2026 NPPES data Ophthalmology Physician NPI 1033163894 M.D.
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ERSALAN RAHMAN, M.D.

Ophthalmology Physician in SOUTH BEND, 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
3K
Medicare Part D claims · 586 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
62%
generic claims · 38% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$57.63
2 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ERSALAN RAHMAN, M.D. is a Ophthalmology Physician ([object Object]) practicing in SOUTH BEND, Indiana with a Medicare Part D prescribing footprint of 3K claims across 586 beneficiaries — 38% brand-name prescribing . Industry payments of $57.63 across 2 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ERSALAN RAHMAN, M.D. filed 2,614 Medicare Part D claims in 2023 across SOUTH BEND, Indiana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ERSALAN RAHMAN, M.D. 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).

ERSALAN RAHMAN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 05/19/2006

NPI 1033163894

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

2,614 84% 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).

ERSALAN RAHMAN, M.D. is a Ophthalmology Physician provider practicing in SOUTH BEND, Indiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1033163894. 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.

ERSALAN RAHMAN, M.D. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding M.D. credentials at 211 N EDDY ST, SOUTH BEND, IN, 46617, with a listed phone of (574) 237-9334. NPI 1033163894 was issued on 05/19/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RAHMAN 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 2,614 prescription claims written by this provider, covering 586 Medicare beneficiaries and totaling roughly $210K in drug spend, split 38% brand-name and 62% 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

211 N EDDY ST
SOUTH BEND, IN 46617

Provider Details

NPI 1033163894
Specialty Ophthalmology Physician
Credentials M.D.
Gender Male
NPI Issued 05/19/2006

Hospital and facility affiliations

Facilities where ERSALAN RAHMAN, 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.

THE SOUTH BEND CLINIC LLC
SOUTH BEND, 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 ERSALAN RAHMAN, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$58

Largest payer

Tarsus Pharmaceuticals, 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

ERSALAN RAHMAN, M.D. — brand share 38.0%
Specialty average (est.)

38% brand-name claims vs 62% generic, on 2,614 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.

2,614
Total Claims
$210K
Total Drug Cost
586
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,986
Total Day Supply
141,220
Brand vs Generic
38% brand / 62% generic
Brand Drug Cost
$159K
Generic Drug Cost
$51K

Patient Demographics

Average Patient Age
77.4 years
Avg HCC Risk Score
1.17
Gender Split
63% female / 37% male
Age Distribution
<65: 19, 65-74: 196, 75-84: 259, 85+: 112

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Latanoprost
600
Prednisolone Acetate
449
Timolol Maleate
406
Brimonidine Tartrate
207
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
131
Gatifloxacin
100
Dorzolamide Hcl
96
Moxifloxacin
Moxifloxacin Hcl
90
Ketorolac Tromethamine
63
Lumigan
Bimatoprost
54

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

Ophthalmology Physician Overview

How ERSALAN RAHMAN, M.D. 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

ERSALAN RAHMAN, M.D.'s 2,614 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 RAHMAN.

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

Frequently Asked Questions

What is ERSALAN RAHMAN, M.D.'s specialty?
ERSALAN RAHMAN, M.D. specializes in Ophthalmology Physician and practices in SOUTH BEND, Indiana. Credentials: M.D..
How much does ERSALAN RAHMAN, M.D. prescribe under Medicare Part D?
In 2023, ERSALAN RAHMAN, M.D. wrote 2,614 Medicare Part D claims totaling $210K in drug costs for 586 beneficiaries.
Where is ERSALAN RAHMAN, M.D. located?
ERSALAN RAHMAN, M.D. is located at 211 N EDDY ST, SOUTH BEND, IN, 46617. Phone: (574) 237-9334.
What is ERSALAN RAHMAN, M.D.'s NPI number?
ERSALAN RAHMAN, M.D.'s National Provider Identifier (NPI) is 1033163894, issued on 05/19/2006.
Does ERSALAN RAHMAN, M.D. prescribe more brand-name or generic drugs?
ERSALAN RAHMAN, M.D.'s prescribing is 38% brand-name and 62% generic drugs by claim count, with $159K 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 ERSALAN RAHMAN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ERSALAN RAHMAN, M.D.'s most frequently prescribed drugs include Latanoprost, Prednisolone Acetate, Timolol Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ERSALAN RAHMAN, M.D. accept Medicare?
ERSALAN RAHMAN, M.D. appears in CMS Medicare data with 2,614 Part D claims and 586 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ERSALAN RAHMAN, M.D.'s credentials?
ERSALAN RAHMAN, M.D.'s NPI is 1033163894 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