NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1811967730 M.D.
Verify on CMS → Vijaykumar Rao, M.D.
Nephrology Physician in South Holland, 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 10,569 in Nephrology 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
1K
Medicare Part D claims · 196 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
77%
generic claims · 23% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$748.99
12 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
Vijaykumar Rao, M.D. filed 1,177 Medicare Part D claims in 2023 as a Nephrology Physician in South Holland, Illinois, prescribing 77% generic.
- 1K
- Part D claims, 2023
- 77%
- 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.
Vijaykumar Rao, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,177 Top 23% higher than 77% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Vijaykumar Rao, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Vijaykumar Rao, M.D.?
Quality data not reportedPrimary specialty
Nephrology Physician
Medicare Part D claims
1,177 19% vs specialty avg
Specialty distribution in Illinois
How Nephrology Physician compares to other specialties among Illinois 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 Nephrology 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).
Vijaykumar Rao, M.D. appears in the CMS NPPES registry as a Nephrology Physician provider holding M.D. credentials at 17225 PAXTON AVE, South Holland, IL, 60473, with a listed phone of (708) 474-8700. NPI 1811967730 was issued on 01/24/2006.
Medicare Part D records for calendar year 2023 show 1,177 prescription claims written by this provider, covering 196 Medicare beneficiaries and totaling roughly $587K in drug spend, split 23% brand-name and 77% generic by claim count.
Nephrology Physician is a mid-sized specialty nationwide, with 10,569 enrolled providers across 55 states and an average of 1,454 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 | 1811967730 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 01/24/2006 |
Hospital and facility affiliations
Facilities where Vijaykumar Rao, 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.
Associates IN Nephrology SC
South Holland, IL
Specialty Physicians OF Illinois LLC
Olympia Fields, IL
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 Vijaykumar Rao, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$749
Largest payer
Travere Therapeutics, 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.
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 Vijaykumar Rao, M.D.. To verify Vijaykumar Rao, 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 · Typical
Vijaykumar Rao, M.D. - brand share 23.0%
Nephrology Physician average
23% brand-name claims vs 77% generic, on 1,177 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.
1,177
Total Claims
$587K
Total Drug Cost
196
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,800
- Total Day Supply
- 53,228
- Brand vs Generic
- 23% brand / 77% generic
- Brand Drug Cost
- $486K
- Generic Drug Cost
- $101K
Patient Demographics
- Average Patient Age
- 70.2 years
- Avg HCC Risk Score
- 6.34
- Gender Split
- 54% female / 46% male
- Age Distribution
- <65: 53, 65-74: 64, 75-84: 62, 85+: 17
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Vijaykumar Rao, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Sevelamer Carbonate
Sevelamer Carbonate
214 claims
- Allopurinol
Allopurinol
184 claims
- Furosemide
Furosemide
167 claims
- Velphoro
Velphoro
89 claims
- Auryxia 61
Auryxia
61 claims
- Nifedipine Er 36
Nifedipine Er
36 claims
- Metoprolol Succinate 33
Metoprolol Succinate
33 claims
- Metolazone 26
Metolazone
26 claims
| Drug | Claims |
|---|---|
| Sevelamer Carbonate | 214 |
| Allopurinol | 184 |
| Furosemide | 167 |
| Velphoro Sucroferric Oxyhydroxide | 89 |
| Auryxia Ferric Citrate | 61 |
| Nifedipine Er Nifedipine | 36 |
| Metoprolol Succinate | 33 |
| Metolazone | 26 |
| Midodrine Hcl | 26 |
| Enalapril Maleate | 23 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How Vijaykumar Rao, M.D. fits within the Nephrology Physician landscape nationally.
10,569
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider
Vijaykumar Rao, M.D.'s 1,177 claims are below the specialty average of 1,454.
Nearby Nephrology Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Rao.
Dr. Momen Abbasi
M.D.
Chicago, IL
Dr. Pabitra Adhikari
MD
Chicago, IL
Dr. Bhavani Adusumilli
MD
Springfield, IL
Dr. Muhammad Sohaib Afzal
MD, MBBS
Maywood, IL
Dr. Nidhi Aggarwal
M.D.
Chicago, IL
Compare Nephrology 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 Nephrology 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 Vijaykumar Rao, M.D.'s specialty? ▼
Vijaykumar Rao, M.D. specializes in Nephrology Physician and practices in South Holland, Illinois. Credentials: M.D..
How much does Vijaykumar Rao, M.D. prescribe under Medicare Part D? ▼
In 2023, Vijaykumar Rao, M.D. wrote 1,177 Medicare Part D claims totaling $587K in drug costs for 196 beneficiaries.
Where is Vijaykumar Rao, M.D. located? ▼
Vijaykumar Rao, M.D. is located at 17225 PAXTON AVE, South Holland, IL, 60473. Phone: (708) 474-8700.
What is Vijaykumar Rao, M.D.'s NPI number? ▼
Vijaykumar Rao, M.D.'s National Provider Identifier (NPI) is 1811967730, issued on 01/24/2006.
Does Vijaykumar Rao, M.D. prescribe more brand-name or generic drugs? ▼
Vijaykumar Rao, M.D.'s prescribing is 23% brand-name and 77% generic drugs by claim count, with $486K in brand drug costs.
How many Nephrology Physician providers are there in the US? ▼
There are 10,569 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does Vijaykumar Rao, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Vijaykumar Rao, M.D.'s most frequently prescribed drugs include Sevelamer Carbonate, Allopurinol, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Vijaykumar Rao, M.D. accept Medicare? ▼
Vijaykumar Rao, M.D. appears in CMS Medicare data with 1,177 Part D claims and 196 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Vijaykumar Rao, M.D.'s credentials? ▼
Vijaykumar Rao, M.D.'s NPI is 1811967730 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.
- 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.
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 May 2026.