Irene Signori, M.D.
Internal Medicine Physician · Dearborn, MI
Irene Signori, M.D. is an internal medicine physician with a practice address in Dearborn, Michigan, and NPI 1336146828, issued on Jun 30, 2005. Check the license (Michigan IS050702, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Irene Signori
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- IS050702 MI
Self-reported in NPPES; status is on the state search - Practice location
- 4900 Mercury Dr, Dearborn, MI 48126
- Phone
- (313) 323-3101
- Enumerated
- Jun 30, 2005
- Record last updated
- Mar 3, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicaid ID
- 3022182 MI
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 4900 Mercury Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Irene Signori in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license IS050702Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average internal medicine physician in 2024
842 Medicare Part D claims for 103 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 13 claims were for opioids.
Most prescribed
- Levothyroxine Sodium59 claims
- Losartan Potassium56 claims
- Atorvastatin Calcium52 claims
- Amlodipine Besylate43 claims
- Lisinopril38 claims
- Metformin Hcl35 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: $42.46
2 payments; by number, the most common kind was food and beverage; the largest payer was Amgen 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Irene Signori among 5,735 internal medicine physician records in Michigan
Irene Signori, M.D. is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% 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, 90% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2008 · 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 207R00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
191 internal medicine physician records list a practice address in Dearborn
They are 191 of the 5,481 NPPES records with a practice address in Dearborn, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Dearborn → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Belal Abdallah, M.D.Dearborn, MI 481261447230941
- Mayada Abdul-Aziz, M.D.Dearborn, MI 481261699755173
- Sami Abufarha, MDDearborn, MI 481261104895697
- Raad Alsaraf, MDDearborn, MI 481261851399471
- Vijayalakshmi Arunachalam, MDDearborn, MI 481261790764587
- Eliezer De Leon, M.D.Dearborn, MI 481261578536009
- Allan Dobzyniak, M.D.Dearborn, MI 481261609856871
- Walid Harb, MDDearborn, MI 481261710966569
Common questions
What is Irene Signori, M.D.'s NPI number?
Irene Signori, M.D.'s National Provider Identifier (NPI) is 1336146828, issued on Jun 30, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Irene Signori, M.D. located?
The NPPES record lists a practice address at 4900 Mercury Dr, Dearborn, MI, 48126. Phone: (313) 323-3101. Providers update this record themselves, so call before visiting.
How can I verify Irene Signori, M.D.'s license?
NPPES lists Michigan license number IS050702, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Irene Signori, M.D. prescribe under Medicare Part D?
In 2024, Irene Signori, M.D. had 842 Medicare Part D claims for 103 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.