2026 NPPES data Glaucoma Specialist (Ophthalmology) Physician NPI 1740279991 M.D.
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DALE OATES, M.D.

Glaucoma Specialist (Ophthalmology) Physician in EAST WEYMOUTH, 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
2K
Medicare Part D claims · 370 beneficiaries · Glaucoma Specialist (Ophthalmology) Physician avg: 3K
Generic prescribing
76%
generic claims · 24% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: DALE OATES, M.D. is a Glaucoma Specialist (Ophthalmology) Physician ([object Object]) practicing in EAST WEYMOUTH, Massachusetts with a Medicare Part D prescribing footprint of 2K claims across 370 beneficiaries — 24% brand-name prescribing .

What stands out: DALE OATES, M.D. filed 1,539 Medicare Part D claims in 2023 across EAST WEYMOUTH, Massachusetts. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

DALE OATES, 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).

DALE OATES, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 10/20/2005

NPI 1740279991

Primary specialty

Glaucoma Specialist (Ophthalmology) Physician

Rare

354 US NPIs in this specialty

Medicare Part D claims

1,539 48% vs specialty avg

2023 prescription claims

Specialty avg: 2,962

Specialty distribution in Massachusetts

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

Massachusetts providers

Glaucoma Specialist (Ophthalmology) Physician share within Massachusetts

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

Specialty board-certification context

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

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

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

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

DALE OATES, M.D. is a Glaucoma Specialist (Ophthalmology) Physician provider practicing in EAST WEYMOUTH, Massachusetts, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1740279991. 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.

DALE OATES, M.D. appears in the CMS NPPES registry as a Glaucoma Specialist (Ophthalmology) Physician provider holding M.D. credentials at 97 LIBBEY INDUSTRIAL PKWY STE 100, EAST WEYMOUTH, MA, 02189, with a listed phone of (781) 331-3300. NPI 1740279991 was issued on 10/20/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what OATES 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 1,539 prescription claims written by this provider, covering 370 Medicare beneficiaries and totaling roughly $191K in drug spend, split 24% brand-name and 76% 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.

Glaucoma Specialist (Ophthalmology) Physician is a narrow specialty nationwide, with 354 enrolled providers across 42 states and an average of 2,962 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

97 LIBBEY INDUSTRIAL PKWY STE 100
EAST WEYMOUTH, MA 02189

Provider Details

NPI 1740279991
Specialty Glaucoma Specialist (Ophthalmology) Physician
Credentials M.D.
Gender Male
NPI Issued 10/20/2005

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 DALE OATES, M.D.. To verify DALE OATES, 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

DALE OATES, M.D. — brand share 24.0%
Specialty average (est.)

24% brand-name claims vs 76% generic, on 1,539 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.

1,539
Total Claims
$191K
Total Drug Cost
370
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,851
Total Day Supply
81,928
Brand vs Generic
24% brand / 76% generic
Brand Drug Cost
$154K
Generic Drug Cost
$37K

Patient Demographics

Average Patient Age
80.8 years
Avg HCC Risk Score
1.17
Gender Split
62% female / 38% 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
605
Timolol Maleate
195
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
174
Brimonidine Tartrate
106
Lumigan
Bimatoprost
75
Rhopressa
Netarsudil Mesylate
58
Erythromycin
Erythromycin Base
41
Travoprost
32
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
27
Bimatoprost
25

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

Glaucoma Specialist (Ophthalmology) Physician Overview

How DALE OATES, M.D. fits within the Glaucoma Specialist (Ophthalmology) Physician landscape nationally.

354
Glaucoma Specialist (Ophthalmology) Physician Providers in US
42
States with Glaucoma Specialist (Ophthalmology) Physician
2,962
Avg Claims per Provider

DALE OATES, M.D.'s 1,539 claims are below the specialty average of 2,962.

Nearby Glaucoma Specialist (Ophthalmology) Physician Providers in Massachusetts

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

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

Frequently Asked Questions

What is DALE OATES, M.D.'s specialty?
DALE OATES, M.D. specializes in Glaucoma Specialist (Ophthalmology) Physician and practices in EAST WEYMOUTH, Massachusetts. Credentials: M.D..
How much does DALE OATES, M.D. prescribe under Medicare Part D?
In 2023, DALE OATES, M.D. wrote 1,539 Medicare Part D claims totaling $191K in drug costs for 370 beneficiaries.
Where is DALE OATES, M.D. located?
DALE OATES, M.D. is located at 97 LIBBEY INDUSTRIAL PKWY STE 100, EAST WEYMOUTH, MA, 02189. Phone: (781) 331-3300.
What is DALE OATES, M.D.'s NPI number?
DALE OATES, M.D.'s National Provider Identifier (NPI) is 1740279991, issued on 10/20/2005.
Does DALE OATES, M.D. prescribe more brand-name or generic drugs?
DALE OATES, M.D.'s prescribing is 24% brand-name and 76% generic drugs by claim count, with $154K in brand drug costs.
How many Glaucoma Specialist (Ophthalmology) Physician providers are there in the US?
There are 354 Glaucoma Specialist (Ophthalmology) Physician providers across 42 states in the US. The average Glaucoma Specialist (Ophthalmology) Physician provider writes 2,962 Medicare Part D claims per year.
What drugs does DALE OATES, M.D. prescribe most often?
Based on 2023 Medicare Part D data, DALE OATES, M.D.'s most frequently prescribed drugs include Latanoprost, Timolol Maleate, Dorzolamide-Timolol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DALE OATES, M.D. accept Medicare?
DALE OATES, M.D. appears in CMS Medicare data with 1,539 Part D claims and 370 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DALE OATES, M.D.'s credentials?
DALE OATES, M.D.'s NPI is 1740279991 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