2026 NPPES data Ophthalmology Physician NPI 1255481065 M.D.
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ANN BURNHAM, M.D.

Ophthalmology Physician in LEXINGTON, 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
161
Medicare Part D claims · 66 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
81%
generic claims · 19% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ANN BURNHAM, M.D. filed 161 Medicare Part D claims in 2023 as a Ophthalmology Physician in LEXINGTON, Massachusetts, prescribing 81% generic.

161
Part D claims, 2023
81%
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.

ANN BURNHAM, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

161 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)

ANN BURNHAM, 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 ANN BURNHAM, M.D.?

Quality data not reported

NPI registry status

Active

Issued 01/12/2007

NPI 1255481065

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

161 89% 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).

ANN BURNHAM, M.D. is a Ophthalmology Physician provider practicing in LEXINGTON, Massachusetts, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1255481065. 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.

ANN BURNHAM, M.D. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding M.D. credentials at 21 WORTHEN RD, LEXINGTON, MA, 02421, with a listed phone of (781) 862-1620. NPI 1255481065 was issued on 01/12/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BURNHAM 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 161 prescription claims written by this provider, covering 66 Medicare beneficiaries and totaling roughly $8K in drug spend, split 19% brand-name and 81% 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

21 WORTHEN RD
LEXINGTON, MA 02421

Provider Details

NPI 1255481065
Specialty Ophthalmology Physician
Credentials M.D.
Gender Female
NPI Issued 01/12/2007

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 ANN BURNHAM, M.D.. To verify ANN BURNHAM, 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

ANN BURNHAM, M.D. — brand share 19.0%
Specialty average (est.)

19% brand-name claims vs 81% generic, on 161 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.

161
Total Claims
$8K
Total Drug Cost
66
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
403
Total Day Supply
11,826
Brand vs Generic
19% brand / 81% generic
Brand Drug Cost
$3K
Generic Drug Cost
$5K

Patient Demographics

Average Patient Age
79.1 years
Avg HCC Risk Score
1.12
Gender Split
64% female / 36% male
Age Distribution
<65: 0, 65-74: 24, 75-84: 26, 85+: 16

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
92
Brimonidine Tartrate
18

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

Ophthalmology Physician Overview

How ANN BURNHAM, 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

ANN BURNHAM, M.D.'s 161 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 BURNHAM.

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

Frequently Asked Questions

What is ANN BURNHAM, M.D.'s specialty?
ANN BURNHAM, M.D. specializes in Ophthalmology Physician and practices in LEXINGTON, Massachusetts. Credentials: M.D..
How much does ANN BURNHAM, M.D. prescribe under Medicare Part D?
In 2023, ANN BURNHAM, M.D. wrote 161 Medicare Part D claims totaling $8K in drug costs for 66 beneficiaries.
Where is ANN BURNHAM, M.D. located?
ANN BURNHAM, M.D. is located at 21 WORTHEN RD, LEXINGTON, MA, 02421. Phone: (781) 862-1620.
What is ANN BURNHAM, M.D.'s NPI number?
ANN BURNHAM, M.D.'s National Provider Identifier (NPI) is 1255481065, issued on 01/12/2007.
Does ANN BURNHAM, M.D. prescribe more brand-name or generic drugs?
ANN BURNHAM, M.D.'s prescribing is 19% brand-name and 81% generic drugs by claim count, with $3K 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 ANN BURNHAM, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ANN BURNHAM, M.D.'s most frequently prescribed drugs include Latanoprost, Brimonidine Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANN BURNHAM, M.D. accept Medicare?
ANN BURNHAM, M.D. appears in CMS Medicare data with 161 Part D claims and 66 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANN BURNHAM, M.D.'s credentials?
ANN BURNHAM, M.D.'s NPI is 1255481065 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