2026 NPPES data Emergency Medicine Physician NPI 1558361980 M.D.
Verify on CMS →

GERALD APOLLON, M.D.

Emergency Medicine Physician in WESTMINSTER, Maryland. 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
207
Medicare Part D claims · 143 beneficiaries · Emergency Medicine Physician avg: 352
MIPS score
28.4657/100
▼ 55 pts below national avg 83.1 · [object Object]

What the federal data shows

GERALD APOLLON, M.D. reported a CMS MIPS final score of 28.4657/100 — below the 83.1 national average — and filed 207 Medicare Part D claims in 2023.

28.4657/100
MIPS score · -55 vs avg
207
Part D claims, 2023
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.

GERALD APOLLON, M.D.'s MIPS score vs every scored U.S. clinician

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

28 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)

GERALD APOLLON, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations — 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 GERALD APOLLON, M.D.?

Below national average

NPI registry status

Active

Issued 07/28/2005

NPI 1558361980

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

207 41% vs specialty avg

2023 prescription claims

Specialty avg: 352

MIPS final score

28.4657/100 54.634299999999996% pts

Below average band

vs 83.1 national avg

Specialty distribution in Maryland

How Emergency Medicine Physician compares to other specialties among Maryland providers

Maryland providers

Emergency Medicine Physician share within Maryland

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

Medicare quality performance — MIPS

GERALD APOLLON, M.D.'s 2023 MIPS final score plotted against the Emergency Medicine Physician national average

Below national average
MIPS Final Score
28.4657/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Emergency Medicine Physician) — 28.4657/100 vs national avg 83.1

0%100%National avg83%28.5%
MIPS final score (Emergency Medicine Physician) — 28.4657/100 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).

GERALD APOLLON, M.D. is a Emergency Medicine Physician provider practicing in WESTMINSTER, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1558361980. 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.

GERALD APOLLON, M.D. appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding M.D. credentials at 826 WASHINGTON RD, WESTMINSTER, MD, 21157, with a listed phone of (410) 751-7480. NPI 1558361980 was issued on 07/28/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what APOLLON 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 207 prescription claims written by this provider, covering 143 Medicare beneficiaries and totaling roughly $3K in drug spend. 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 28.4657/100 for the 2023 performance year (Quality 0, Cost 94.8858), 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

826 WASHINGTON RD
WESTMINSTER, MD 21157

Provider Details

NPI 1558361980
Specialty Emergency Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 07/28/2005

CMS Quality Score (MIPS)

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

28.4657
Final Score
Avg: 83.1
0
Quality
94.8858
Cost
0
Promoting Interoperability

Reporting: Individual

Hospital and facility affiliations

Facilities where GERALD APOLLON, M.D. 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.

MY PRIMARY CARE
WESTMINSTER, MD
U N I MEDICAL CARE INC
HAGERSTOWN, MD

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

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

207
Total Claims
$3K
Total Drug Cost
143
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
209
Total Day Supply
2,088
Generic Drug Cost
$2K
Antibiotic Claims
99

Patient Demographics

Average Patient Age
68.0 years
Avg HCC Risk Score
0.99
Gender Split
66% female / 34% male
Age Distribution
<65: 34, 65-74: 58, 75-84: 39, 85+: 12

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Prednisone
25
Azithromycin
21
Cefdinir
17
Hydrocortisone
16
Clindamycin Hcl
14
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
11

* 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 GERALD APOLLON, M.D. 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

GERALD APOLLON, M.D.'s 207 claims are below the specialty average of 352.

Nearby Emergency Medicine Physician Providers in Maryland

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

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

Frequently Asked Questions

What is GERALD APOLLON, M.D.'s specialty?
GERALD APOLLON, M.D. specializes in Emergency Medicine Physician and practices in WESTMINSTER, Maryland. Credentials: M.D..
How much does GERALD APOLLON, M.D. prescribe under Medicare Part D?
In 2023, GERALD APOLLON, M.D. wrote 207 Medicare Part D claims totaling $3K in drug costs for 143 beneficiaries.
What is GERALD APOLLON, M.D.'s Medicare quality score?
GERALD APOLLON, M.D. has a CMS MIPS Final Score of 28.4657/100 (Quality: 0, Cost: 94.8858). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is GERALD APOLLON, M.D. located?
GERALD APOLLON, M.D. is located at 826 WASHINGTON RD, WESTMINSTER, MD, 21157. Phone: (410) 751-7480.
What is GERALD APOLLON, M.D.'s NPI number?
GERALD APOLLON, M.D.'s National Provider Identifier (NPI) is 1558361980, issued on 07/28/2005.
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 GERALD APOLLON, M.D. prescribe most often?
Based on 2023 Medicare Part D data, GERALD APOLLON, M.D.'s most frequently prescribed drugs include Prednisone, Azithromycin, Cefdinir. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GERALD APOLLON, M.D. accept Medicare?
GERALD APOLLON, M.D. appears in CMS Medicare data with 207 Part D claims and 143 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GERALD APOLLON, M.D.'s credentials?
GERALD APOLLON, M.D.'s NPI is 1558361980 with credentials M.D.. 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