NPI registry status
Active
2026 NPPES data Ophthalmology Physician NPI 1811956907 M.D.
Verify on CMS → Bruce Gillers, M.D.
Ophthalmology Physician in Natick, Massachusetts.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 22,388 in Ophthalmology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
92
Medicare Part D claims · 29 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Bruce Gillers, M.D. filed 92 Medicare Part D claims in 2024 as an Ophthalmology Physician in Natick, Massachusetts, prescribing 82% generic.
- 92
- Part D claims, 2024
- 82%
- generic prescribing
- ≥0th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Bruce Gillers, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1811956907), first enumerated 03/20/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 92 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- State context
State board disciplinary context
Massachusetts statewide board action statistics are published annually — these figures describe aggregate state activity, not Bruce Gillers, M.D.'s individual license status. Verify directly with the state medical board.
Source: BORIM annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1811956907 · Ophthalmology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-TRACE · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1811956907
- ENUM-LEGACY 2006
- TAX-MID 22K Ophthalmology Physician
- RX-TRACE 92
- BOOK-LIGHT 732 in Massachusetts
- PHOTO-ENUM Ralph Dado, MD · 2006
Bruce Gillers, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
92 ≥ 0th percentile 0% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
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 reportedPrimary specialty
Ophthalmology Physician
Medicare Part D claims
92 94% vs specialty avg
Specialty distribution in Massachusetts
How Ophthalmology Physician compares to other specialties among Massachusetts providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Ophthalmology Physician. Verify directly:
How MIPS and board certification work
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).
Practice Address
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 · Typical
Bruce Gillers, M.D. - brand share 18.0%
Ophthalmology Physician average
18% brand-name claims vs 82% generic, on 92 2024 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 2024.
92
Total Claims
$12K
Total Drug Cost
29
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 183.267
- Total Day Supply
- 5,219
- Brand vs Generic
- 18% brand / 82% generic
- Brand Drug Cost
- $8K
- Generic Drug Cost
- $4K
Patient Demographics
- Average Patient Age
- 81.2 years
- Avg HCC Risk Score
- 1.24
- Gender Split
- 45% female / 55% male
- Age Distribution
- <65: 0, 65-74: N/A, 75-84: 14, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Latanoprost | 18 |
| Dorzolamide Hcl | 12 |
* 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.
22,388
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,490
Avg Claims per Provider
Bruce Gillers, M.D.'s 92 claims are below the specialty average of 1,490.
Nationwide Ophthalmology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Gillers, both outside Massachusetts so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
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.
One of 732 Ophthalmology Physician providers enrolled in Massachusetts, 5 are shown here.
Dr. Mark Abelson
M.D.
Andover, MA
Dr. Inas Aboobakar
M.D.
Boston, MA
Dr. Alessandro Adad Jammal
MD, PHD
Boston, MA
Dr. David Agahigian
M.D.
Springfield, MA
Dr. Kanika Agarwal
MD
Boston, MA
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 2024, Bruce Gillers, M.D. wrote 92 Medicare Part D claims totaling $12K in drug costs for 29 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 18% brand-name and 82% generic drugs by claim count, with $8K in brand drug costs.
How many Ophthalmology Physician providers are there in the US? ▼
There are 22,388 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,490 Medicare Part D claims per year.
What drugs does Bruce Gillers, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Bruce Gillers, M.D.'s most frequently prescribed drugs include Latanoprost, Dorzolamide Hcl. 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 92 Part D claims and 29 Medicare beneficiaries in 2024. 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
View source datasets and methodology notes
- 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 (2024). 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.