Meredith Leigh Korneffel, M.D.
Internal Medicine Physician · Troy, MI
Meredith Leigh Korneffel, M.D. is an internal medicine physician with a practice address in Troy, Michigan, and NPI 1386677086, issued on Jul 8, 2006. Check the license (Michigan 4301101219, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Meredith Leigh Korneffel
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 4301101219 MI
36116069 IL
Self-reported in NPPES; status is on the state search - Practice location
- 4600 Investment Dr, Troy, MI 48098
- Phone
- (248) 267-5000
- Enumerated
- Jul 8, 2006
- Record last updated
- May 10, 2023
- Fax
- (248) 267-5001
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 4600 Investment Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Meredith Leigh Korneffel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301101219Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
140 Medicare Part D claims for 79 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Rosuvastatin Calcium15 claims
- Levothyroxine Sodium12 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.
Meredith Leigh Korneffel among 5,735 internal medicine physician records in Michigan
Meredith Leigh Korneffel, 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 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 60% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2023 · 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).
117 internal medicine physician records list a practice address in Troy
They are 117 of the 3,809 NPPES records with a practice address in Troy, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Troy → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Rafael Barretto, D.O.Warren, MI 480981942202122
- Michelle Biddinger, MDTroy, MI 480981326015033
- John Bonema, MDTroy, MI 480981508833708
- Mudassir Daimee, M.D.Troy, MI 480981205838307
- James Henderson, MDTroy, MI 480981104895127
- Nadarajan Janakan, M.D.Troy, MI 480981134128812
- Michael Lumberg, MDTroy, MI 480981700853447
- Tony Nguyen, M.D.Troy, MI 480981396741567
Common questions
What is Meredith Leigh Korneffel, M.D.'s NPI number?
Meredith Leigh Korneffel, M.D.'s National Provider Identifier (NPI) is 1386677086, issued on Jul 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Meredith Leigh Korneffel, M.D. located?
The NPPES record lists a practice address at 4600 Investment Dr, Troy, MI, 48098. Phone: (248) 267-5000. Providers update this record themselves, so call before visiting.
How can I verify Meredith Leigh Korneffel, M.D.'s license?
NPPES lists Michigan license number 4301101219, 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 Meredith Leigh Korneffel, M.D. prescribe under Medicare Part D?
In 2024, Meredith Leigh Korneffel, M.D. had 140 Medicare Part D claims for 79 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.