2026 NPPES data Internal Medicine Physician NPI 1861832594 M.D
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IHAB AJAAJ, M.D

Internal Medicine Physician in MARION, Indiana. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
5K
Medicare Part D claims · 572 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$19.19
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: IHAB AJAAJ, M.D is a Internal Medicine Physician ([object Object]) practicing in MARION, Indiana with a Medicare Part D prescribing footprint of 5K claims across 572 beneficiaries — 17% brand-name prescribing . Industry payments of $19.19 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: IHAB AJAAJ, M.D filed 4,846 Medicare Part D claims in 2023 across MARION, Indiana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

IHAB AJAAJ, M.D practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

IHAB AJAAJ, M.D at a glance

Quality data not reported

NPI registry status

Active

Issued 06/26/2013

NPI 1861832594

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

4,846 78% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Indiana

How Internal Medicine Physician compares to other specialties among Indiana providers

Indiana providers

Internal Medicine Physician share within Indiana

1. Internal Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Internal Medicine Physician share within Indiana

Specialty board-certification context

Estimated specialty board-certified rate — Internal Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Internal Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

IHAB AJAAJ, M.D is a Internal Medicine Physician provider practicing in MARION, Indiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D. NPI: 1861832594. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

IHAB AJAAJ, M.D appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D credentials at 330 N WABASH AVE STE 110, MARION, IN, 46952, with a listed phone of (765) 664-1201. NPI 1861832594 was issued on 06/26/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AJAAJ most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 4,846 prescription claims written by this provider, covering 572 Medicare beneficiaries and totaling roughly $820K in drug spend, split 17% brand-name and 83% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

330 N WABASH AVE STE 110
MARION, IN 46952

Provider Details

NPI 1861832594
Specialty Internal Medicine Physician
Credentials M.D
Gender Male
NPI Issued 06/26/2013

Hospital and facility affiliations

Facilities where IHAB AJAAJ, M.D bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

RUSH MEMORIAL HOSPITAL
RUSHVILLE, IN
Critical Access Hospitals
CMS CCN: 151304
ST VINCENT MEDICAL GROUP INC
MARION, IN
ST VINCENT PHYSICIAN SERVICES HOSPITAL AND HEALTH CARE CENTER
INDIANAPOLIS, IN

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for IHAB AJAAJ, M.D. Source: openpaymentsdata.cms.gov.

Total received

$19

Largest payer

SCPHARMACEUTICALS INC.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Typical

IHAB AJAAJ, M.D — brand share 17.0%
Specialty average (est.)

17% brand-name claims vs 83% generic, on 4,846 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

4,846
Total Claims
$820K
Total Drug Cost
572
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
10,228
Total Day Supply
301,704
Brand vs Generic
17% brand / 83% generic
Brand Drug Cost
$730K
Generic Drug Cost
$90K

Patient Demographics

Average Patient Age
72.4 years
Avg HCC Risk Score
1.86
Gender Split
53% female / 47% male
Age Distribution
<65: 93, 65-74: 251, 75-84: 168, 85+: 60

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Atorvastatin Calcium
496
Metoprolol Succinate
475
Eliquis
Apixaban
336
Isosorbide Mononitrate Er
Isosorbide Mononitrate
333
Spironolactone
225
Rosuvastatin Calcium
211
Metoprolol Tartrate
200
Furosemide
197
Amlodipine Besylate
190
Jardiance
Empagliflozin
182

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Internal Medicine Physician Overview

How IHAB AJAAJ, M.D fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

IHAB AJAAJ, M.D's 4,846 claims are above the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Indiana

Other clinicians with the same primary specialty enrolled in Indiana, drawn from the same CMS NPPES roster as AJAAJ.

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is IHAB AJAAJ, M.D's specialty?
IHAB AJAAJ, M.D specializes in Internal Medicine Physician and practices in MARION, Indiana. Credentials: M.D.
How much does IHAB AJAAJ, M.D prescribe under Medicare Part D?
In 2023, IHAB AJAAJ, M.D wrote 4,846 Medicare Part D claims totaling $820K in drug costs for 572 beneficiaries.
Where is IHAB AJAAJ, M.D located?
IHAB AJAAJ, M.D is located at 330 N WABASH AVE STE 110, MARION, IN, 46952. Phone: (765) 664-1201.
What is IHAB AJAAJ, M.D's NPI number?
IHAB AJAAJ, M.D's National Provider Identifier (NPI) is 1861832594, issued on 06/26/2013.
Does IHAB AJAAJ, M.D prescribe more brand-name or generic drugs?
IHAB AJAAJ, M.D's prescribing is 17% brand-name and 83% generic drugs by claim count, with $730K in brand drug costs.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does IHAB AJAAJ, M.D prescribe most often?
Based on 2023 Medicare Part D data, IHAB AJAAJ, M.D's most frequently prescribed drugs include Atorvastatin Calcium, Metoprolol Succinate, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does IHAB AJAAJ, M.D accept Medicare?
IHAB AJAAJ, M.D appears in CMS Medicare data with 4,846 Part D claims and 572 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify IHAB AJAAJ, M.D's credentials?
IHAB AJAAJ, M.D's NPI is 1861832594 with credentials M.D. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology