John N. Kersteff, M.D.
Internal Medicine Physician · Plainfield, IN
John N. Kersteff, M.D. is an internal medicine physician with a practice address in Plainfield, Indiana, and NPI 1942295936, issued on Sep 15, 2005. Check the license (Indiana 01046710A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- John N. Kersteff
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 01046710A IN
Self-reported in NPPES; status is on the state search - Practice location
- 1100 Southfield Dr, Plainfield, IN 46168
- Phone
- (317) 838-3443
- Enumerated
- Sep 15, 2005
- Record last updated
- Mar 5, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (317) 838-3444
- Medicaid ID
- 200144150A IN
- Medicare enrollment
- Enrolled (PECOS I20060531000001); may accept Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 1993
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,109 in Indiana → Look up another NPI →
Also registered at 1100 Southfield Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Audrey Abell, M.D.Internal Medicine Physician1457346579
- David Baugh, MDFamily Medicine Physician1205835758
- Morgan Benjamin, DPTPhysical Therapist1134896996
- Linda Decesare, MDInternal Medicine Physician1083825202
- Stephen Heeger, D.O.Family Medicine Physician1114926623
- Maureen Huff, MDOccupational Medicine Physician1548398258
Verify John N. Kersteff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01046710ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.2 times the Medicare Part D claims of the average internal medicine physician in 2024
13,188 Medicare Part D claims for 762 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. 468 claims were for opioids.
Most prescribed
- Atorvastatin Calcium675 claims
- Pantoprazole Sodium415 claims
- Amlodipine Besylate414 claims
- Lisinopril352 claims
- Levothyroxine Sodium347 claims
- Metoprolol Succinate341 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: $82.49
5 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. 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
- Hendricks County HospitalPlainfield, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John N. Kersteff among 2,109 internal medicine physician records in Indiana
John N. Kersteff, M.D. is one of 2,109 internal medicine physician records with a practice address in Indiana. 85% 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, 87% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1993 · median 2005 among the 1,448 with a school on file
- Record last updated2021 · 43% 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 Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 internal medicine physician records list a practice address in Plainfield
They are 12 of the 692 NPPES records with a practice address in Plainfield, and 2,109 internal medicine physician records in Indiana.
All 2,109 in Indiana → Every provider in Plainfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Audrey Abell, M.D.Plainfield, IN 461681457346579
- Sara Cook, MDPlainfield, IN 461681588823694
- Linda Decesare, MDPlainfield, IN 461681083825202
- Vada Durr-Stein, MDPlainfield, IN 461681639365943
- Tyler Fromm, MDPlainfield, IN 461681104238435
- Kelly Glover, MDPlainfield, IN 461681952550667
- Juan Mejia Garces, M.D.Plainfield, IN 461681679883771
- William NorthquistPlainfield, IN 461681104405349
Common questions
What is John N. Kersteff, M.D.'s NPI number?
John N. Kersteff, M.D.'s National Provider Identifier (NPI) is 1942295936, issued on Sep 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John N. Kersteff, M.D. located?
The NPPES record lists a practice address at 1100 Southfield Dr, Plainfield, IN, 46168. Phone: (317) 838-3443. Providers update this record themselves, so call before visiting.
How can I verify John N. Kersteff, M.D.'s license?
NPPES lists Indiana license number 01046710A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John N. Kersteff, M.D. prescribe under Medicare Part D?
In 2024, John N. Kersteff, M.D. had 13,188 Medicare Part D claims for 762 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.