2026 NPPES data Geriatric Medicine (Family Medicine) Physician NPI 1457580532 D.O.
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BRIAN DAY, D.O.

Geriatric Medicine (Family Medicine) Physician in ROCHESTER, 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
2K
Medicare Part D claims · 146 beneficiaries · Geriatric Medicine (Family Medicine) Physician avg: 5K
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: BRIAN DAY, D.O. is a Geriatric Medicine (Family Medicine) Physician ([object Object]) practicing in ROCHESTER, New York with a Medicare Part D prescribing footprint of 2K claims across 146 beneficiaries — 15% brand-name prescribing .

What stands out: BRIAN DAY, D.O. filed 2,323 Medicare Part D claims in 2023 across ROCHESTER, New York. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

BRIAN DAY, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

BRIAN DAY, D.O. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/09/2009

NPI 1457580532

Primary specialty

Geriatric Medicine (Family Medicine) Physician

Niche

1,779 US NPIs in this specialty

Medicare Part D claims

2,323 52% vs specialty avg

2023 prescription claims

Specialty avg: 4,854

Specialty distribution in New York

How Geriatric Medicine (Family Medicine) Physician compares to other specialties among New York providers

New York providers

Geriatric Medicine (Family Medicine) Physician share within New York

1. Geriatric Medicine (Family Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Geriatric Medicine (Family Medicine) Physician share within New York

Specialty board-certification context

Estimated specialty board-certified rate — Geriatric Medicine (Family Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Geriatric Medicine (Family Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Geriatric Medicine (Family Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Geriatric Medicine (Family Medicine) Physician) — ABMS / AOA estimate

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).

BRIAN DAY, D.O. is a Geriatric Medicine (Family Medicine) Physician provider practicing in ROCHESTER, New York, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.O.. NPI: 1457580532. 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.

BRIAN DAY, D.O. appears in the CMS NPPES registry as a Geriatric Medicine (Family Medicine) Physician provider holding D.O. credentials at 2350 RIDGEWAY AVE STE A, ROCHESTER, NY, 14626, with a listed phone of (585) 922-2440. NPI 1457580532 was issued on 07/09/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DAY 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 2,323 prescription claims written by this provider, covering 146 Medicare beneficiaries and totaling roughly $137K in drug spend, split 15% brand-name and 85% generic by claim count, with an opioid prescribing rate of 6.8%. 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.

Geriatric Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 1,779 enrolled providers across 52 states and an average of 4,854 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

2350 RIDGEWAY AVE STE A
ROCHESTER, NY 14626

Provider Details

NPI 1457580532
Specialty Geriatric Medicine (Family Medicine) Physician
Credentials D.O.
Gender Male
NPI Issued 07/09/2009

Hospital and facility affiliations

Facilities where BRIAN DAY, D.O. 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.

ST ANNS HOME FOR THE AGED
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 BRIAN DAY, D.O.. To verify BRIAN DAY, D.O.'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

BRIAN DAY, D.O. — brand share 15.0%
Specialty average (est.)

15% brand-name claims vs 85% generic, on 2,323 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.

2,323
Total Claims
$137K
Total Drug Cost
146
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,330
Total Day Supply
50,836
Brand vs Generic
15% brand / 85% generic
Brand Drug Cost
$103K
Generic Drug Cost
$33K
Opioid Claims
158 (6.8% rate)
Antibiotic Claims
52

Patient Demographics

Average Patient Age
86.2 years
Avg HCC Risk Score
2.17
Gender Split
71% female / 29% male
Age Distribution
<65: 0, 65-74: 13, 75-84: 45, 85+: 88

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Levothyroxine Sodium
111
Eliquis
Apixaban
109
Pantoprazole Sodium
104
Atorvastatin Calcium
98
Omeprazole
92
Gabapentin
85
Metoprolol Succinate
85
Amlodipine Besylate
66
Lisinopril
66
Mirtazapine
65

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

Geriatric Medicine (Family Medicine) Physician Overview

How BRIAN DAY, D.O. fits within the Geriatric Medicine (Family Medicine) Physician landscape nationally.

1,779
Geriatric Medicine (Family Medicine) Physician Providers in US
52
States with Geriatric Medicine (Family Medicine) Physician
4,854
Avg Claims per Provider

BRIAN DAY, D.O.'s 2,323 claims are below the specialty average of 4,854.

Nearby Geriatric Medicine (Family Medicine) Physician Providers in New York

Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as DAY.

Compare Geriatric Medicine (Family Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is BRIAN DAY, D.O.'s specialty?
BRIAN DAY, D.O. specializes in Geriatric Medicine (Family Medicine) Physician and practices in ROCHESTER, New York. Credentials: D.O..
How much does BRIAN DAY, D.O. prescribe under Medicare Part D?
In 2023, BRIAN DAY, D.O. wrote 2,323 Medicare Part D claims totaling $137K in drug costs for 146 beneficiaries.
Where is BRIAN DAY, D.O. located?
BRIAN DAY, D.O. is located at 2350 RIDGEWAY AVE STE A, ROCHESTER, NY, 14626. Phone: (585) 922-2440.
What is BRIAN DAY, D.O.'s NPI number?
BRIAN DAY, D.O.'s National Provider Identifier (NPI) is 1457580532, issued on 07/09/2009.
Does BRIAN DAY, D.O. prescribe more brand-name or generic drugs?
BRIAN DAY, D.O.'s prescribing is 15% brand-name and 85% generic drugs by claim count, with $103K in brand drug costs.
Does BRIAN DAY, D.O. prescribe opioids?
Yes, BRIAN DAY, D.O. had 158 opioid claims in 2023 with an opioid prescribing rate of 6.8%.
How many Geriatric Medicine (Family Medicine) Physician providers are there in the US?
There are 1,779 Geriatric Medicine (Family Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Family Medicine) Physician provider writes 4,854 Medicare Part D claims per year.
What drugs does BRIAN DAY, D.O. prescribe most often?
Based on 2023 Medicare Part D data, BRIAN DAY, D.O.'s most frequently prescribed drugs include Levothyroxine Sodium, Eliquis, Pantoprazole Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BRIAN DAY, D.O. accept Medicare?
BRIAN DAY, D.O. appears in CMS Medicare data with 2,323 Part D claims and 146 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BRIAN DAY, D.O.'s credentials?
BRIAN DAY, D.O.'s NPI is 1457580532 with credentials D.O.. 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.
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