2026 NPPES data Emergency Medicine Physician NPI 1154321594 M.D.
Verify on CMS →

CASEY LOCARNINI, M.D.

Emergency Medicine Physician in DUNWOODY, 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
302
Medicare Part D claims · 199 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

CASEY LOCARNINI, M.D. filed 302 Medicare Part D claims in 2023 as a Emergency Medicine Physician in DUNWOODY, Georgia, prescribing 93% generic.

302
Part D claims, 2023
93%
generic prescribing

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.

CASEY LOCARNINI, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

302 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

CASEY LOCARNINI, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about CASEY LOCARNINI, M.D.?

Quality data not reported

NPI registry status

Active

Issued 07/28/2005

NPI 1154321594

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

302 14% vs specialty avg

2023 prescription claims

Specialty avg: 352

Specialty distribution in Georgia

How Emergency Medicine Physician compares to other specialties among Georgia providers

Georgia providers

Emergency Medicine Physician share within Georgia

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (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).

CASEY LOCARNINI, M.D. appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding M.D. credentials at 1730 MOUNT VERNON RD STE B, DUNWOODY, GA, 30338, with a listed phone of (770) 353-2001. NPI 1154321594 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 LOCARNINI 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 302 prescription claims written by this provider, covering 199 Medicare beneficiaries and totaling roughly $5K in drug spend, split 7% brand-name and 93% generic by claim count. 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 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

1730 MOUNT VERNON RD STE B
DUNWOODY, GA 30338

Provider Details

NPI 1154321594
Specialty Emergency Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 07/28/2005

Brand vs generic prescribing mix · Generic-heavy

CASEY LOCARNINI, M.D. — brand share 7.0%
Specialty average (est.)

7% brand-name claims vs 93% generic, on 302 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.

302
Total Claims
$5K
Total Drug Cost
199
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
306
Total Day Supply
3,245
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$2K
Generic Drug Cost
$3K
Antibiotic Claims
143

Patient Demographics

Average Patient Age
76.6 years
Avg HCC Risk Score
0.85
Gender Split
69% female / 31% male

Top Prescribed Drugs (Medicare Part D)

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

What CASEY LOCARNINI, M.D. 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
Doxycycline Hyclate
53
Methylprednisolone
31
Amoxicillin
23
Azithromycin
19
Albuterol Sulfate Hfa
Albuterol Sulfate
16
Triamcinolone Acetonide
14
Cefdinir
11
Cephalexin
11
Moxifloxacin
Moxifloxacin Hcl
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 CASEY LOCARNINI, 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

CASEY LOCARNINI, M.D.'s 302 claims are below the specialty average of 352.

Nearby Emergency Medicine Physician Providers in Georgia

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

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

Frequently Asked Questions

What is CASEY LOCARNINI, M.D.'s specialty?
CASEY LOCARNINI, M.D. specializes in Emergency Medicine Physician and practices in DUNWOODY, Georgia. Credentials: M.D..
How much does CASEY LOCARNINI, M.D. prescribe under Medicare Part D?
In 2023, CASEY LOCARNINI, M.D. wrote 302 Medicare Part D claims totaling $5K in drug costs for 199 beneficiaries.
Where is CASEY LOCARNINI, M.D. located?
CASEY LOCARNINI, M.D. is located at 1730 MOUNT VERNON RD STE B, DUNWOODY, GA, 30338. Phone: (770) 353-2001.
What is CASEY LOCARNINI, M.D.'s NPI number?
CASEY LOCARNINI, M.D.'s National Provider Identifier (NPI) is 1154321594, issued on 07/28/2005.
Does CASEY LOCARNINI, M.D. prescribe more brand-name or generic drugs?
CASEY LOCARNINI, M.D.'s prescribing is 7% brand-name and 93% generic drugs by claim count, with $2K in brand drug costs.
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 CASEY LOCARNINI, M.D. prescribe most often?
Based on 2023 Medicare Part D data, CASEY LOCARNINI, M.D.'s most frequently prescribed drugs include Doxycycline Hyclate, Methylprednisolone, Amoxicillin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CASEY LOCARNINI, M.D. accept Medicare?
CASEY LOCARNINI, M.D. appears in CMS Medicare data with 302 Part D claims and 199 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CASEY LOCARNINI, M.D.'s credentials?
CASEY LOCARNINI, M.D.'s NPI is 1154321594 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.
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