NPI registry status
Active
2026 NPPES data Hematology (Internal Medicine) Physician NPI 1427162288 MD, FACP
Verify on CMS → Osama Ayad, MD, FACP
Hematology (Internal Medicine) Physician in Merrillville, Indiana.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,483 in Hematology (Internal Medicine) Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
2K
Medicare Part D claims · 415 beneficiaries · Hematology (Internal Medicine) Physician avg: 684
What the federal data shows
Osama Ayad, MD, FACP filed 1,521 Medicare Part D claims in 2024 as a Hematology (Internal Medicine) Physician in Merrillville, Indiana.
- 2K
- Part D claims, 2024
- ≥81st
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Osama Ayad, MD, FACP
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1427162288), first enumerated 08/18/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,521 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1427162288 · Hematology (Internal Medicine) Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1427162288
- ENUM-LEGACY 2006
- TAX-NARROW 1,483
- RX-MID 1,521
- BOOK-THIN 26 in Indiana
- PHOTO-ENUM Bradley Fletcher, MD · 2006
Osama Ayad, MD, FACP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,521 ≥ 81st percentile 81% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Osama Ayad, MD, FACP practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Osama Ayad, MD, FACP?
Quality data not reportedPrimary specialty
Hematology (Internal Medicine) Physician
Medicare Part D claims
1,521 122% vs specialty avg
Specialty distribution in Indiana
How Hematology (Internal Medicine) Physician compares to other specialties among Indiana providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Hematology (Internal Medicine) Physician. Verify directly:
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1427162288 |
|---|---|
| Specialty | Hematology (Internal Medicine) Physician |
| Credentials | MD, FACP |
| Gender | Male |
| NPI Issued | 08/18/2006 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
1,521
Total Claims
$286K
Total Drug Cost
415
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,618
- Total Day Supply
- 67,915
- Generic Drug Cost
- $17K
- Opioid Claims
- 51 (3.4% rate)
- Antibiotic Claims
- 249
Patient Demographics
- Average Patient Age
- 75.0 years
- Avg HCC Risk Score
- 2.20
- Gender Split
- 63% female / 37% male
- Age Distribution
- <65: 46, 65-74: 147, 75-84: 142, 85+: 80
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Osama Ayad, MD, FACP prescribes most
Top Medicare Part D drugs by claim count, 2024
- Amlodipine Besylate
Amlodipine Besylate
72 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
63 claims
- Furosemide
Furosemide
62 claims
- Atorvastatin Calcium
Atorvastatin Calcium
61 claims
- Pantoprazole Sodium
Pantoprazole Sodium
46 claims
- Lisinopril
Lisinopril
44 claims
- Cefuroxime
Cefuroxime
39 claims
- Metoprolol Succinate
Metoprolol Succinate
36 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 72 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 63 |
| Furosemide | 62 |
| Atorvastatin Calcium | 61 |
| Pantoprazole Sodium | 46 |
| Lisinopril | 44 |
| Cefuroxime Cefuroxime Axetil | 39 |
| Metoprolol Succinate | 36 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 35 |
| Levothyroxine Sodium | 33 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Hematology (Internal Medicine) Physician in IN →
All providers in Indiana →
Compare specialties →
Hematology (Internal Medicine) Physician Overview
How Osama Ayad, MD, FACP fits within the Hematology (Internal Medicine) Physician landscape nationally.
1,483
Hematology (Internal Medicine) Physician Providers in US
50
States with Hematology (Internal Medicine) Physician
684
Avg Claims per Provider
Osama Ayad, MD, FACP's 1,521 claims are above the specialty average of 684.
Nationwide Hematology (Internal Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Ayad, both outside Indiana so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Hematology (Internal Medicine) Physician Providers in Indiana
Other clinicians with the same primary specialty enrolled in Indiana, drawn from the same CMS NPPES roster as Ayad.
One of 26 Hematology (Internal Medicine) Physician providers enrolled in Indiana, 5 are shown here.
Anuj Agarwala
Indianapolis, IN
Dr. Luke Akard
M.D.
Indianapolis, IN
Dr. Abeer Alqaisi
MD
Kokomo, IN
Dr. Sami Atassi
MD
Michigan City, IN
Dr. Pablo Bedano
MD
Indianapolis, IN
Compare Hematology (Internal Medicine) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Osama Ayad, MD, FACP's specialty? ▼
Osama Ayad, MD, FACP specializes in Hematology (Internal Medicine) Physician and practices in Merrillville, Indiana. Credentials: MD, FACP.
How much does Osama Ayad, MD, FACP prescribe under Medicare Part D? ▼
In 2024, Osama Ayad, MD, FACP wrote 1,521 Medicare Part D claims totaling $286K in drug costs for 415 beneficiaries.
Where is Osama Ayad, MD, FACP located? ▼
Osama Ayad, MD, FACP is located at 370 E 84TH DR STE 200, Merrillville, IN, 46410. Phone: (121) 983-6109.
What is Osama Ayad, MD, FACP's NPI number? ▼
Osama Ayad, MD, FACP's National Provider Identifier (NPI) is 1427162288, issued on 08/18/2006.
Does Osama Ayad, MD, FACP prescribe opioids? ▼
Yes, Osama Ayad, MD, FACP had 51 opioid claims in 2024 with an opioid prescribing rate of 3.4%.
How many Hematology (Internal Medicine) Physician providers are there in the US? ▼
There are 1,483 Hematology (Internal Medicine) Physician providers across 50 states in the US. The average Hematology (Internal Medicine) Physician provider writes 684 Medicare Part D claims per year.
What drugs does Osama Ayad, MD, FACP prescribe most often? ▼
Based on 2024 Medicare Part D data, Osama Ayad, MD, FACP's most frequently prescribed drugs include Amlodipine Besylate, Amoxicillin-Clavulanate Potass, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Osama Ayad, MD, FACP accept Medicare? ▼
Osama Ayad, MD, FACP appears in CMS Medicare data with 1,521 Part D claims and 415 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Osama Ayad, MD, FACP's credentials? ▼
Osama Ayad, MD, FACP's NPI is 1427162288 with credentials MD, FACP. 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
View source datasets and methodology notes
- 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 (2024). 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.