NPI registry status
Active
2026 NPPES data Anesthesiology Physician NPI 1336528637 M.D.
Verify on CMS → Hassan Aboumerhi, M.D.
Anesthesiology Physician in Chicago, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 56,398 in Anesthesiology 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
497
Medicare Part D claims · 131 beneficiaries · Anesthesiology Physician avg: 860
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
97.7/100
▲ 15 pts above national avg 83.1 · Exceptional
Industry payments
$12.6K
126 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Hassan Aboumerhi, M.D. reported a CMS MIPS final score of 97.7/100 - above the 83.1 national average - and filed 497 Medicare Part D claims in 2023.
- 97.7/100
- MIPS score · +15 vs avg
- 497
- Part D claims, 2023
- 93%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Hassan Aboumerhi, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
98 Top 15% higher than 85% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Hassan Aboumerhi, M.D. sits
This provider among anesthesiology physician peers
Across the 1,666 anesthesiology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Hassan Aboumerhi, M.D. writes more Part D claims than 50% of them and scores higher on MIPS quality than 91% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one anesthesiology physician peer from a representative sample of 60; the gold marker is Hassan Aboumerhi, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Hassan Aboumerhi, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Hassan Aboumerhi, M.D.?
High performer (top quartile)Primary specialty
Anesthesiology Physician
Medicare Part D claims
497 42% vs specialty avg
MIPS final score
97.7/100 14.6 pts vs avg
Specialty distribution in Illinois
How Anesthesiology Physician compares to other specialties among Illinois providers
Medicare quality performance, MIPS
Hassan Aboumerhi, M.D.'s 2023 MIPS final score plotted against the Anesthesiology Physician national average
- MIPS Final Score
- 97.7/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Anesthesiology Physician) - 97.7/100 vs national avg 83.1
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).
Hassan Aboumerhi, M.D. appears in the CMS NPPES registry as a Anesthesiology Physician provider holding M.D. credentials at 5841 S MARYLAND AVE, Chicago, IL, 60637, with a listed phone of (888) 824-0200. NPI 1336528637 was issued on 05/20/2015.
Medicare Part D records for calendar year 2023 show 497 prescription claims written by this provider, covering 131 Medicare beneficiaries and totaling roughly $38K in drug spend, split 7% brand-name and 93% generic by claim count, with an opioid prescribing rate of 46.7%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97.7/100 for the 2023 performance year (Quality 75.4), compared with the national average of 83.1.
Anesthesiology Physician is a high-volume specialty nationwide, with 56,398 enrolled providers across 56 states and an average of 860 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
Provider Details
| NPI | 1336528637 |
|---|---|
| Specialty | Anesthesiology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 05/20/2015 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
97.7188
Final Score
Avg: 83.1
75.4375
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Hassan Aboumerhi, 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.
University OF Chicago
Chicago, IL
University Primary Care Practices Inc
Conneaut, OH
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 Hassan Aboumerhi, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$12.6K
Largest payer
Abbott Laboratories
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.
License & disciplinary context - Illinois IDFPR 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 - they are NOT specific to Hassan Aboumerhi, M.D.. To verify Hassan Aboumerhi, M.D.'s current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases
IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Generic-heavy
Hassan Aboumerhi, M.D. - brand share 7.0%
Anesthesiology Physician average
7% brand-name claims vs 93% generic, on 497 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.
497
Total Claims
$38K
Total Drug Cost
131
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 671
- Total Day Supply
- 18,179
- Brand vs Generic
- 7% brand / 93% generic
- Brand Drug Cost
- $27K
- Generic Drug Cost
- $11K
- Opioid Claims
- 232 (46.7% rate)
Patient Demographics
- Average Patient Age
- 70.4 years
- Avg HCC Risk Score
- 1.51
- Gender Split
- 71% female / 29% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Hassan Aboumerhi, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
126 claims
- Gabapentin
Gabapentin
71 claims
- Pregabalin 40
Pregabalin
40 claims
- Tramadol Hcl 34
Tramadol Hcl
34 claims
- Duloxetine Hcl 30
Duloxetine Hcl
30 claims
- Tizanidine Hcl 26
Tizanidine Hcl
26 claims
- Belbuca 23
Belbuca
23 claims
- Oxycodone-Acetamin… 22
Oxycodone-Acetaminophen
22 claims
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 126 |
| Gabapentin | 71 |
| Pregabalin | 40 |
| Tramadol Hcl | 34 |
| Duloxetine Hcl | 30 |
| Tizanidine Hcl | 26 |
| Belbuca Buprenorphine Hcl | 23 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 22 |
| Methylprednisolone | 19 |
| Oxycodone Hcl | 16 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Anesthesiology Physician Overview
How Hassan Aboumerhi, M.D. fits within the Anesthesiology Physician landscape nationally.
56,398
Anesthesiology Physician Providers in US
56
States with Anesthesiology Physician
860
Avg Claims per Provider
Hassan Aboumerhi, M.D.'s 497 claims are below the specialty average of 860.
Nearby Anesthesiology Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Aboumerhi.
Dr. Sadiqa Abbas
M.D.
Downers Grove, IL
Dr. Ossama Abdellatif
MD
Berwyn, IL
Dr. Nadine Abi-Younes
MD
Chicago, IL
Dr. Jake Abramowicz
DO
Chicago, IL
Dr. Antonio Abrego
MD
Chicago, IL
Compare Anesthesiology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Illinois medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Anesthesiology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Hassan Aboumerhi, M.D.'s specialty? ▼
Hassan Aboumerhi, M.D. specializes in Anesthesiology Physician and practices in Chicago, Illinois. Credentials: M.D..
How much does Hassan Aboumerhi, M.D. prescribe under Medicare Part D? ▼
In 2023, Hassan Aboumerhi, M.D. wrote 497 Medicare Part D claims totaling $38K in drug costs for 131 beneficiaries.
What is Hassan Aboumerhi, M.D.'s Medicare quality score? ▼
Hassan Aboumerhi, M.D. has a CMS MIPS Final Score of 97.7/100 (Quality: 75.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Hassan Aboumerhi, M.D. located? ▼
Hassan Aboumerhi, M.D. is located at 5841 S MARYLAND AVE, Chicago, IL, 60637. Phone: (888) 824-0200.
What is Hassan Aboumerhi, M.D.'s NPI number? ▼
Hassan Aboumerhi, M.D.'s National Provider Identifier (NPI) is 1336528637, issued on 05/20/2015.
Does Hassan Aboumerhi, M.D. prescribe more brand-name or generic drugs? ▼
Hassan Aboumerhi, M.D.'s prescribing is 7% brand-name and 93% generic drugs by claim count, with $27K in brand drug costs.
Does Hassan Aboumerhi, M.D. prescribe opioids? ▼
Yes, Hassan Aboumerhi, M.D. had 232 opioid claims in 2023 with an opioid prescribing rate of 46.7%.
How many Anesthesiology Physician providers are there in the US? ▼
There are 56,398 Anesthesiology Physician providers across 56 states in the US. The average Anesthesiology Physician provider writes 860 Medicare Part D claims per year.
What drugs does Hassan Aboumerhi, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Hassan Aboumerhi, M.D.'s most frequently prescribed drugs include Hydrocodone-Acetaminophen, Gabapentin, Pregabalin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Hassan Aboumerhi, M.D. accept Medicare? ▼
Hassan Aboumerhi, M.D. appears in CMS Medicare data with 497 Part D claims and 131 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Hassan Aboumerhi, M.D.'s credentials? ▼
Hassan Aboumerhi, M.D.'s NPI is 1336528637 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
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 (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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
Compiled from official public sources by the PlainDoctor editorial team.