2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1871514638 MD
Verify on CMS →

NEERAJ DESAI, MD

Critical Care Medicine (Internal Medicine) Physician in SCHAUMBURG, Illinois. 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
589
Medicare Part D claims · 151 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
28%
generic claims · 72% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$5.1K
80 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

NEERAJ DESAI, MD filed 589 Medicare Part D claims in 2023 as a Critical Care Medicine (Internal Medicine) Physician in SCHAUMBURG, Illinois, prescribing 28% generic.

589
Part D claims, 2023
28%
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.

NEERAJ DESAI, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

589 Top 34% higher than 66% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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)

NEERAJ DESAI, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — 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 NEERAJ DESAI, MD?

Quality data not reported

NPI registry status

Active

Issued 07/21/2006

NPI 1871514638

Primary specialty

Critical Care Medicine (Internal Medicine) Physician

Mid-sized

6,631 US NPIs in this specialty

Medicare Part D claims

589 45% vs specialty avg

2023 prescription claims

Specialty avg: 1,069

Specialty distribution in Illinois

How Critical Care Medicine (Internal Medicine) Physician compares to other specialties among Illinois providers

Illinois providers

Critical Care Medicine (Internal Medicine) Physician share within Illinois

1. Critical Care Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Critical Care Medicine (Internal Medicine) Physician share within Illinois

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Critical Care Medicine (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).

NEERAJ DESAI, MD appears in the CMS NPPES registry as a Critical Care Medicine (Internal Medicine) Physician provider holding MD credentials at 519 S ROSELLE RD FL 2, SCHAUMBURG, IL, 60193, with a listed phone of (847) 618-4380. NPI 1871514638 was issued on 07/21/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DESAI 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 589 prescription claims written by this provider, covering 151 Medicare beneficiaries and totaling roughly $271K in drug spend, split 72% brand-name and 28% 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.

Critical Care Medicine (Internal Medicine) Physician is a mid-sized specialty nationwide, with 6,631 enrolled providers across 53 states and an average of 1,069 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

519 S ROSELLE RD FL 2
SCHAUMBURG, IL 60193

Provider Details

NPI 1871514638
Specialty Critical Care Medicine (Internal Medicine) Physician
Credentials MD
Gender Male
NPI Issued 07/21/2006

Hospital and facility affiliations

Facilities where NEERAJ DESAI, MD 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.

ENDEAVOR HEALTH MEDICAL GROUP
EVANSTON, 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 NEERAJ DESAI, MD. Source: openpaymentsdata.cms.gov.

Total received

$5.1K

Largest payer

INTUITIVE SURGICAL, 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 NEERAJ DESAI, MD. To verify NEERAJ DESAI, 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 · Brand-heavy

NEERAJ DESAI, MD — brand share 72.0%
Specialty average (est.)

72% brand-name claims vs 28% generic, on 589 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.

589
Total Claims
$271K
Total Drug Cost
151
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
778
Total Day Supply
20,921
Brand vs Generic
72% brand / 28% generic
Brand Drug Cost
$267K
Generic Drug Cost
$3K
Antibiotic Claims
54

Patient Demographics

Average Patient Age
74.1 years
Avg HCC Risk Score
1.97
Gender Split
54% female / 46% male

Top Prescribed Drugs (Medicare Part D)

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

What NEERAJ DESAI, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
93
Prednisone
63
Anoro Ellipta
Umeclidinium Brm/Vilanterol Tr
56
Stiolto Respimat
Tiotropium Br/Olodaterol Hcl
53
Breo Ellipta
Fluticasone/Vilanterol
51
Albuterol Sulfate Hfa
Albuterol Sulfate
48
Doxycycline Hyclate
31
Ventolin Hfa
Albuterol Sulfate
24
Incruse Ellipta
Umeclidinium Bromide
23
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
15

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

Critical Care Medicine (Internal Medicine) Physician Overview

How NEERAJ DESAI, MD fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.

6,631
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,069
Avg Claims per Provider

NEERAJ DESAI, MD's 589 claims are below the specialty average of 1,069.

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 DESAI.

Compare Critical Care Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is NEERAJ DESAI, MD's specialty?
NEERAJ DESAI, MD specializes in Critical Care Medicine (Internal Medicine) Physician and practices in SCHAUMBURG, Illinois. Credentials: MD.
How much does NEERAJ DESAI, MD prescribe under Medicare Part D?
In 2023, NEERAJ DESAI, MD wrote 589 Medicare Part D claims totaling $271K in drug costs for 151 beneficiaries.
Where is NEERAJ DESAI, MD located?
NEERAJ DESAI, MD is located at 519 S ROSELLE RD FL 2, SCHAUMBURG, IL, 60193. Phone: (847) 618-4380.
What is NEERAJ DESAI, MD's NPI number?
NEERAJ DESAI, MD's National Provider Identifier (NPI) is 1871514638, issued on 07/21/2006.
Does NEERAJ DESAI, MD prescribe more brand-name or generic drugs?
NEERAJ DESAI, MD's prescribing is 72% brand-name and 28% generic drugs by claim count, with $267K in brand drug costs.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US?
There are 6,631 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,069 Medicare Part D claims per year.
What drugs does NEERAJ DESAI, MD prescribe most often?
Based on 2023 Medicare Part D data, NEERAJ DESAI, MD's most frequently prescribed drugs include Trelegy Ellipta, Prednisone, Anoro Ellipta. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NEERAJ DESAI, MD accept Medicare?
NEERAJ DESAI, MD appears in CMS Medicare data with 589 Part D claims and 151 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NEERAJ DESAI, MD's credentials?
NEERAJ DESAI, MD's NPI is 1871514638 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

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