Patrick J. Loehrer, MD
Hematology & Oncology Physician · Indianapolis, IN
Patrick J. Loehrer, MD is a hematology & oncology physician with a practice address in Indianapolis, Indiana, and NPI 1245296847, issued on Apr 22, 2006. Check the license (Indiana 01030846A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Patrick J. Loehrer
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- 01030846A IN
01030846 IN
Self-reported in NPPES; status is on the state search - Practice location
- 535 Barnhill Dr, Indianapolis, IN 46202
- Phone
- (317) 278-7418
- Enumerated
- Apr 22, 2006
- Record last updated
- Mar 25, 2025
- Medicaid ID
- 100073950 IN
- Medicare enrollment
- Enrolled (PECOS I20100303000905); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 245 in Indiana → Look up another NPI →
Also registered at 535 Barnhill Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Huisi AiStudent in an Organized Health Care Education/Training Program1841676582
- Karam Al-Issa, M.D.Hematology & Oncology Physician1720468259
- Fatemeh Ardeshir Larijani, MDHematology (Internal Medicine) Physician1861923500
- Peter Arnold, MDStudent in an Organized Health Care Education/Training Program1346945102
- Francis Asamoah, MDRadiation Oncology Physician1619455987
- Maya Ataya, MDStudent in an Organized Health Care Education/Training Program1639965346
Verify Patrick J. Loehrer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01030846ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
217 Medicare Part D claims for 37 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 26 claims were for opioids.
Most prescribed
- Dexamethasone24 claims
- Creon22 claims
- Olanzapine20 claims
- Eliquis15 claims
- Oxycodone Hcl11 claims
- Prochlorperazine Maleate11 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).
Patrick J. Loehrer among 245 hematology & oncology physician records in Indiana
Patrick J. Loehrer, MD is one of 245 hematology & oncology physician records with a practice address in Indiana. 82% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 47% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1978 · median 2001 among the 177 with a school on file
- Record last updated2025 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Indiana
There are 245 hematology & oncology physician records in Indiana.
All 245 in Indiana → Every provider in Indianapolis → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Asok Antony, MDIndianapolis, IN 462021427013416
- Romnee Clark, M.D.Indianapolis, IN 462021699731117
- Jill Cole, M.D.Indianapolis, IN 462021467424531
- Larry Cripe, MDIndianapolis, IN 462021225094741
- Lawrence Einhorn, MDIndianapolis, IN 462021588629695
- David Gray, M.D.Indianapolis, IN 462021891767802
- Paul Helft, M.D.Indianapolis, IN 462021417912387
- Theodore Logan, MDIndianapolis, IN 462021568428498
Common questions
What is Patrick J. Loehrer, MD's NPI number?
Patrick J. Loehrer, MD's National Provider Identifier (NPI) is 1245296847, issued on Apr 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Patrick J. Loehrer, MD located?
The NPPES record lists a practice address at 535 Barnhill Dr, Indianapolis, IN, 46202. Phone: (317) 278-7418. Providers update this record themselves, so call before visiting.
How can I verify Patrick J. Loehrer, MD's license?
NPPES lists Indiana license number 01030846A, 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 Patrick J. Loehrer, MD prescribe under Medicare Part D?
In 2024, Patrick J. Loehrer, MD had 217 Medicare Part D claims for 37 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.