2026 NPPES data Internal Medicine Physician NPI 1124559117 DO
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Maulik Patel, DO

Internal Medicine Physician in Naperville, 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
242
Medicare Part D claims · 142 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
91.4/100
▲ 8 pts above national avg 83.1 · Exceptional

What the federal data shows

Maulik Patel, DO reported a CMS MIPS final score of 91.4/100 — above the 83.1 national average — and filed 242 Medicare Part D claims in 2023.

91.4/100
MIPS score · +8 vs avg
242
Part D claims, 2023
88%
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.

Maulik Patel, DO's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

91 Top 37% higher than 63% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

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 Maulik Patel, DO sits

This provider among internal medicine physician peers

Across the 36,260 internal medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Maulik Patel, DO writes more Part D claims than 27% of them and scores higher on MIPS quality than 64% — placing this provider in the lower-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

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume — percentile in specialtyMIPS quality — percentile
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one internal medicine physician peer from a representative sample of 60; the gold marker is Maulik Patel, DO. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic — not verified)

Maulik Patel, DO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Maulik Patel, DO?

High performer (top quartile)

NPI registry status

Active

Issued 03/22/2017

NPI 1124559117

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

242 91% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

91.4/100 8.3 pts vs avg

Exceptional band

vs 83.1 national avg

Specialty distribution in Illinois

How Internal Medicine Physician compares to other specialties among Illinois providers

Illinois providers

Largest specialties in Illinois (% of in-state providers)

Clinical Social Worker5.2%Physical Therapist5%Mental Health Counselor4.5%Speech-Language Pathologist4.2%Student in an Organized Health Care Education/Training Program4.2%Pharmacist4.1%Internal Medicine Physician3.6%
Largest specialties in Illinois (% of in-state providers)

Medicare quality performance — MIPS

Maulik Patel, DO's 2023 MIPS final score plotted against the Internal Medicine Physician national average

High performer (top quartile)
MIPS Final Score
91.4/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Internal Medicine Physician) — 91.4/100 vs national avg 83.1

0%100%National avg83%91.4%
MIPS final score (Internal Medicine Physician) — 91.4/100 vs national avg 83.1

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).

Maulik Patel, DO appears in the CMS NPPES registry as a Internal Medicine Physician provider holding DO credentials at 801 S WASHINGTON ST, Naperville, IL, 60540, with a listed phone of (630) 527-3000. NPI 1124559117 was issued on 03/22/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Patel 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 242 prescription claims written by this provider, covering 142 Medicare beneficiaries and totaling roughly $16K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 12.4%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 91.4/100 for the 2023 performance year (Quality 82.7), compared with the national average of 83.1.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

801 S WASHINGTON ST
Naperville, IL 60540

Provider Details

NPI 1124559117
Specialty Internal Medicine Physician
Credentials DO
Gender Male
NPI Issued 03/22/2017

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

91.3557
Final Score
Avg: 83.1
82.7114
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where Maulik Patel, DO 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).

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 Maulik Patel, DO. To verify Maulik Patel, DO'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

Maulik Patel, DO — brand share 12.0%
Internal Medicine Physician average

12% brand-name claims vs 88% generic, on 242 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.

242
Total Claims
$16K
Total Drug Cost
142
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
322
Total Day Supply
6,913
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$14K
Generic Drug Cost
$3K
Opioid Claims
30 (12.4% rate)
Antibiotic Claims
49

Patient Demographics

Average Patient Age
76.2 years
Avg HCC Risk Score
2.51
Gender Split
59% female / 41% male

Top Prescribed Drugs (Medicare Part D)

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

What Maulik Patel, DO 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
Pantoprazole Sodium
20
Atorvastatin Calcium
19
Cefdinir
13
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
13
Eliquis
Apixaban
11

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

Internal Medicine Physician Overview

How Maulik Patel, DO fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

Maulik Patel, DO's 242 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Illinois

Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Patel.

Compare Internal Medicine 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 Internal Medicine 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.

Frequently Asked Questions

What is Maulik Patel, DO's specialty?
Maulik Patel, DO specializes in Internal Medicine Physician and practices in Naperville, Illinois. Credentials: DO.
How much does Maulik Patel, DO prescribe under Medicare Part D?
In 2023, Maulik Patel, DO wrote 242 Medicare Part D claims totaling $16K in drug costs for 142 beneficiaries.
What is Maulik Patel, DO's Medicare quality score?
Maulik Patel, DO has a CMS MIPS Final Score of 91.4/100 (Quality: 82.7). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Maulik Patel, DO located?
Maulik Patel, DO is located at 801 S WASHINGTON ST, Naperville, IL, 60540. Phone: (630) 527-3000.
What is Maulik Patel, DO's NPI number?
Maulik Patel, DO's National Provider Identifier (NPI) is 1124559117, issued on 03/22/2017.
Does Maulik Patel, DO prescribe more brand-name or generic drugs?
Maulik Patel, DO's prescribing is 12% brand-name and 88% generic drugs by claim count, with $14K in brand drug costs.
Does Maulik Patel, DO prescribe opioids?
Yes, Maulik Patel, DO had 30 opioid claims in 2023 with an opioid prescribing rate of 12.4%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Maulik Patel, DO prescribe most often?
Based on 2023 Medicare Part D data, Maulik Patel, DO's most frequently prescribed drugs include Pantoprazole Sodium, Atorvastatin Calcium, Cefdinir. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Maulik Patel, DO accept Medicare?
Maulik Patel, DO appears in CMS Medicare data with 242 Part D claims and 142 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Maulik Patel, DO's credentials?
Maulik Patel, DO's NPI is 1124559117 with credentials DO. 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.
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