2026 NPPES data Retina Specialist (Ophthalmology) Physician NPI 1932364817 MD
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NAMRATA NANDAKUMAR, MD

Retina Specialist (Ophthalmology) Physician in PEABODY, Massachusetts. 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
1K
Medicare Part D claims · 227 beneficiaries · Retina Specialist (Ophthalmology) Physician avg: 558
Generic prescribing
79%
generic claims · 21% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$172.37
8 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: NAMRATA NANDAKUMAR, MD is a Retina Specialist (Ophthalmology) Physician ([object Object]) practicing in PEABODY, Massachusetts with a Medicare Part D prescribing footprint of 1K claims across 227 beneficiaries — 21% brand-name prescribing . Industry payments of $172.37 across 8 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: NAMRATA NANDAKUMAR, MD filed 1,193 Medicare Part D claims in 2023 across PEABODY, Massachusetts. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

NAMRATA NANDAKUMAR, 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).

NAMRATA NANDAKUMAR, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 07/21/2008

NPI 1932364817

Primary specialty

Retina Specialist (Ophthalmology) Physician

Niche

913 US NPIs in this specialty

Medicare Part D claims

1,193 114% vs specialty avg

2023 prescription claims

Specialty avg: 558

Specialty distribution in Massachusetts

How Retina Specialist (Ophthalmology) Physician compares to other specialties among Massachusetts providers

Massachusetts providers

Retina Specialist (Ophthalmology) Physician share within Massachusetts

1. Retina Specialist (Ophthalmology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Retina Specialist (Ophthalmology) Physician share within Massachusetts

Specialty board-certification context

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

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

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

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

NAMRATA NANDAKUMAR, MD is a Retina Specialist (Ophthalmology) Physician provider practicing in PEABODY, Massachusetts, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1932364817. 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.

NAMRATA NANDAKUMAR, MD appears in the CMS NPPES registry as a Retina Specialist (Ophthalmology) Physician provider holding MD credentials at 39 CROSS ST STE 201, PEABODY, MA, 01960, with a listed phone of (978) 854-5090. NPI 1932364817 was issued on 07/21/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NANDAKUMAR 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 1,193 prescription claims written by this provider, covering 227 Medicare beneficiaries and totaling roughly $64K in drug spend, split 21% brand-name and 79% 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.

Retina Specialist (Ophthalmology) Physician is a narrow specialty nationwide, with 913 enrolled providers across 48 states and an average of 558 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

39 CROSS ST STE 201
PEABODY, MA 01960

Provider Details

NPI 1932364817
Specialty Retina Specialist (Ophthalmology) Physician
Credentials MD
Gender Female
NPI Issued 07/21/2008

Hospital and facility affiliations

Facilities where NAMRATA NANDAKUMAR, 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.

JOHN J WEITER MD PC
PEABODY, MA
NIELSEN EYE CENTER, INC.
QUINCY, MA

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 NAMRATA NANDAKUMAR, MD. Source: openpaymentsdata.cms.gov.

Total received

$172

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 — Massachusetts BORIM 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 ~38K Massachusetts medical licensees in 2023 — they are NOT specific to NAMRATA NANDAKUMAR, MD. To verify NAMRATA NANDAKUMAR, MD's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases

BORIM 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 Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

NAMRATA NANDAKUMAR, MD — brand share 21.0%
Specialty average (est.)

21% brand-name claims vs 79% generic, on 1,193 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.

1,193
Total Claims
$64K
Total Drug Cost
227
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,853
Total Day Supply
50,556
Brand vs Generic
21% brand / 79% generic
Brand Drug Cost
$39K
Generic Drug Cost
$24K

Patient Demographics

Average Patient Age
77.8 years
Avg HCC Risk Score
1.28
Gender Split
48% female / 52% male

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
375
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
248
Prednisolone Acetate
114
Brimonidine Tartrate
75
Ketorolac Tromethamine
53
Atropine Sulfate
46
Bacitracin-Polymyxin
Bacitracin/Polymyxin B Sulfate
44
Brimonidine Tartrate-Timolol
Brimonidine Tartrate/Timolol
39
Timolol Maleate
39
Diclofenac Sodium
38

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

Retina Specialist (Ophthalmology) Physician Overview

How NAMRATA NANDAKUMAR, MD fits within the Retina Specialist (Ophthalmology) Physician landscape nationally.

913
Retina Specialist (Ophthalmology) Physician Providers in US
48
States with Retina Specialist (Ophthalmology) Physician
558
Avg Claims per Provider

NAMRATA NANDAKUMAR, MD's 1,193 claims are above the specialty average of 558.

Nearby Retina Specialist (Ophthalmology) Physician Providers in Massachusetts

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

Compare Retina Specialist (Ophthalmology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is NAMRATA NANDAKUMAR, MD's specialty?
NAMRATA NANDAKUMAR, MD specializes in Retina Specialist (Ophthalmology) Physician and practices in PEABODY, Massachusetts. Credentials: MD.
How much does NAMRATA NANDAKUMAR, MD prescribe under Medicare Part D?
In 2023, NAMRATA NANDAKUMAR, MD wrote 1,193 Medicare Part D claims totaling $64K in drug costs for 227 beneficiaries.
Where is NAMRATA NANDAKUMAR, MD located?
NAMRATA NANDAKUMAR, MD is located at 39 CROSS ST STE 201, PEABODY, MA, 01960. Phone: (978) 854-5090.
What is NAMRATA NANDAKUMAR, MD's NPI number?
NAMRATA NANDAKUMAR, MD's National Provider Identifier (NPI) is 1932364817, issued on 07/21/2008.
Does NAMRATA NANDAKUMAR, MD prescribe more brand-name or generic drugs?
NAMRATA NANDAKUMAR, MD's prescribing is 21% brand-name and 79% generic drugs by claim count, with $39K in brand drug costs.
How many Retina Specialist (Ophthalmology) Physician providers are there in the US?
There are 913 Retina Specialist (Ophthalmology) Physician providers across 48 states in the US. The average Retina Specialist (Ophthalmology) Physician provider writes 558 Medicare Part D claims per year.
What drugs does NAMRATA NANDAKUMAR, MD prescribe most often?
Based on 2023 Medicare Part D data, NAMRATA NANDAKUMAR, MD's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Prednisolone Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NAMRATA NANDAKUMAR, MD accept Medicare?
NAMRATA NANDAKUMAR, MD appears in CMS Medicare data with 1,193 Part D claims and 227 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NAMRATA NANDAKUMAR, MD's credentials?
NAMRATA NANDAKUMAR, MD's NPI is 1932364817 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