2026 NPPES data Ophthalmology Physician NPI 1639150451
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ANN BAJART

Ophthalmology Physician in BOSTON, 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
733
Medicare Part D claims · 200 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
62%
generic claims · 38% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$224.73
2 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ANN BAJART is a Ophthalmology Physician ([object Object]) practicing in BOSTON, Massachusetts with a Medicare Part D prescribing footprint of 733 claims across 200 beneficiaries — 38% brand-name prescribing . Industry payments of $224.73 across 2 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ANN BAJART filed 733 Medicare Part D claims in 2023 across BOSTON, Massachusetts. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ANN BAJART practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

ANN BAJART at a glance

Quality data not reported

NPI registry status

Active

Issued 11/09/2005

NPI 1639150451

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

733 48% 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 BAJART is a Ophthalmology Physician provider practicing in BOSTON, Massachusetts, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1639150451. 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 BAJART appears in the CMS NPPES registry as a Ophthalmology Physician provider at 50 STANIFORD ST, BOSTON, MA, 02114, with a listed phone of (617) 367-4800. NPI 1639150451 was issued on 11/09/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BAJART 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 733 prescription claims written by this provider, covering 200 Medicare beneficiaries and totaling roughly $99K in drug spend, split 38% brand-name and 62% 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

50 STANIFORD ST
BOSTON, MA 02114

Provider Details

NPI 1639150451
Specialty Ophthalmology Physician
Gender Female
NPI Issued 11/09/2005

Hospital and facility affiliations

Facilities where ANN BAJART 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.

OPHTHALMIC CONSULTANTS OF BOSTON INC
BOSTON, 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 ANN BAJART. Source: openpaymentsdata.cms.gov.

Total received

$225

Largest payer

Tarsus Pharmaceuticals, 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 ANN BAJART. To verify ANN BAJART'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

ANN BAJART — brand share 38.0%
Specialty average (est.)

38% brand-name claims vs 62% generic, on 733 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.

733
Total Claims
$99K
Total Drug Cost
200
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,594
Total Day Supply
46,571
Brand vs Generic
38% brand / 62% generic
Brand Drug Cost
$85K
Generic Drug Cost
$14K
Antibiotic Claims
40

Patient Demographics

Average Patient Age
78.9 years
Avg HCC Risk Score
1.13
Gender Split
65% female / 36% 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
235
Prednisolone Acetate
71
Timolol Maleate
53
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
35
Dorzolamide Hcl
32
Doxycycline Monohydrate
31
Restasis
Cyclosporine
26
Brimonidine Tartrate
24
Fluorometholone
23
Ofloxacin
17

* 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 BAJART 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 BAJART's 733 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 BAJART.

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

Frequently Asked Questions

What is ANN BAJART's specialty?
ANN BAJART specializes in Ophthalmology Physician and practices in BOSTON, Massachusetts.
How much does ANN BAJART prescribe under Medicare Part D?
In 2023, ANN BAJART wrote 733 Medicare Part D claims totaling $99K in drug costs for 200 beneficiaries.
Where is ANN BAJART located?
ANN BAJART is located at 50 STANIFORD ST, BOSTON, MA, 02114. Phone: (617) 367-4800.
What is ANN BAJART's NPI number?
ANN BAJART's National Provider Identifier (NPI) is 1639150451, issued on 11/09/2005.
Does ANN BAJART prescribe more brand-name or generic drugs?
ANN BAJART's prescribing is 38% brand-name and 62% generic drugs by claim count, with $85K 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 BAJART prescribe most often?
Based on 2023 Medicare Part D data, ANN BAJART's most frequently prescribed drugs include Latanoprost, Prednisolone Acetate, Timolol Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANN BAJART accept Medicare?
ANN BAJART appears in CMS Medicare data with 733 Part D claims and 200 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANN BAJART's credentials?
ANN BAJART's NPI is 1639150451. 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