2026 NPPES data Emergency Medicine Physician NPI 1144857632
Verify on CMS →

FRANK MAYER

Emergency Medicine Physician in DOVER, Delaware. 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
135
Medicare Part D claims · 99 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
98.0348/100
▲ 15 pts above national avg 83.1 · [object Object]

What the federal data shows

FRANK MAYER reported a CMS MIPS final score of 98.0348/100 — above the 83.1 national average — and filed 135 Medicare Part D claims in 2023.

98.0348/100
MIPS score · +15 vs avg
135
Part D claims, 2023
92%
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.

FRANK MAYER's MIPS score vs every scored U.S. clinician

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

98 Top 11% higher than 89% 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%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. 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)

FRANK MAYER 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).

What does the federal data show about FRANK MAYER?

High performer (top quartile)

NPI registry status

Active

Issued 03/24/2020

NPI 1144857632

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

135 62% vs specialty avg

2023 prescription claims

Specialty avg: 352

MIPS final score

98.0348/100 14.93480000000001% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Delaware

How Emergency Medicine Physician compares to other specialties among Delaware providers

Delaware providers

Emergency Medicine Physician share within Delaware

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

Medicare quality performance — MIPS

FRANK MAYER's 2023 MIPS final score plotted against the Emergency Medicine Physician national average

High performer (top quartile)
MIPS Final Score
98.0348/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Emergency Medicine Physician) — 98.0348/100 vs national avg 83.1

0%100%National avg83%98%
MIPS final score (Emergency Medicine Physician) — 98.0348/100 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).

FRANK MAYER appears in the CMS NPPES registry as a Emergency Medicine Physician provider at 640 S STATE ST, DOVER, DE, 19901, with a listed phone of (302) 674-4700. NPI 1144857632 was issued on 03/24/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MAYER 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 135 prescription claims written by this provider, covering 99 Medicare beneficiaries and totaling roughly $4K in drug spend, split 8% brand-name and 92% generic by claim count, with an opioid prescribing rate of 12.6%. 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 98.0348/100 for the 2023 performance year (Quality 88.5219), 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

640 S STATE ST
DOVER, DE 19901

Provider Details

NPI 1144857632
Specialty Emergency Medicine Physician
Gender Male
NPI Issued 03/24/2020

CMS Quality Score (MIPS)

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

98.0348
Final Score
Avg: 83.1
88.5219
Quality
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where FRANK MAYER 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.

BAYHEALTH EMERGENCY PHYSICIANS LLC
DOVER, DE

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Generic-heavy

FRANK MAYER — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 135 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.

135
Total Claims
$4K
Total Drug Cost
99
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
137
Total Day Supply
1,237
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$2K
Generic Drug Cost
$2K
Opioid Claims
17 (12.6% rate)
Antibiotic Claims
56

Patient Demographics

Average Patient Age
73.8 years
Avg HCC Risk Score
2.02
Gender Split
68% female / 32% male
Age Distribution
<65: 18, 65-74: 34, 75-84: 28, 85+: 19

Top Prescribed Drugs (Medicare Part D)

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

What FRANK MAYER 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
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
14
Cefpodoxime Proxetil
12
Prednisone
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 FRANK MAYER 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

FRANK MAYER's 135 claims are below the specialty average of 352.

Nearby Emergency Medicine Physician Providers in Delaware

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

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

Frequently Asked Questions

What is FRANK MAYER's specialty?
FRANK MAYER specializes in Emergency Medicine Physician and practices in DOVER, Delaware.
How much does FRANK MAYER prescribe under Medicare Part D?
In 2023, FRANK MAYER wrote 135 Medicare Part D claims totaling $4K in drug costs for 99 beneficiaries.
What is FRANK MAYER's Medicare quality score?
FRANK MAYER has a CMS MIPS Final Score of 98.0348/100 (Quality: 88.5219). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is FRANK MAYER located?
FRANK MAYER is located at 640 S STATE ST, DOVER, DE, 19901. Phone: (302) 674-4700.
What is FRANK MAYER's NPI number?
FRANK MAYER's National Provider Identifier (NPI) is 1144857632, issued on 03/24/2020.
Does FRANK MAYER prescribe more brand-name or generic drugs?
FRANK MAYER's prescribing is 8% brand-name and 92% generic drugs by claim count, with $2K in brand drug costs.
Does FRANK MAYER prescribe opioids?
Yes, FRANK MAYER had 17 opioid claims in 2023 with an opioid prescribing rate of 12.6%.
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 FRANK MAYER prescribe most often?
Based on 2023 Medicare Part D data, FRANK MAYER's most frequently prescribed drugs include Amoxicillin-Clavulanate Potass, Cefpodoxime Proxetil, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does FRANK MAYER accept Medicare?
FRANK MAYER appears in CMS Medicare data with 135 Part D claims and 99 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify FRANK MAYER's credentials?
FRANK MAYER's NPI is 1144857632. 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