NPPES file of Aug 9, 2026

Gian C. Daroach, MD

Internal Medicine Physician · Marinette, WI

Gian C. Daroach, MD is an internal medicine physician with a practice address in Marinette, Wisconsin, and NPI 1922113166, issued on Aug 20, 2006. Check the license (Wisconsin 34213, as entered in NPPES) on the Wisconsin Medical Examining Board; 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
1922113166
Name
Gian C. Daroach
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
34213 WI
Self-reported in NPPES; status is on the state search
Practice location
3130 Shore Dr, Marinette, WI 54143
Phone
(715) 735-7421
Enumerated
Aug 20, 2006
Record last updated
Mar 7, 2023
Fax
(715) 735-4601
Medicaid ID
31964700 WI
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 3130 Shore Dr

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

  1. Amjed Abu Muhanna, MDInternal Medicine Physician1861514135
  2. J Flynn, MDSurgery Physician1114032265
  3. Nola Hardy, RDRegistered Dietitian1366586380
  4. Mark Hillesheim, PTPhysical Therapist1174657050
  5. Natalie Lashmet, RNRegistered Nurse1861937153

Verify Gian C. Daroach in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 34213
    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 Wisconsin license search

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3.8 times the Medicare Part D claims of the average internal medicine physician in 2024

12,077 Medicare Part D claims for 610 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 17 claims were for opioids.

  1. Gian Daroach12,077
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium944 claims
  2. Amlodipine Besylate672 claims
  3. Losartan Potassium449 claims
  4. Omeprazole387 claims
  5. Metoprolol Succinate362 claims
  6. Levothyroxine Sodium347 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.

Gian C. Daroach among 2,078 internal medicine physician records in Wisconsin

Gian C. Daroach, MD is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 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 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 46% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2023 · 55% 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 Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

13 internal medicine physician records list a practice address in Marinette

They are 13 of the 452 NPPES records with a practice address in Marinette, and 2,078 internal medicine physician records in Wisconsin.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Amjed Abu Muhanna, MDMarinette, WI 541431861514135
  2. Alok Arora, MD, MRCP(UK) ACUTE MMarinette, WI 541431093121527
  3. Maneet ChathaMarinette, WI 541431508438698
  4. Dragana DurdevicMarinette, WI 541431053969600
  5. Khaled Elkady Hussein, M.DMarinette, WI 541431629474721
  6. Nicole Hiniker, MDMarinette, WI 541431740277151
  7. Kenneth Kellner, MDMarinette, WI 541431720195258
  8. Matthew Kowalke, MDMarinette, WI 541431932605425

Common questions

What is Gian C. Daroach, MD's NPI number?

Gian C. Daroach, MD's National Provider Identifier (NPI) is 1922113166, issued on Aug 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gian C. Daroach, MD located?

The NPPES record lists a practice address at 3130 Shore Dr, Marinette, WI, 54143. Phone: (715) 735-7421. Providers update this record themselves, so call before visiting.

How can I verify Gian C. Daroach, MD's license?

NPPES lists Wisconsin license number 34213, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gian C. Daroach, MD prescribe under Medicare Part D?

In 2024, Gian C. Daroach, MD had 12,077 Medicare Part D claims for 610 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.