Ferdinand J. Korneli, DO
Internal Medicine Physician · Grayling, MI
Ferdinand J. Korneli, DO is an internal medicine physician with a practice address in Grayling, Michigan, and NPI 1225054943, issued on Jul 14, 2006. Check the license (Michigan 5101010337, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Ferdinand J. Korneli
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 5101010337 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1200 W North Down River RD Ste C, Grayling, MI 49738
- Phone
- (989) 344-5910
- Enumerated
- Jul 14, 2006
- Record last updated
- Dec 21, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (231) 935-3463
- Medicaid IDs
- 4327831 MI
2879522 MI - Medicare enrollment
- Enrolled (PECOS I20040809000942); accepts Medicare assignment
- Medical or professional school
- Des Moines University Of Osteopathic Medicine And Health Sciences, 1988
- Entity
- Type 1 · individual
Also registered at 1200 W North Down River RD Ste C
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brianna Edson, PA-CPhysician Assistant1003448846
Verify Ferdinand J. Korneli in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101010337Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.5 times the Medicare Part D claims of the average internal medicine physician in 2024
14,220 Medicare Part D claims for 662 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 1,132 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen648 claims
- Atorvastatin Calcium576 claims
- Amlodipine Besylate493 claims
- Levothyroxine Sodium440 claims
- Omeprazole407 claims
- Lisinopril395 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: $248.20
13 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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.
Bills Medicare through one group practice
- Munson Healthcare GraylingGrayling, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
5 internal medicine physician records list a practice address in Grayling
They are 5 of the 233 NPPES records with a practice address in Grayling, and 5,735 internal medicine physician records in Michigan.
All 5 in Grayling → All 5,735 in Michigan → Every provider in Grayling →
Other internal medicine physician records in Michigan
- Jamie Therese Abad, MDDetroit, MI1700573359
- Tomas Abalo, M.D.Iron Mountain, MI1336199975
- Ali Abbas, M.D.Pontiac, MI1972167526
- Sura Abbas, MDWarren, MI1801687405
- Ramzi Abbasi, MDSaginaw, MI1164270005
- Saadat Abbasi, MDKalamazoo, MI1912005596
- Shahzaman Abbasi, MDLansing, MI1376512111
- Youssef Abbiss, D.O.Mount Clemens, MI1982991881
- Valerie Abbott, MDSouthfield, MI1740289487
- Samer Abboud, MDSaginaw, MI1245804178
Common questions
What is Ferdinand J. Korneli, DO's NPI number?
Ferdinand J. Korneli, DO's National Provider Identifier (NPI) is 1225054943, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ferdinand J. Korneli, DO located?
The NPPES record lists a practice address at 1200 W North Down River RD Ste C, Grayling, MI, 49738. Phone: (989) 344-5910. Providers update this record themselves, so call before visiting.
How can I verify Ferdinand J. Korneli, DO's license?
NPPES lists Michigan license number 5101010337, 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 Ferdinand J. Korneli, DO prescribe under Medicare Part D?
In 2024, Ferdinand J. Korneli, DO had 14,220 Medicare Part D claims for 662 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.