2026 NPPES data Vascular Surgery Physician NPI 1184729998 MD
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LESLAW GREDYSA, MD

Vascular Surgery Physician in RIVERHEAD, New York. 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
123
Medicare Part D claims · 68 beneficiaries · Vascular Surgery Physician avg: 205
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
91.2532/100
▲ 8 pts above national avg 83.1 · [object Object]
What the federal data reveals: LESLAW GREDYSA, MD is a Vascular Surgery Physician ([object Object]) practicing in RIVERHEAD, New York with a Medicare Part D prescribing footprint of 123 claims across 68 beneficiaries — 18% brand-name prescribing . Their CMS MIPS Final Score of 91.2532/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: LESLAW GREDYSA, MD reported a CMS MIPS final score of 91.2532 out of 100, above the 83.1 national average, and filed 123 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

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

LESLAW GREDYSA, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 09/14/2006

NPI 1184729998

Primary specialty

Vascular Surgery Physician

Niche

4,215 US NPIs in this specialty

Medicare Part D claims

123 40% vs specialty avg

2023 prescription claims

Specialty avg: 205

MIPS final score

91.2532/100 8.153200000000012% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in New York

How Vascular Surgery Physician compares to other specialties among New York providers

New York providers

Vascular Surgery Physician share within New York

1. Vascular Surgery Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Vascular Surgery Physician share within New York

Medicare quality performance — MIPS

LESLAW GREDYSA, MD's 2023 MIPS final score plotted against the Vascular Surgery Physician national average

High performer (top quartile)
MIPS Final Score
91.2532/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Vascular Surgery Physician) — 91.2532/100 vs national avg 83.1

0%100%National avg83%91.3%
MIPS final score (Vascular Surgery Physician) — 91.2532/100 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).

LESLAW GREDYSA, MD is a Vascular Surgery Physician provider practicing in RIVERHEAD, New York, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1184729998. 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.

LESLAW GREDYSA, MD appears in the CMS NPPES registry as a Vascular Surgery Physician provider holding MD credentials at 31 MAIN RD, RIVERHEAD, NY, 11901, with a listed phone of (631) 369-8539. NPI 1184729998 was issued on 09/14/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GREDYSA 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 123 prescription claims written by this provider, covering 68 Medicare beneficiaries and totaling roughly $13K in drug spend, split 18% brand-name and 82% generic by claim count, with an opioid prescribing rate of 15.4%. 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 91.2532/100 for the 2023 performance year (Quality 74.9203), compared with the national average of 83.1.

Vascular Surgery Physician is a narrow specialty nationwide, with 4,215 enrolled providers across 53 states and an average of 205 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

31 MAIN RD
RIVERHEAD, NY 11901

Provider Details

NPI 1184729998
Specialty Vascular Surgery Physician
Credentials MD
Gender Male
NPI Issued 09/14/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

91.2532
Final Score
Avg: 83.1
74.9203
Quality
91.6794
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where LESLAW GREDYSA, MD 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.

NORTH SHORE-LIJ MEDICAL PC
RIVERHEAD, 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 LESLAW GREDYSA, MD. To verify LESLAW GREDYSA, MD'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 · Typical

LESLAW GREDYSA, MD — brand share 18.0%
Specialty average (est.)

18% brand-name claims vs 82% generic, on 123 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.

123
Total Claims
$13K
Total Drug Cost
68
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
253
Total Day Supply
6,795
Brand vs Generic
18% brand / 82% generic
Brand Drug Cost
$11K
Generic Drug Cost
$1K
Opioid Claims
19 (15.4% rate)
Antibiotic Claims
12

Patient Demographics

Average Patient Age
76.7 years
Avg HCC Risk Score
1.41
Gender Split
49% female / 51% 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
Clopidogrel
Clopidogrel Bisulfate
35
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
19
Eliquis
Apixaban
14
Furosemide
14
Cilostazol
12

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Vascular Surgery Physician Overview

How LESLAW GREDYSA, MD fits within the Vascular Surgery Physician landscape nationally.

4,215
Vascular Surgery Physician Providers in US
53
States with Vascular Surgery Physician
205
Avg Claims per Provider

LESLAW GREDYSA, MD's 123 claims are below the specialty average of 205.

Nearby Vascular 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 GREDYSA.

Compare Vascular Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is LESLAW GREDYSA, MD's specialty?
LESLAW GREDYSA, MD specializes in Vascular Surgery Physician and practices in RIVERHEAD, New York. Credentials: MD.
How much does LESLAW GREDYSA, MD prescribe under Medicare Part D?
In 2023, LESLAW GREDYSA, MD wrote 123 Medicare Part D claims totaling $13K in drug costs for 68 beneficiaries.
What is LESLAW GREDYSA, MD's Medicare quality score?
LESLAW GREDYSA, MD has a CMS MIPS Final Score of 91.2532/100 (Quality: 74.9203). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is LESLAW GREDYSA, MD located?
LESLAW GREDYSA, MD is located at 31 MAIN RD, RIVERHEAD, NY, 11901. Phone: (631) 369-8539.
What is LESLAW GREDYSA, MD's NPI number?
LESLAW GREDYSA, MD's National Provider Identifier (NPI) is 1184729998, issued on 09/14/2006.
Does LESLAW GREDYSA, MD prescribe more brand-name or generic drugs?
LESLAW GREDYSA, MD's prescribing is 18% brand-name and 82% generic drugs by claim count, with $11K in brand drug costs.
Does LESLAW GREDYSA, MD prescribe opioids?
Yes, LESLAW GREDYSA, MD had 19 opioid claims in 2023 with an opioid prescribing rate of 15.4%.
How many Vascular Surgery Physician providers are there in the US?
There are 4,215 Vascular Surgery Physician providers across 53 states in the US. The average Vascular Surgery Physician provider writes 205 Medicare Part D claims per year.
What drugs does LESLAW GREDYSA, MD prescribe most often?
Based on 2023 Medicare Part D data, LESLAW GREDYSA, MD's most frequently prescribed drugs include Clopidogrel, Oxycodone-Acetaminophen, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LESLAW GREDYSA, MD accept Medicare?
LESLAW GREDYSA, MD appears in CMS Medicare data with 123 Part D claims and 68 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LESLAW GREDYSA, MD's credentials?
LESLAW GREDYSA, MD's NPI is 1184729998 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