2026 NPPES data Emergency Medicine Physician NPI 1558504837 MD
Verify on CMS →

ROBERT DAY, MD

Emergency Medicine Physician in WESTERVILLE, Ohio. 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
323
Medicare Part D claims · 204 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
81.4298/100
▼ 2 pts below national avg 83.1 · [object Object]
Industry payments
$13.33
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ROBERT DAY, MD reported a CMS MIPS final score of 81.4298/100 — below the 83.1 national average — and filed 323 Medicare Part D claims in 2023.

81.4298/100
MIPS score · -2 vs avg
323
Part D claims, 2023
88%
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.

ROBERT DAY, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

81 36th percentile higher than 36% 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%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 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)

ROBERT DAY, 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 ROBERT DAY, MD?

Near national average

NPI registry status

Active

Issued 04/15/2009

NPI 1558504837

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

323 8% vs specialty avg

2023 prescription claims

Specialty avg: 352

MIPS final score

81.4298/100 1.6701999999999941% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Ohio

How Emergency Medicine Physician compares to other specialties among Ohio providers

Ohio providers

Emergency Medicine Physician share within Ohio

1. Emergency Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Emergency Medicine Physician share within Ohio

Medicare quality performance — MIPS

ROBERT DAY, MD's 2023 MIPS final score plotted against the Emergency Medicine Physician national average

Near national average
MIPS Final Score
81.4298/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Emergency Medicine Physician) — 81.4298/100 vs national avg 83.1

0%100%National avg83%81.4%
MIPS final score (Emergency Medicine Physician) — 81.4298/100 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).

ROBERT DAY, MD appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding MD credentials at 932 VALLEYVIEW DR, WESTERVILLE, OH, 43081, with a listed phone of (440) 570-2029. NPI 1558504837 was issued on 04/15/2009. 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 323 prescription claims written by this provider, covering 204 Medicare beneficiaries and totaling roughly $12K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 11.8%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 81.4298/100 for the 2023 performance year (Quality 69.2848, Cost 57.964), compared with the national average of 83.1.

Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 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

932 VALLEYVIEW DR
WESTERVILLE, OH 43081

Provider Details

NPI 1558504837
Specialty Emergency Medicine Physician
Credentials MD
Gender Male
NPI Issued 04/15/2009

CMS Quality Score (MIPS)

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

81.4298
Final Score
Avg: 83.1
69.2848
Quality
57.964
Cost
100
Promoting Interoperability

Reporting: Group practice

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for ROBERT DAY, MD. Source: openpaymentsdata.cms.gov.

Total received

$13

Largest payer

E.R. Squibb & Sons, L.L.C.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — Ohio OMB 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 ~48K Ohio medical licensees in 2023 — they are NOT specific to ROBERT DAY, MD. To verify ROBERT DAY, MD's current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases

OMB 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 Ohio disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

ROBERT DAY, MD — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 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.

323
Total Claims
$12K
Total Drug Cost
204
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
333
Total Day Supply
3,511
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$9K
Generic Drug Cost
$3K
Opioid Claims
38 (11.8% rate)
Antibiotic Claims
77

Patient Demographics

Average Patient Age
67.6 years
Avg HCC Risk Score
1.99
Gender Split
59% female / 41% male
Age Distribution
<65: 64, 65-74: 76, 75-84: 50, 85+: 14

Top Prescribed Drugs (Medicare Part D)

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

What ROBERT DAY, 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
Prednisone
56
Morphine Sulfate
23
Ondansetron Odt
Ondansetron
17
Cefdinir
16
Levofloxacin
15
Promethazine Hcl
12

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

Emergency Medicine Physician Overview

How ROBERT DAY, MD fits within the Emergency Medicine Physician landscape nationally.

64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

ROBERT DAY, MD's 323 claims are below the specialty average of 352.

Nearby Emergency Medicine Physician Providers in Ohio

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

Compare Emergency Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ROBERT DAY, MD's specialty?
ROBERT DAY, MD specializes in Emergency Medicine Physician and practices in WESTERVILLE, Ohio. Credentials: MD.
How much does ROBERT DAY, MD prescribe under Medicare Part D?
In 2023, ROBERT DAY, MD wrote 323 Medicare Part D claims totaling $12K in drug costs for 204 beneficiaries.
What is ROBERT DAY, MD's Medicare quality score?
ROBERT DAY, MD has a CMS MIPS Final Score of 81.4298/100 (Quality: 69.2848, Cost: 57.964). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ROBERT DAY, MD located?
ROBERT DAY, MD is located at 932 VALLEYVIEW DR, WESTERVILLE, OH, 43081. Phone: (440) 570-2029.
What is ROBERT DAY, MD's NPI number?
ROBERT DAY, MD's National Provider Identifier (NPI) is 1558504837, issued on 04/15/2009.
Does ROBERT DAY, MD prescribe more brand-name or generic drugs?
ROBERT DAY, MD's prescribing is 12% brand-name and 88% generic drugs by claim count, with $9K in brand drug costs.
Does ROBERT DAY, MD prescribe opioids?
Yes, ROBERT DAY, MD had 38 opioid claims in 2023 with an opioid prescribing rate of 11.8%.
How many Emergency Medicine Physician providers are there in the US?
There are 64,398 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does ROBERT DAY, MD prescribe most often?
Based on 2023 Medicare Part D data, ROBERT DAY, MD's most frequently prescribed drugs include Prednisone, Morphine Sulfate, Ondansetron Odt. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ROBERT DAY, MD accept Medicare?
ROBERT DAY, MD appears in CMS Medicare data with 323 Part D claims and 204 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ROBERT DAY, MD's credentials?
ROBERT DAY, MD's NPI is 1558504837 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