Practice location
1122 Avenue L, Hawarden, IA 51023
Phone
(712) 551-3400
Enumerated
Sep 19, 2008
Record last updated
Jun 15, 2022
Fax
(712) 551-2691
Medicare enrollment
Enrolled (PECOS I20150113002204); accepts Medicare assignment
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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Verify David Solomon De Guzman Chua in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license MD-40680
    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

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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9% more Medicare Part D claims than the average internal medicine physician in 2024

3,466 Medicare Part D claims for 262 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 87 claims were for opioids.

  1. David Solomon Chua3,466
  2. Specialty average3,176

Most prescribed

  1. Levothyroxine Sodium157 claims
  2. Atorvastatin Calcium154 claims
  3. Furosemide141 claims
  4. Rosuvastatin Calcium132 claims
  5. Amlodipine Besylate121 claims
  6. Metoprolol Succinate117 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.

The MIPS final score for 2023 (Medicare payment program): 94 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score84.8
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%98.2
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $276.59

17 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. David Solomon Chua$276.59
  2. Specialty average$1,303.06

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

2 hospitals and group practices

  1. Hawarden Regional HealthcareHawarden, IA · Critical Access Hospitals
  2. Hawarden Regional Healthcare Clinics LLCHawarden, IA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).

David Solomon De Guzman Chua among 871 internal medicine physician records in Iowa

David Solomon De Guzman Chua is one of 871 internal medicine physician records with a practice address in Iowa. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 42% of them.

  • NPI issued2008 · 42% of these records are older, 56% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileYes · 44% of these records are
  • Graduated2013 · median 2008 among the 386 with a school on file
  • Record last updated2022 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1 internal medicine physician record lists a practice address in Hawarden

They are 1 of the 30 NPPES records with a practice address in Hawarden, and 871 internal medicine physician records in Iowa.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Peter Anderson, M.D.Sioux City, IA 511011114967858
  2. Amy Callaghan, DOSioux City, IA 511011215924964
  3. Steven Feeney, M.D.Sioux City, IA 511011649208604
  4. Neha Mehta, M.D.Sioux City, IA 511011346774940
  5. Manju Pillai, MDSioux City, IA 511011275843575
  6. Sandeep Pulimi, MDSioux City, IA 511011730429408
  7. Anukul Roy, MDSioux City, IA 511011568625796
  8. Frederick Stack, MDSioux City, IA 511011548256977

Common questions

What is David Solomon De Guzman Chua's NPI number?

David Solomon De Guzman Chua's National Provider Identifier (NPI) is 1023268646, issued on Sep 19, 2008. An NPI identifies a provider in billing; it is not a license.

Where is David Solomon De Guzman Chua located?

The NPPES record lists a practice address at 1122 Avenue L, Hawarden, IA, 51023. Phone: (712) 551-3400. Providers update this record themselves, so call before visiting.

How can I verify David Solomon De Guzman Chua's license?

NPPES lists Iowa license number MD-40680, 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 David Solomon De Guzman Chua prescribe under Medicare Part D?

In 2024, David Solomon De Guzman Chua had 3,466 Medicare Part D claims for 262 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is David Solomon De Guzman Chua's MIPS final score?

The 2023 MIPS final score is 94 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.