NPPES file of Aug 9, 2026

Mark A. Simaga, MD

Neurology Physician · Hobart, IN

Mark A. Simaga, MD is a neurology physician with a practice address in Hobart, Indiana, and NPI 1598818270, issued on Jan 18, 2007. Check the license (Indiana 01046578, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598818270
Name
Mark A. Simaga
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License numbers
01046578 IN
01046578A IN
Self-reported in NPPES; status is on the state search
Practice location
1600 S Lake Park Ave, Hobart, IN 46342
Phone
(219) 947-6960
Enumerated
Jan 18, 2007
Record last updated
Dec 17, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(219) 947-6960
Medicare enrollment
Enrolled (PECOS I20101216000570); accepts Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 1986
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1600 S Lake Park Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Barbara Fuller, MDHematology & Oncology Physician1972545804
  2. Jennifer Green, NPFamily Nurse Practitioner1649570219

Verify Mark A. Simaga in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Licensing Board of Indiana
    Search for license 01046578
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Indiana license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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3.5 times the Medicare Part D claims of the average neurology physician in 2024

4,768 Medicare Part D claims for 447 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 451 claims were for opioids.

  1. Mark Simaga4,768
  2. Specialty average1,370

Most prescribed

  1. Gabapentin276 claims
  2. Hydrocodone-Acetaminophen243 claims
  3. Clopidogrel184 claims
  4. Levetiracetam164 claims
  5. Ropinirole Hcl162 claims
  6. Donepezil Hcl161 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: $1,722.95

77 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Simaga$1,722.95
  2. Specialty average$8,318.07

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

  1. Community Care Network IncValparaiso, IN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

4 neurology physician records list a practice address in Hobart

They are 4 of the 353 NPPES records with a practice address in Hobart, and 351 neurology physician records in Indiana.

Other neurology physician records in Indiana

  1. Rahul Abhyankar, MDCarmel, IN1659768505
  2. Sergiu Abramovici, MDIndianapolis, IN1982015186
  3. George Abu-Aita, M.D.Hobart, IN1710997929
  4. Arooj Ahmad, MDIndianapolis, IN1023509510
  5. Syed Ahmed, M.D.Hammond, IN1639278138
  6. Ender Akan, M.D.Munster, IN1487658282
  7. Mahmood Alnahass, MDValparaiso, IN1497756720
  8. Robert Alonso, MDIndianapolis, IN1548284011
  9. Liana Apostolova, MDIndianapolis, IN1770508699
  10. John Aranda, MDSouth Bend, IN1316936123

Common questions

What is Mark A. Simaga, MD's NPI number?

Mark A. Simaga, MD's National Provider Identifier (NPI) is 1598818270, issued on Jan 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mark A. Simaga, MD located?

The NPPES record lists a practice address at 1600 S Lake Park Ave, Hobart, IN, 46342. Phone: (219) 947-6960. Providers update this record themselves, so call before visiting.

How can I verify Mark A. Simaga, MD's license?

NPPES lists Indiana license number 01046578, 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 Mark A. Simaga, MD prescribe under Medicare Part D?

In 2024, Mark A. Simaga, MD had 4,768 Medicare Part D claims for 447 beneficiaries; the average among neurology physician prescribers was 1,370. 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.