NPI registry status
Active
2026 NPPES data Colon & Rectal Surgery Physician NPI 1689601767 M.D.
Verify on CMS → Lynn O'Connor, M.D.
Colon & Rectal Surgery Physician in Huntington, New York.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,608 in Colon & Rectal Surgery 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
184
Medicare Part D claims · 118 beneficiaries · Colon & Rectal Surgery Physician avg: 196
Generic prescribing
63%
generic claims · 37% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$666.77
15 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Lynn O'Connor, M.D. filed 184 Medicare Part D claims in 2023 as a Colon & Rectal Surgery Physician in Huntington, New York, prescribing 63% generic.
- 184
- Part D claims, 2023
- 63%
- generic prescribing
- $666.77
- industry payments (Sunshine Act)
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.
Lynn O'Connor, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
184 35th percentile higher than 35% of 1,370,886 prescribers
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)
Lynn O'Connor, 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 Lynn O'Connor, M.D.?
Quality data not reportedPrimary specialty
Colon & Rectal Surgery Physician
Medicare Part D claims
184 6% vs specialty avg
Specialty distribution in New York
How Colon & Rectal Surgery Physician compares to other specialties among New York 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 Colon & Rectal Surgery 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).
Lynn O'Connor, M.D. appears in the CMS NPPES registry as a Colon & Rectal Surgery Physician provider holding M.D. credentials at 380 PARK AVE, Huntington, NY, 11743, with a listed phone of (631) 350-6277. NPI 1689601767 was issued on 06/26/2006.
Medicare Part D records for calendar year 2023 show 184 prescription claims written by this provider, covering 118 Medicare beneficiaries and totaling roughly $19K in drug spend, split 37% brand-name and 63% generic by claim count.
Colon & Rectal Surgery Physician is a narrow specialty nationwide, with 1,608 enrolled providers across 50 states and an average of 196 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
Provider Details
| NPI | 1689601767 |
|---|---|
| Specialty | Colon & Rectal Surgery Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 06/26/2006 |
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 Lynn O'Connor, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$667
Largest payer
Axonics, 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 - New York NYSBPMC 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 ~100K New York medical licensees in 2023 - they are NOT specific to Lynn O'Connor, M.D.. To verify Lynn O'Connor, M.D.'s current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases
NYSBPMC 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 New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Lynn O'Connor, M.D. - brand share 37.0%
Colon & Rectal Surgery Physician average
37% brand-name claims vs 63% generic, on 184 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.
184
Total Claims
$19K
Total Drug Cost
118
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 192
- Total Day Supply
- 2,291
- Brand vs Generic
- 37% brand / 63% generic
- Brand Drug Cost
- $11K
- Generic Drug Cost
- $9K
- Antibiotic Claims
- 12
Patient Demographics
- Average Patient Age
- 71.6 years
- Avg HCC Risk Score
- 1.22
- Gender Split
- 73% female / 27% male
- Age Distribution
- <65: 18, 65-74: 60, 75-84: 29, 85+: 11
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Lynn O'Connor, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Clenpiq
Clenpiq
34 claims
- Mesalamine
Mesalamine
20 claims
- Hydrocortisone
Hydrocortisone
17 claims
- Sutab
Sutab
14 claims
| Drug | Claims |
|---|---|
| Clenpiq Sod Picosulf/Mag Ox/Citric Ac | 34 |
| Mesalamine | 20 |
| Hydrocortisone | 17 |
| Sutab Sod Sulf/Pot Chloride/Mag Sulf | 14 |
| Gavilyte-C "Peg3350/Sod Sulf | N/A |
| Sod Sulf-Potass Sulf-Mag Sulf "Sodium | N/A |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Colon & Rectal Surgery Physician Overview
How Lynn O'Connor, M.D. fits within the Colon & Rectal Surgery Physician landscape nationally.
1,608
Colon & Rectal Surgery Physician Providers in US
50
States with Colon & Rectal Surgery Physician
196
Avg Claims per Provider
Lynn O'Connor, M.D.'s 184 claims are below the specialty average of 196.
Nearby Colon & Rectal Surgery Physician Providers in New York
Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as O'Connor.
Dr. Cary Aarons
MD
New York, NY
Dr. Alan Abrams
M.D.
New York, NY
Dr. Samer Abu Salem
MD
New York, NY
Dr. Timothy Adams
M.D.
Williamsville, NY
Dr. Poppy Addison
MD
Staten Island, NY
Compare Colon & Rectal Surgery Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the New York medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Colon & Rectal Surgery Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore New York
Frequently Asked Questions
What is Lynn O'Connor, M.D.'s specialty? ▼
Lynn O'Connor, M.D. specializes in Colon & Rectal Surgery Physician and practices in Huntington, New York. Credentials: M.D..
How much does Lynn O'Connor, M.D. prescribe under Medicare Part D? ▼
In 2023, Lynn O'Connor, M.D. wrote 184 Medicare Part D claims totaling $19K in drug costs for 118 beneficiaries.
Where is Lynn O'Connor, M.D. located? ▼
Lynn O'Connor, M.D. is located at 380 PARK AVE, Huntington, NY, 11743. Phone: (631) 350-6277.
What is Lynn O'Connor, M.D.'s NPI number? ▼
Lynn O'Connor, M.D.'s National Provider Identifier (NPI) is 1689601767, issued on 06/26/2006.
Does Lynn O'Connor, M.D. prescribe more brand-name or generic drugs? ▼
Lynn O'Connor, M.D.'s prescribing is 37% brand-name and 63% generic drugs by claim count, with $11K in brand drug costs.
How many Colon & Rectal Surgery Physician providers are there in the US? ▼
There are 1,608 Colon & Rectal Surgery Physician providers across 50 states in the US. The average Colon & Rectal Surgery Physician provider writes 196 Medicare Part D claims per year.
What drugs does Lynn O'Connor, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Lynn O'Connor, M.D.'s most frequently prescribed drugs include Clenpiq, Mesalamine, Hydrocortisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Lynn O'Connor, M.D. accept Medicare? ▼
Lynn O'Connor, M.D. appears in CMS Medicare data with 184 Part D claims and 118 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Lynn O'Connor, M.D.'s credentials? ▼
Lynn O'Connor, M.D.'s NPI is 1689601767 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 (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
Compiled from official public sources by the PlainDoctor editorial team.