NPI registry status
Active
2026 NPPES data Ophthalmology Physician NPI 1588687750
Verify on CMS → Karen Allison
Ophthalmology Physician in New York, 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 22,090 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
5K
Medicare Part D claims · 783 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
65%
generic claims · 35% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Karen Allison filed 5,126 Medicare Part D claims in 2023 as a Ophthalmology Physician in New York, New York, prescribing 65% generic.
- 5K
- Part D claims, 2023
- 65%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Karen Allison's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
5,126 Top 6% higher than 94% 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 certification likely (heuristic, not verified)
Karen Allison practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Karen Allison?
Quality data not reportedPrimary specialty
Ophthalmology Physician
Medicare Part D claims
5,126 261% vs specialty avg
Specialty distribution in New York
How Ophthalmology 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 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).
Karen Allison appears in the CMS NPPES registry as a Ophthalmology Physician provider at 30 W 60TH ST, New York, NY, 10023, with a listed phone of (212) 459-0001. NPI 1588687750 was issued on 07/26/2006.
Medicare Part D records for calendar year 2023 show 5,126 prescription claims written by this provider, covering 783 Medicare beneficiaries and totaling roughly $1.1 million in drug spend, split 35% brand-name and 65% generic by claim count.
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
Provider Details
| NPI | 1588687750 |
|---|---|
| Specialty | Ophthalmology Physician |
| Gender | Female |
| NPI Issued | 07/26/2006 |
Hospital and facility affiliations
Facilities where Karen Allison 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.
Karen Allison, M.D., P.C.
New York, NY
University OF Rochester Glaucoma Services
Rochester, NY
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Karen Allison. To verify Karen Allison'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
Karen Allison - brand share 35.0%
Ophthalmology Physician average
35% brand-name claims vs 65% generic, on 5,126 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.
5,126
Total Claims
$1.1M
Total Drug Cost
783
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 9,568
- Total Day Supply
- 277,591
- Brand vs Generic
- 35% brand / 65% generic
- Brand Drug Cost
- $908K
- Generic Drug Cost
- $170K
Patient Demographics
- Average Patient Age
- 75.4 years
- Avg HCC Risk Score
- 1.36
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 51, 65-74: 326, 75-84: 284, 85+: 122
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Karen Allison prescribes most
Top Medicare Part D drugs by claim count, 2023
- Latanoprost
Latanoprost
1,216 claims
- Dorzolamide-Timolol
Dorzolamide-Timolol
638 claims
- Brimonidine Tartrate
Brimonidine Tartrate
530 claims
- Dorzolamide Hcl 344
Dorzolamide Hcl
344 claims
- Rhopressa 175
Rhopressa
175 claims
- Rocklatan 172
Rocklatan
172 claims
- Lumigan 155
Lumigan
155 claims
- Prednisolone Acetate 155
Prednisolone Acetate
155 claims
| Drug | Claims |
|---|---|
| Latanoprost | 1,216 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 638 |
| Brimonidine Tartrate | 530 |
| Dorzolamide Hcl | 344 |
| Rhopressa Netarsudil Mesylate | 175 |
| Rocklatan Netarsudil Mesylat/Latanoprost | 172 |
| Lumigan Bimatoprost | 155 |
| Prednisolone Acetate | 155 |
| Restasis Cyclosporine | 154 |
| Simbrinza Brinzolamide/Brimonidine Tart | 153 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Ophthalmology Physician Overview
How Karen Allison 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
Karen Allison's 5,126 claims are above the specialty average of 1,420.
Nearby Ophthalmology Physician Providers in New York
Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Allison.
Dr. Aliaa Abdelhakim Hamed
M.D., PH.D.
New York, NY
Dr. Majida Abdul Gaffar
M.D.
Hawthorne, NY
Dr. David H Abramson
MD
New York, NY
Dr. Frank Accardi
MD
New York, NY
Dr. Jacob Ackerman
MD
Brooklyn, NY
Compare Ophthalmology 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 Ophthalmology 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.
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Frequently Asked Questions
What is Karen Allison's specialty? ▼
Karen Allison specializes in Ophthalmology Physician and practices in New York, New York.
How much does Karen Allison prescribe under Medicare Part D? ▼
In 2023, Karen Allison wrote 5,126 Medicare Part D claims totaling $1.1M in drug costs for 783 beneficiaries.
Where is Karen Allison located? ▼
Karen Allison is located at 30 W 60TH ST, New York, NY, 10023. Phone: (212) 459-0001.
What is Karen Allison's NPI number? ▼
Karen Allison's National Provider Identifier (NPI) is 1588687750, issued on 07/26/2006.
Does Karen Allison prescribe more brand-name or generic drugs? ▼
Karen Allison's prescribing is 35% brand-name and 65% generic drugs by claim count, with $908K 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 Karen Allison prescribe most often? ▼
Based on 2023 Medicare Part D data, Karen Allison's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Brimonidine Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Karen Allison accept Medicare? ▼
Karen Allison appears in CMS Medicare data with 5,126 Part D claims and 783 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Karen Allison's credentials? ▼
Karen Allison's NPI is 1588687750. 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.