2026 NPPES data Ophthalmology Physician NPI 1811956907 M.D.
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BRUCE GILLERS, M.D.

Ophthalmology Physician in NATICK, 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
149
Medicare Part D claims · 38 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
71%
generic claims · 29% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

BRUCE GILLERS, M.D. filed 149 Medicare Part D claims in 2023 as a Ophthalmology Physician in NATICK, Massachusetts, prescribing 71% generic.

149
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.

BRUCE GILLERS, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

149 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 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)

BRUCE GILLERS, 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 BRUCE GILLERS, M.D.?

Quality data not reported

NPI registry status

Active

Issued 03/20/2006

NPI 1811956907

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

149 90% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

Specialty distribution in Massachusetts

How Ophthalmology Physician compares to other specialties among Massachusetts providers

Massachusetts providers

Ophthalmology Physician share within Massachusetts

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

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).

BRUCE GILLERS, M.D. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding M.D. credentials at 67 UNION ST, NATICK, MA, 01760, with a listed phone of (508) 651-3601. NPI 1811956907 was issued on 03/20/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GILLERS 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 149 prescription claims written by this provider, covering 38 Medicare beneficiaries and totaling roughly $28K 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.

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

67 UNION ST
NATICK, MA 01760

Provider Details

NPI 1811956907
Specialty Ophthalmology Physician
Credentials M.D.
Gender Male
NPI Issued 03/20/2006

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 BRUCE GILLERS, M.D.. To verify BRUCE GILLERS, M.D.'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 · Above average

BRUCE GILLERS, M.D. — brand share 29.0%
Specialty average (est.)

29% brand-name claims vs 71% generic, on 149 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.

149
Total Claims
$28K
Total Drug Cost
38
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
297
Total Day Supply
8,627
Brand vs Generic
29% brand / 71% generic
Brand Drug Cost
$24K
Generic Drug Cost
$4K

Patient Demographics

Average Patient Age
80.4 years
Avg HCC Risk Score
1.29
Gender Split
42% female / 58% male

Top Prescribed Drugs (Medicare Part D)

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

What BRUCE GILLERS, 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
Latanoprost
51
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
20
Lumigan
Bimatoprost
14

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

Ophthalmology Physician Overview

How BRUCE GILLERS, 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

BRUCE GILLERS, M.D.'s 149 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Massachusetts

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

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

Frequently Asked Questions

What is BRUCE GILLERS, M.D.'s specialty?
BRUCE GILLERS, M.D. specializes in Ophthalmology Physician and practices in NATICK, Massachusetts. Credentials: M.D..
How much does BRUCE GILLERS, M.D. prescribe under Medicare Part D?
In 2023, BRUCE GILLERS, M.D. wrote 149 Medicare Part D claims totaling $28K in drug costs for 38 beneficiaries.
Where is BRUCE GILLERS, M.D. located?
BRUCE GILLERS, M.D. is located at 67 UNION ST, NATICK, MA, 01760. Phone: (508) 651-3601.
What is BRUCE GILLERS, M.D.'s NPI number?
BRUCE GILLERS, M.D.'s National Provider Identifier (NPI) is 1811956907, issued on 03/20/2006.
Does BRUCE GILLERS, M.D. prescribe more brand-name or generic drugs?
BRUCE GILLERS, M.D.'s prescribing is 29% brand-name and 71% generic drugs by claim count, with $24K 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 BRUCE GILLERS, M.D. prescribe most often?
Based on 2023 Medicare Part D data, BRUCE GILLERS, M.D.'s most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Lumigan. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BRUCE GILLERS, M.D. accept Medicare?
BRUCE GILLERS, M.D. appears in CMS Medicare data with 149 Part D claims and 38 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BRUCE GILLERS, M.D.'s credentials?
BRUCE GILLERS, M.D.'s NPI is 1811956907 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