2026 NPPES data Ophthalmology Physician NPI 1801865332 MD
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SURENDAR DWARAKANATHAN, MD

Ophthalmology Physician in SCHERERVILLE, Indiana. 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
2K
Medicare Part D claims · 374 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
52%
generic claims · 48% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.1K
19 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: SURENDAR DWARAKANATHAN, MD is a Ophthalmology Physician ([object Object]) practicing in SCHERERVILLE, Indiana with a Medicare Part D prescribing footprint of 2K claims across 374 beneficiaries — 48% brand-name prescribing . Industry payments of $1.1K across 19 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: SURENDAR DWARAKANATHAN, MD filed 1,795 Medicare Part D claims in 2023 across SCHERERVILLE, Indiana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

SURENDAR DWARAKANATHAN, MD 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).

SURENDAR DWARAKANATHAN, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 03/16/2006

NPI 1801865332

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

1,795 26% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

Specialty distribution in Indiana

How Ophthalmology Physician compares to other specialties among Indiana providers

Indiana providers

Ophthalmology Physician share within Indiana

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

Specialty board-certification context

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

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

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

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

SURENDAR DWARAKANATHAN, MD is a Ophthalmology Physician provider practicing in SCHERERVILLE, Indiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1801865332. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

SURENDAR DWARAKANATHAN, MD appears in the CMS NPPES registry as a Ophthalmology Physician provider holding MD credentials at 320 W US HIGHWAY 30, SCHERERVILLE, IN, 46375, with a listed phone of (708) 860-5432. NPI 1801865332 was issued on 03/16/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DWARAKANATHAN 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 1,795 prescription claims written by this provider, covering 374 Medicare beneficiaries and totaling roughly $453K in drug spend, split 48% brand-name and 52% 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.

Ophthalmology Physician is a mid-sized specialty nationwide, with 22,090 enrolled providers across 56 states and an average of 1,420 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

320 W US HIGHWAY 30
SCHERERVILLE, IN 46375

Provider Details

NPI 1801865332
Specialty Ophthalmology Physician
Credentials MD
Gender Male
NPI Issued 03/16/2006

Hospital and facility affiliations

Facilities where SURENDAR DWARAKANATHAN, 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.

COOK COUNTY
CHICAGO, IL
HELIX EYE CARE PC
SCHERERVILLE, IN

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 SURENDAR DWARAKANATHAN, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.1K

Largest payer

BIOTISSUE HOLDINGS 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.

Brand vs generic prescribing mix · Above average

SURENDAR DWARAKANATHAN, MD — brand share 48.0%
Specialty average (est.)

48% brand-name claims vs 52% generic, on 1,795 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.

1,795
Total Claims
$453K
Total Drug Cost
374
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,388
Total Day Supply
59,272
Brand vs Generic
48% brand / 52% generic
Brand Drug Cost
$419K
Generic Drug Cost
$34K
Antibiotic Claims
36

Patient Demographics

Average Patient Age
73.8 years
Avg HCC Risk Score
1.47
Gender Split
63% female / 37% male
Age Distribution
<65: 40, 65-74: 163, 75-84: 122, 85+: 49

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Prednisolone Acetate
402
Moxifloxacin
Moxifloxacin Hcl
237
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
205
Latanoprost
151
Valacyclovir
Valacyclovir Hcl
66
Timolol Maleate
59
Erythromycin
Erythromycin Base
57
Fluorometholone
55
Prolensa
Bromfenac Sodium
47
Brimonidine Tartrate
39

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

Ophthalmology Physician Overview

How SURENDAR DWARAKANATHAN, MD fits within the Ophthalmology Physician landscape nationally.

22,090
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider

SURENDAR DWARAKANATHAN, MD's 1,795 claims are above the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Indiana

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

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

Frequently Asked Questions

What is SURENDAR DWARAKANATHAN, MD's specialty?
SURENDAR DWARAKANATHAN, MD specializes in Ophthalmology Physician and practices in SCHERERVILLE, Indiana. Credentials: MD.
How much does SURENDAR DWARAKANATHAN, MD prescribe under Medicare Part D?
In 2023, SURENDAR DWARAKANATHAN, MD wrote 1,795 Medicare Part D claims totaling $453K in drug costs for 374 beneficiaries.
Where is SURENDAR DWARAKANATHAN, MD located?
SURENDAR DWARAKANATHAN, MD is located at 320 W US HIGHWAY 30, SCHERERVILLE, IN, 46375. Phone: (708) 860-5432.
What is SURENDAR DWARAKANATHAN, MD's NPI number?
SURENDAR DWARAKANATHAN, MD's National Provider Identifier (NPI) is 1801865332, issued on 03/16/2006.
Does SURENDAR DWARAKANATHAN, MD prescribe more brand-name or generic drugs?
SURENDAR DWARAKANATHAN, MD's prescribing is 48% brand-name and 52% generic drugs by claim count, with $419K in brand drug costs.
How many Ophthalmology Physician providers are there in the US?
There are 22,090 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
What drugs does SURENDAR DWARAKANATHAN, MD prescribe most often?
Based on 2023 Medicare Part D data, SURENDAR DWARAKANATHAN, MD's most frequently prescribed drugs include Prednisolone Acetate, Moxifloxacin, Neomycin-Polymyxin-Dexameth. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SURENDAR DWARAKANATHAN, MD accept Medicare?
SURENDAR DWARAKANATHAN, MD appears in CMS Medicare data with 1,795 Part D claims and 374 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SURENDAR DWARAKANATHAN, MD's credentials?
SURENDAR DWARAKANATHAN, MD's NPI is 1801865332 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