2026 NPPES data Emergency Medical Services (Emergency Medicine) Physician NPI 1821196866 MD
Verify on CMS →

BRIAN MASON, MD

Emergency Medical Services (Emergency Medicine) Physician in KENNESAW, Georgia. 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
376
Medicare Part D claims · 241 beneficiaries · Emergency Medical Services (Emergency Medicine) Physician avg: 394
What the federal data reveals: BRIAN MASON, MD is a Emergency Medical Services (Emergency Medicine) Physician ([object Object]) practicing in KENNESAW, Georgia with a Medicare Part D prescribing footprint of 376 claims across 241 beneficiaries .

What stands out: BRIAN MASON, MD filed 376 Medicare Part D claims in 2023 across KENNESAW, Georgia. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

BRIAN MASON, MD 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 MASON, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 09/21/2006

NPI 1821196866

Primary specialty

Emergency Medical Services (Emergency Medicine) Physician

Niche

3,616 US NPIs in this specialty

Medicare Part D claims

376 5% vs specialty avg

2023 prescription claims

Specialty avg: 394

Specialty distribution in Georgia

How Emergency Medical Services (Emergency Medicine) Physician compares to other specialties among Georgia providers

Georgia providers

Emergency Medical Services (Emergency Medicine) Physician share within Georgia

1. Emergency Medical Services (Emergency Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Emergency Medical Services (Emergency Medicine) Physician share within Georgia

Specialty board-certification context

Estimated specialty board-certified rate — Emergency Medical Services (Emergency Medicine) Physician (ABMS / AOA reference)

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

Est. board-certified rate (Emergency Medical Services (Emergency Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Emergency Medical Services (Emergency 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 MASON, MD is a Emergency Medical Services (Emergency Medicine) Physician provider practicing in KENNESAW, Georgia, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1821196866. 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 MASON, MD appears in the CMS NPPES registry as a Emergency Medical Services (Emergency Medicine) Physician provider holding MD credentials at 750 TOWNPARK LN NW, KENNESAW, GA, 30144, with a listed phone of (404) 365-0966. NPI 1821196866 was issued on 09/21/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MASON 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 376 prescription claims written by this provider, covering 241 Medicare beneficiaries and totaling roughly $6K in drug spend, with an opioid prescribing rate of 19.9%. 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.

Emergency Medical Services (Emergency Medicine) Physician is a narrow specialty nationwide, with 3,616 enrolled providers across 55 states and an average of 394 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

750 TOWNPARK LN NW
KENNESAW, GA 30144

Provider Details

NPI 1821196866
Specialty Emergency Medical Services (Emergency Medicine) Physician
Credentials MD
Gender Male
NPI Issued 09/21/2006

Hospital and facility affiliations

Facilities where BRIAN MASON, 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.

THE SOUTHEAST PERMANENTE MEDICAL GROUP
ATLANTA, GA

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.

376
Total Claims
$6K
Total Drug Cost
241
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
394
Total Day Supply
4,399
Generic Drug Cost
$3K
Opioid Claims
75 (19.9% rate)
Antibiotic Claims
120

Patient Demographics

Average Patient Age
73.7 years
Avg HCC Risk Score
1.42
Gender Split
57% female / 43% male
Age Distribution
<65: 12, 65-74: 129, 75-84: 75, 85+: 25

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Tramadol Hcl
63
Albuterol Sulfate Hfa
Albuterol Sulfate
26
Ondansetron Odt
Ondansetron
22
Prednisone
21
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
19
Azithromycin
19
Methylprednisolone
19
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
19
Cephalexin
14
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
14

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

Emergency Medical Services (Emergency Medicine) Physician Overview

How BRIAN MASON, MD fits within the Emergency Medical Services (Emergency Medicine) Physician landscape nationally.

3,616
Emergency Medical Services (Emergency Medicine) Physician Providers in US
55
States with Emergency Medical Services (Emergency Medicine) Physician
394
Avg Claims per Provider

BRIAN MASON, MD's 376 claims are below the specialty average of 394.

Nearby Emergency Medical Services (Emergency Medicine) Physician Providers in Georgia

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

Compare Emergency Medical Services (Emergency Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is BRIAN MASON, MD's specialty?
BRIAN MASON, MD specializes in Emergency Medical Services (Emergency Medicine) Physician and practices in KENNESAW, Georgia. Credentials: MD.
How much does BRIAN MASON, MD prescribe under Medicare Part D?
In 2023, BRIAN MASON, MD wrote 376 Medicare Part D claims totaling $6K in drug costs for 241 beneficiaries.
Where is BRIAN MASON, MD located?
BRIAN MASON, MD is located at 750 TOWNPARK LN NW, KENNESAW, GA, 30144. Phone: (404) 365-0966.
What is BRIAN MASON, MD's NPI number?
BRIAN MASON, MD's National Provider Identifier (NPI) is 1821196866, issued on 09/21/2006.
Does BRIAN MASON, MD prescribe opioids?
Yes, BRIAN MASON, MD had 75 opioid claims in 2023 with an opioid prescribing rate of 19.9%.
How many Emergency Medical Services (Emergency Medicine) Physician providers are there in the US?
There are 3,616 Emergency Medical Services (Emergency Medicine) Physician providers across 55 states in the US. The average Emergency Medical Services (Emergency Medicine) Physician provider writes 394 Medicare Part D claims per year.
What drugs does BRIAN MASON, MD prescribe most often?
Based on 2023 Medicare Part D data, BRIAN MASON, MD's most frequently prescribed drugs include Tramadol Hcl, Albuterol Sulfate Hfa, Ondansetron Odt. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BRIAN MASON, MD accept Medicare?
BRIAN MASON, MD appears in CMS Medicare data with 376 Part D claims and 241 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BRIAN MASON, MD's credentials?
BRIAN MASON, MD's NPI is 1821196866 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.
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