John C. Grotberg, MD
Pulmonary Disease Physician · Indianapolis, IN
John C. Grotberg, MD is a pulmonary disease physician with a practice address in Indianapolis, Indiana, and NPI 1659865079, issued on Jun 19, 2018. Check the license (Indiana 01093052A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- John C. Grotberg
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License numbers
- 01093052A IN
2022034948 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1701 Senate Blvd, Indianapolis, IN 46202
- Phone
- (317) 962-5820
- Enumerated
- Jun 19, 2018
- Record last updated
- Mar 12, 2025
- Fax
- (317) 962-3916
- Medicaid ID
- 300089550 IN
- Medicare enrollment
- Enrolled (PECOS I20240514002816); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 280 in Indiana → Look up another NPI →
Also registered at 1701 Senate Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary Abbas, PA-CPhysician Assistant1174088033
- Julie Amstutz, CAAAnesthesiologist Assistant1609739119
- Judith AtkinsOccupational Therapy Assistant1851308134
- Iram Bakhtawar, MDCritical Care Medicine (Internal Medicine) Physician1598878605
- Alex Baronowsky, MDSurgical Critical Care Physician1952711582
- Edward Bartkus, MDEmergency Medicine Physician1528001484
Verify John C. Grotberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01093052ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
33 Medicare Part D claims for 11 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 76% of 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.
Bills Medicare through one group practice
- IU Health Medical Group LLCIndianapolis, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John C. Grotberg among 280 pulmonary disease physician records in Indiana
John C. Grotberg, MD is one of 280 pulmonary disease physician records with a practice address in Indiana. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 93% of them.
- NPI issued2018 · 93% of these records are older, 4% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated2018 · median 2000 among the 219 with a school on file
- Record last updated2025 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in Indiana
There are 280 pulmonary disease physician records in Indiana.
All 280 in Indiana → Every provider in Indianapolis → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Farzad Loghmani, MDIndianapolis, IN 462021689639130
- Michael Lykens, MDIndianapolis, IN 462021417912478
- Roberto Machado, MDIndianapolis, IN 462021942268172
- David Miller, M.D.Indianapolis, IN 462021194780163
- Michael Niemeier, M.D.Indianapolis, IN 462021831190156
- Scott Roberts, M.D.Indianapolis, IN 462021982605044
- Aruna Sannuti, M.D.Indianapolis, IN 462021073578530
- Francis Sheski, MDIndianapolis, IN 462021225093784
Common questions
What is John C. Grotberg, MD's NPI number?
John C. Grotberg, MD's National Provider Identifier (NPI) is 1659865079, issued on Jun 19, 2018. An NPI identifies a provider in billing; it is not a license.
Where is John C. Grotberg, MD located?
The NPPES record lists a practice address at 1701 Senate Blvd, Indianapolis, IN, 46202. Phone: (317) 962-5820. Providers update this record themselves, so call before visiting.
How can I verify John C. Grotberg, MD's license?
NPPES lists Indiana license number 01093052A, 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 C. Grotberg, MD prescribe under Medicare Part D?
In 2024, John C. Grotberg, MD had 33 Medicare Part D claims for 11 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.