2026 NPPES data Gastroenterology Physician NPI 1891866067 M.D.
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SINHA CHUNDURI, M.D.

Gastroenterology Physician in MELROSE PARK, 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
502
Medicare Part D claims · 312 beneficiaries · Gastroenterology Physician avg: 833
Generic prescribing
71%
generic claims · 29% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

SINHA CHUNDURI, M.D. filed 502 Medicare Part D claims in 2023 as a Gastroenterology Physician in MELROSE PARK, Illinois, prescribing 71% generic.

502
Part D claims, 2023
71%
generic prescribing

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.

SINHA CHUNDURI, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

502 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-eligible specialty (heuristic — not verified)

SINHA CHUNDURI, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about SINHA CHUNDURI, M.D.?

Quality data not reported

NPI registry status

Active

Issued 11/10/2006

NPI 1891866067

Primary specialty

Gastroenterology Physician

Mid-sized

16,567 US NPIs in this specialty

Medicare Part D claims

502 40% vs specialty avg

2023 prescription claims

Specialty avg: 833

Specialty distribution in Illinois

How Gastroenterology Physician compares to other specialties among Illinois providers

Illinois providers

Gastroenterology Physician share within Illinois

1. Gastroenterology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Gastroenterology Physician share within Illinois

Specialty board-certification context

Estimated specialty board-certified rate — Gastroenterology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Gastroenterology Physician ABMS/AOA estimate

Est. board-certified rate (Gastroenterology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Gastroenterology 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).

SINHA CHUNDURI, M.D. appears in the CMS NPPES registry as a Gastroenterology Physician provider holding M.D. credentials at 675 W NORTH AVE, MELROSE PARK, IL, 60160, with a listed phone of (708) 343-2235. NPI 1891866067 was issued on 11/10/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHUNDURI 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 502 prescription claims written by this provider, covering 312 Medicare beneficiaries and totaling roughly $34K in drug spend, split 29% brand-name and 71% 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.

Gastroenterology Physician is a mid-sized specialty nationwide, with 16,567 enrolled providers across 54 states and an average of 833 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

675 W NORTH AVE
MELROSE PARK, IL 60160

Provider Details

NPI 1891866067
Specialty Gastroenterology Physician
Credentials M.D.
Gender Male
NPI Issued 11/10/2006

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 SINHA CHUNDURI, M.D.. To verify SINHA CHUNDURI, 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 · Above average

SINHA CHUNDURI, M.D. — brand share 29.0%
Specialty average (est.)

29% brand-name claims vs 71% generic, on 502 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.

502
Total Claims
$34K
Total Drug Cost
312
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
693
Total Day Supply
12,595
Brand vs Generic
29% brand / 71% generic
Brand Drug Cost
$24K
Generic Drug Cost
$10K
Antibiotic Claims
31

Patient Demographics

Average Patient Age
71.9 years
Avg HCC Risk Score
1.15
Gender Split
57% female / 43% male
Age Distribution
<65: 36, 65-74: 166, 75-84: 94, 85+: 16

Top Prescribed Drugs (Medicare Part D)

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

What SINHA CHUNDURI, M.D. 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
Peg 3350-Electrolyte
Sodium Chloride/Nahco3/Kcl/Peg
170
Omeprazole
60
Sucralfate
27
Famotidine
22
Amoxicillin
11
Linzess
Linaclotide
11
Metoclopramide Hcl
11
Gavilyte-G
"Peg3350/Sod Sulf
N/A
Peg-3350 And Electrolytes
"Peg3350/Sod Sulf
N/A

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

Gastroenterology Physician Overview

How SINHA CHUNDURI, M.D. fits within the Gastroenterology Physician landscape nationally.

16,567
Gastroenterology Physician Providers in US
54
States with Gastroenterology Physician
833
Avg Claims per Provider

SINHA CHUNDURI, M.D.'s 502 claims are below the specialty average of 833.

Nearby Gastroenterology Physician Providers in Illinois

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

Compare Gastroenterology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is SINHA CHUNDURI, M.D.'s specialty?
SINHA CHUNDURI, M.D. specializes in Gastroenterology Physician and practices in MELROSE PARK, Illinois. Credentials: M.D..
How much does SINHA CHUNDURI, M.D. prescribe under Medicare Part D?
In 2023, SINHA CHUNDURI, M.D. wrote 502 Medicare Part D claims totaling $34K in drug costs for 312 beneficiaries.
Where is SINHA CHUNDURI, M.D. located?
SINHA CHUNDURI, M.D. is located at 675 W NORTH AVE, MELROSE PARK, IL, 60160. Phone: (708) 343-2235.
What is SINHA CHUNDURI, M.D.'s NPI number?
SINHA CHUNDURI, M.D.'s National Provider Identifier (NPI) is 1891866067, issued on 11/10/2006.
Does SINHA CHUNDURI, M.D. prescribe more brand-name or generic drugs?
SINHA CHUNDURI, M.D.'s prescribing is 29% brand-name and 71% generic drugs by claim count, with $24K in brand drug costs.
How many Gastroenterology Physician providers are there in the US?
There are 16,567 Gastroenterology Physician providers across 54 states in the US. The average Gastroenterology Physician provider writes 833 Medicare Part D claims per year.
What drugs does SINHA CHUNDURI, M.D. prescribe most often?
Based on 2023 Medicare Part D data, SINHA CHUNDURI, M.D.'s most frequently prescribed drugs include Peg 3350-Electrolyte, Omeprazole, Sucralfate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SINHA CHUNDURI, M.D. accept Medicare?
SINHA CHUNDURI, M.D. appears in CMS Medicare data with 502 Part D claims and 312 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SINHA CHUNDURI, M.D.'s credentials?
SINHA CHUNDURI, M.D.'s NPI is 1891866067 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

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