NPI registry status
Active
2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1720063530 MD
Verify on CMS → Sundar Sivaprakasam, MD
Critical Care Medicine (Internal Medicine) 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 6,916 in Critical Care Medicine (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
4K
Medicare Part D claims · 175 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
83%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
85.4/100
▲ 2 pts above national avg 83.5 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Sundar Sivaprakasam, MD reported a CMS MIPS final score of 85.4/100 - above the 83.5 national average - and filed 4,184 Medicare Part D claims in 2024.
- 85.4/100
- MIPS score · +2 vs avg
- 4K
- Part D claims, 2024
- 83%
- 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.
Federal trust snapshot
What official records show about Sundar Sivaprakasam, MD
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1720063530), first enumerated 12/14/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 4,184 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 85.4/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- State context
State board disciplinary context
Illinois statewide board action statistics are published annually — these figures describe aggregate state activity, not Sundar Sivaprakasam, MD's individual license status. Verify directly with the state medical board.
Source: IDFPR annual report 2023
- 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 1720063530 · Critical Care Medicine (Internal Medicine) Physician
NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-INLINE · RX-MID · BOOK-THIN · PHOTO-FINISH
- NPI-10 1720063530
- ENUM-LEGACY 2005
- TAX-MID 7K Critical Care
- MIPS-INLINE 85.4/100
- RX-MID 4,184
- BOOK-THIN 303 in Illinois
- PHOTO-FINISH Hammad Bhatti · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Sivaprakasam · t…
Sivaprakasam · this provider
85.4 MIPS pts
- Kerry Spero · hi…
Kerry Spero
85.4 MIPS pts
- Hammad Bhatti · …
Hammad Bhatti
85.4 MIPS pts
- Usman Mazahir · …
Usman Mazahir
85.4 MIPS pts
- Ashlee Moore · n…
Ashlee Moore
85.4 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Sundar Sivaprakasam, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
85 ≥ 46th percentile 46% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Sundar Sivaprakasam, MD sits
This provider among critical care medicine (internal medicine) physician peers
Across the 1,548 critical care medicine (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Sundar Sivaprakasam, MD writes more Part D claims than 96% of them and scores higher on MIPS quality than 45% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one critical care medicine (internal medicine) physician peer from a representative sample of 60; the gold marker is Sundar Sivaprakasam, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Sundar Sivaprakasam, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Sundar Sivaprakasam, MD?
High performer (top quartile)Primary specialty
Critical Care Medicine (Internal Medicine) Physician
Medicare Part D claims
4,184 279% vs specialty avg
MIPS final score
85.4/100 1.9 pts vs avg
Specialty distribution in Illinois
How Critical Care Medicine (Internal Medicine) Physician compares to other specialties among Illinois providers
Medicare quality performance, MIPS
Sundar Sivaprakasam, MD's 2023 MIPS final score plotted against the Critical Care Medicine (Internal Medicine) Physician national average
- MIPS Final Score
- 85.4/100
- vs 83.5 national avg · 2023 performance year
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 | 1720063530 |
|---|---|
| Specialty | Critical Care Medicine (Internal Medicine) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 12/14/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
85.3609
Final Score
Measured-score avg: 83.5
99.285
Quality
18.823
Cost
Reporting: Individual
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 Sundar Sivaprakasam, MD. To verify Sundar Sivaprakasam, MD'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 · Typical
Sundar Sivaprakasam, MD - brand share 14.0%
Critical Care Medicine (Internal Medicine) Physician average
14% brand-name claims vs 83% generic, on 4,184 2024 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 2024.
4,184
Total Claims
$330K
Total Drug Cost
175
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 5,350.9
- Total Day Supply
- 152,511
- Brand vs Generic
- 14% brand / 83% generic
- Brand Drug Cost
- $234K
- Generic Drug Cost
- $89K
- Opioid Claims
- 190 (4.5% rate)
- Antibiotic Claims
- 79
Patient Demographics
- Average Patient Age
- 73.6 years
- Avg HCC Risk Score
- 2.55
- Gender Split
- 72% female / 28% male
- Age Distribution
- <65: 33, 65-74: 63, 75-84: 45, 85+: 34
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Sundar Sivaprakasam, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Amlodipine Besylate
Amlodipine Besylate
211 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
152 claims
- Atorvastatin Calcium
Atorvastatin Calcium
148 claims
- Gabapentin
Gabapentin
133 claims
- Metoprolol Succinate
Metoprolol Succinate
121 claims
- Hydrochlorothiazide
Hydrochlorothiazide
106 claims
- Metformin Hcl
Metformin Hcl
104 claims
- Tramadol Hcl
Tramadol Hcl
86 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 211 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 152 |
| Atorvastatin Calcium | 148 |
| Gabapentin | 133 |
| Metoprolol Succinate | 121 |
| Hydrochlorothiazide | 106 |
| Metformin Hcl | 104 |
| Tramadol Hcl | 86 |
| Omeprazole | 83 |
| Pantoprazole Sodium | 76 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Critical Care Medicine (Internal Medicine) Physician in IL →
All providers in Illinois →
Compare specialties →
Critical Care Medicine (Internal Medicine) Physician Overview
How Sundar Sivaprakasam, MD fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.
6,916
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,103
Avg Claims per Provider
Sundar Sivaprakasam, MD's 4,184 claims are above the specialty average of 1,103.
Nationwide Critical Care Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Sivaprakasam, both outside Illinois so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (85.4 here).
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Critical Care Medicine (Internal Medicine) Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Sivaprakasam.
One of 303 Critical Care Medicine (Internal Medicine) Physician providers enrolled in Illinois, 5 are shown here.
Frequently Asked Questions
What is Sundar Sivaprakasam, MD's specialty? ▼
Sundar Sivaprakasam, MD specializes in Critical Care Medicine (Internal Medicine) Physician and practices in Chicago, Illinois. Credentials: MD.
How much does Sundar Sivaprakasam, MD prescribe under Medicare Part D? ▼
In 2024, Sundar Sivaprakasam, MD wrote 4,184 Medicare Part D claims totaling $330K in drug costs for 175 beneficiaries.
What is Sundar Sivaprakasam, MD's Medicare quality score? ▼
Sundar Sivaprakasam, MD has a CMS MIPS Final Score of 85.4/100 (Quality: 99.3, Cost: 18.8). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Sundar Sivaprakasam, MD located? ▼
Sundar Sivaprakasam, MD is located at 2701 W 68TH ST, Chicago, IL, 60629. Phone: (773) 884-7920.
What is Sundar Sivaprakasam, MD's NPI number? ▼
Sundar Sivaprakasam, MD's National Provider Identifier (NPI) is 1720063530, issued on 12/14/2005.
Does Sundar Sivaprakasam, MD prescribe more brand-name or generic drugs? ▼
Sundar Sivaprakasam, MD's prescribing is 14% brand-name and 83% generic drugs by claim count, with $234K in brand drug costs.
Does Sundar Sivaprakasam, MD prescribe opioids? ▼
Yes, Sundar Sivaprakasam, MD had 190 opioid claims in 2024 with an opioid prescribing rate of 4.5%.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 6,916 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,103 Medicare Part D claims per year.
What drugs does Sundar Sivaprakasam, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Sundar Sivaprakasam, MD's most frequently prescribed drugs include Amlodipine Besylate, Albuterol Sulfate Hfa, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sundar Sivaprakasam, MD accept Medicare? ▼
Sundar Sivaprakasam, MD appears in CMS Medicare data with 4,184 Part D claims and 175 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sundar Sivaprakasam, MD's credentials? ▼
Sundar Sivaprakasam, MD's NPI is 1720063530 with credentials MD. 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.
- 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 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.