2026 NPPES data Ophthalmology Physician NPI 1326076795 MD
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PRIOR PARKER, MD

Ophthalmology Physician in MYSTIC, Connecticut. 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
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
22.7754/100
▼ 60 pts below national avg 83.1 · [object Object]

What the federal data shows

PRIOR PARKER, MD reported a CMS MIPS final score of 22.7754/100 — below the 83.1 national average — and filed 2,819 Medicare Part D claims in 2023.

22.7754/100
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

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). This entry sits in this band. 30–40: 2,746 scored providers (1%). Above this entry. 40–50: 2,928 scored providers (1%). Above this entry. 50–60: 5,882 scored providers (1%). Above this entry. 60–70: 13,906 scored providers (3%). Above this entry. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

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

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 average

NPI registry status

Active

Issued 06/28/2006

NPI 1326076795

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

2,819 99% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

22.7754/100 60.32459999999999% pts

Below average band

vs 83.1 national avg

Specialty distribution in Connecticut

How Ophthalmology Physician compares to other specialties among Connecticut providers

Connecticut providers

Ophthalmology Physician share within Connecticut

1. Ophthalmology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Ophthalmology Physician share within Connecticut

Medicare quality performance — MIPS

PRIOR PARKER, MD's 2023 MIPS final score plotted against the Ophthalmology Physician national average

Below national average
MIPS Final Score
22.7754/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Ophthalmology Physician) — 22.7754/100 vs national avg 83.1

0%100%National avg83%22.8%
MIPS final score (Ophthalmology Physician) — 22.7754/100 vs national avg 83.1

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 a 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. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PARKER 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 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. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 22.7754/100 for the 2023 performance year (Quality 0, Cost 75.918), compared with the national average of 83.1.

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

200 SANDY HOLLOW RD
MYSTIC, CT 06355

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%
Specialty average (est.)

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

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
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.

22,090
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.

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

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 22.7754/100 (Quality: 0, Cost: 75.918). 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 22,090 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 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

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