2026 NPPES data Ophthalmology Physician NPI 1891779286 M.D.
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ASHIM AGGARWAL, M.D.

Ophthalmology Physician in EAST LANSING, Michigan. 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
611
Medicare Part D claims · 159 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
89.8765/100
▲ 7 pts above national avg 83.1 · [object Object]
Industry payments
$738.2
17 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ASHIM AGGARWAL, M.D. is a Ophthalmology Physician ([object Object]) practicing in EAST LANSING, Michigan with a Medicare Part D prescribing footprint of 611 claims across 159 beneficiaries — 20% brand-name prescribing . Their CMS MIPS Final Score of 89.8765/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $738.2 across 17 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ASHIM AGGARWAL, M.D. reported a CMS MIPS final score of 89.8765 out of 100, above the 83.1 national average, and filed 611 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ASHIM AGGARWAL, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

ASHIM AGGARWAL, M.D. at a glance

High performer (top quartile)

NPI registry status

Active

Issued 11/30/2005

NPI 1891779286

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

611 57% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

89.8765/100 6.776499999999999% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Michigan

How Ophthalmology Physician compares to other specialties among Michigan providers

Michigan providers

Ophthalmology Physician share within Michigan

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

Medicare quality performance — MIPS

ASHIM AGGARWAL, M.D.'s 2023 MIPS final score plotted against the Ophthalmology Physician national average

High performer (top quartile)
MIPS Final Score
89.8765/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Ophthalmology Physician) — 89.8765/100 vs national avg 83.1

0%100%National avg83%89.9%
MIPS final score (Ophthalmology Physician) — 89.8765/100 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).

ASHIM AGGARWAL, M.D. is a Ophthalmology Physician provider practicing in EAST LANSING, Michigan, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1891779286. 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.

ASHIM AGGARWAL, M.D. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding M.D. credentials at 1070 TROWBRIDGE RD, EAST LANSING, MI, 48823, with a listed phone of (517) 574-5850. NPI 1891779286 was issued on 11/30/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AGGARWAL 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 611 prescription claims written by this provider, covering 159 Medicare beneficiaries and totaling roughly $37K in drug spend, split 20% brand-name and 80% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 89.8765/100 for the 2023 performance year (Quality 71.6667), compared with the national average of 83.1.

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

1070 TROWBRIDGE RD
EAST LANSING, MI 48823

Provider Details

NPI 1891779286
Specialty Ophthalmology Physician
Credentials M.D.
Gender Male
NPI Issued 11/30/2005

CMS Quality Score (MIPS)

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

89.8765
Final Score
Avg: 83.1
71.6667
Quality

Reporting: Individual

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 ASHIM AGGARWAL, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$738

Largest payer

Regeneron Healthcare Solutions, 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 — Michigan MI-BOM 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 ~41K Michigan medical licensees in 2023 — they are NOT specific to ASHIM AGGARWAL, M.D.. To verify ASHIM AGGARWAL, M.D.'s current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM 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 Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

ASHIM AGGARWAL, M.D. — brand share 20.0%
Specialty average (est.)

20% brand-name claims vs 80% generic, on 611 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.

611
Total Claims
$37K
Total Drug Cost
159
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,066
Total Day Supply
31,252
Brand vs Generic
20% brand / 80% generic
Brand Drug Cost
$20K
Generic Drug Cost
$16K

Patient Demographics

Average Patient Age
78.1 years
Avg HCC Risk Score
1.61
Gender Split
54% female / 46% male
Age Distribution
<65: 12, 65-74: 46, 75-84: 57, 85+: 44

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
242
Latanoprost
106
Brimonidine Tartrate
52
Timolol Maleate
49
Prednisolone Acetate
42
Dorzolamide Hcl
22
Cyclosporine
19

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

Ophthalmology Physician Overview

How ASHIM AGGARWAL, 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

ASHIM AGGARWAL, M.D.'s 611 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Michigan

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

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

Frequently Asked Questions

What is ASHIM AGGARWAL, M.D.'s specialty?
ASHIM AGGARWAL, M.D. specializes in Ophthalmology Physician and practices in EAST LANSING, Michigan. Credentials: M.D..
How much does ASHIM AGGARWAL, M.D. prescribe under Medicare Part D?
In 2023, ASHIM AGGARWAL, M.D. wrote 611 Medicare Part D claims totaling $37K in drug costs for 159 beneficiaries.
What is ASHIM AGGARWAL, M.D.'s Medicare quality score?
ASHIM AGGARWAL, M.D. has a CMS MIPS Final Score of 89.8765/100 (Quality: 71.6667). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ASHIM AGGARWAL, M.D. located?
ASHIM AGGARWAL, M.D. is located at 1070 TROWBRIDGE RD, EAST LANSING, MI, 48823. Phone: (517) 574-5850.
What is ASHIM AGGARWAL, M.D.'s NPI number?
ASHIM AGGARWAL, M.D.'s National Provider Identifier (NPI) is 1891779286, issued on 11/30/2005.
Does ASHIM AGGARWAL, M.D. prescribe more brand-name or generic drugs?
ASHIM AGGARWAL, M.D.'s prescribing is 20% brand-name and 80% generic drugs by claim count, with $20K 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 ASHIM AGGARWAL, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ASHIM AGGARWAL, M.D.'s most frequently prescribed drugs include Dorzolamide-Timolol, Latanoprost, Brimonidine Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ASHIM AGGARWAL, M.D. accept Medicare?
ASHIM AGGARWAL, M.D. appears in CMS Medicare data with 611 Part D claims and 159 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ASHIM AGGARWAL, M.D.'s credentials?
ASHIM AGGARWAL, M.D.'s NPI is 1891779286 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.
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