NPI registry status
Active
2026 NPPES data Ophthalmology Physician NPI 1326076795 MD
Verify on CMS → Prior Parker, MD
Ophthalmology Physician in Mystic, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 22,082 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
3K
Medicare Part D claims · 590 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
70%
generic claims · 30% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
22.8/100
▼ 60 pts below national avg 83.1 · Below average
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
Prior Parker, MD reported a CMS MIPS final score of 22.8/100 - below the 83.1 national average - and filed 2,819 Medicare Part D claims in 2023.
- 22.8/100
- MIPS score · -60 vs avg
- 3K
- Part D claims, 2023
- 70%
- 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.
Prior Parker, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
23 3rd percentile higher than 3% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Prior Parker, MD sits
This provider among ophthalmology physician peers
Across the 9,866 ophthalmology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Prior Parker, MD writes more Part D claims than 84% of them and scores higher on MIPS quality than 4% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one ophthalmology physician peer from a representative sample of 60; the gold marker is Prior Parker, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Prior Parker, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Prior Parker, MD?
Below national averagePrimary specialty
Ophthalmology Physician
Medicare Part D claims
2,819 99% vs specialty avg
MIPS final score
22.8/100 60.3 pts vs avg
Specialty distribution in Connecticut
How Ophthalmology Physician compares to other specialties among Connecticut providers
Medicare quality performance, MIPS
Prior Parker, MD's 2023 MIPS final score plotted against the Ophthalmology Physician national average
- MIPS Final Score
- 22.8/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Ophthalmology Physician) - 22.8/100 vs national avg 83.1
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).
Prior Parker, MD appears in the CMS NPPES registry as an Ophthalmology Physician provider holding MD credentials at 200 SANDY HOLLOW RD, Mystic, CT, 06355, with a listed phone of (860) 536-4916. NPI 1326076795 was issued on 06/28/2006.
Medicare Part D records for calendar year 2023 show 2,819 prescription claims written by this provider, covering 590 Medicare beneficiaries and totaling roughly $446K in drug spend, split 30% brand-name and 70% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 22.8/100 for the 2023 performance year (Quality 0, Cost 75.9), compared with the national average of 83.1.
Ophthalmology Physician is a mid-sized specialty nationwide, with 22,082 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 | 1326076795 |
|---|---|
| Specialty | Ophthalmology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/28/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
22.7754
Final Score
Avg: 83.1
0
Quality
75.918
Cost
Reporting: Individual
Brand vs generic prescribing mix · Above average
Prior Parker, MD - brand share 30.0%
Ophthalmology Physician average
30% brand-name claims vs 70% generic, on 2,819 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.
2,819
Total Claims
$446K
Total Drug Cost
590
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 6,045
- Total Day Supply
- 176,626
- Brand vs Generic
- 30% brand / 70% generic
- Brand Drug Cost
- $349K
- Generic Drug Cost
- $97K
- Antibiotic Claims
- 18
Patient Demographics
- Average Patient Age
- 78.6 years
- Avg HCC Risk Score
- 1.19
- Gender Split
- 58% female / 42% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Prior Parker, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Latanoprost
Latanoprost
878 claims
- Dorzolamide-Timolol
Dorzolamide-Timolol
394 claims
- Timolol Maleate 339
Timolol Maleate
339 claims
- Prednisolone Acetate 139
Prednisolone Acetate
139 claims
- Dorzolamide Hcl 110
Dorzolamide Hcl
110 claims
- Moxifloxacin 85
Moxifloxacin
85 claims
- Restasis 81
Restasis
81 claims
- Erythromycin 71
Erythromycin
71 claims
| Drug | Claims |
|---|---|
| Latanoprost | 878 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 394 |
| Timolol Maleate | 339 |
| Prednisolone Acetate | 139 |
| Dorzolamide Hcl | 110 |
| Moxifloxacin Moxifloxacin Hcl | 85 |
| Restasis Cyclosporine | 81 |
| Erythromycin Erythromycin Base | 71 |
| Simbrinza Brinzolamide/Brimonidine Tart | 52 |
| Brimonidine Tartrate-Timolol Brimonidine Tartrate/Timolol | 50 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Ophthalmology Physician Overview
How Prior Parker, MD fits within the Ophthalmology Physician landscape nationally.
22,082
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider
Prior Parker, MD's 2,819 claims are above the specialty average of 1,420.
Nearby Ophthalmology Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Parker.
Dr. Michael Abrams
M.D.
Danbury, CT
Dr. Marcio Abreu
M.D.
Bridgeport, CT
Dr. Bruce Altman
M.D.
Danbury, CT
Dr. Laura Andrews
MD
Waterbury, CT
Shimy Apoorva
Waterbury, CT
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 Connecticut 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 Prior Parker, MD's specialty? ▼
Prior Parker, MD specializes in Ophthalmology Physician and practices in Mystic, Connecticut. Credentials: MD.
How much does Prior Parker, MD prescribe under Medicare Part D? ▼
In 2023, Prior Parker, MD wrote 2,819 Medicare Part D claims totaling $446K in drug costs for 590 beneficiaries.
What is Prior Parker, MD's Medicare quality score? ▼
Prior Parker, MD has a CMS MIPS Final Score of 22.8/100 (Quality: 0, Cost: 75.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Prior Parker, MD located? ▼
Prior Parker, MD is located at 200 SANDY HOLLOW RD, Mystic, CT, 06355. Phone: (860) 536-4916.
What is Prior Parker, MD's NPI number? ▼
Prior Parker, MD's National Provider Identifier (NPI) is 1326076795, issued on 06/28/2006.
Does Prior Parker, MD prescribe more brand-name or generic drugs? ▼
Prior Parker, MD's prescribing is 30% brand-name and 70% generic drugs by claim count, with $349K in brand drug costs.
How many Ophthalmology Physician providers are there in the US? ▼
There are 22,082 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 Prior Parker, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Prior Parker, MD's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Timolol Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Prior Parker, MD accept Medicare? ▼
Prior Parker, MD appears in CMS Medicare data with 2,819 Part D claims and 590 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Prior Parker, MD's credentials? ▼
Prior Parker, MD's NPI is 1326076795 with credentials MD. 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.