2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1427259209 M.D.
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SHAWN MCGIVNEY, M.D.

Geriatric Medicine (Internal Medicine) Physician in LAS VEGAS, Nevada. 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
358
Medicare Part D claims · 14 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: SHAWN MCGIVNEY, M.D. is a Geriatric Medicine (Internal Medicine) Physician ([object Object]) practicing in LAS VEGAS, Nevada with a Medicare Part D prescribing footprint of 358 claims across 14 beneficiaries — 14% brand-name prescribing .

What stands out: SHAWN MCGIVNEY, M.D. filed 358 Medicare Part D claims in 2023 across LAS VEGAS, Nevada. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

SHAWN MCGIVNEY, 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).

SHAWN MCGIVNEY, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 05/30/2007

NPI 1427259209

Primary specialty

Geriatric Medicine (Internal Medicine) Physician

Niche

4,161 US NPIs in this specialty

Medicare Part D claims

358 92% vs specialty avg

2023 prescription claims

Specialty avg: 4,450

Specialty distribution in Nevada

How Geriatric Medicine (Internal Medicine) Physician compares to other specialties among Nevada providers

Nevada providers

Geriatric Medicine (Internal Medicine) Physician share within Nevada

1. Geriatric Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Geriatric Medicine (Internal Medicine) Physician share within Nevada

Specialty board-certification context

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

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

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

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

SHAWN MCGIVNEY, M.D. is a Geriatric Medicine (Internal Medicine) Physician provider practicing in LAS VEGAS, Nevada, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1427259209. 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.

SHAWN MCGIVNEY, M.D. appears in the CMS NPPES registry as a Geriatric Medicine (Internal Medicine) Physician provider holding M.D. credentials at 2232 S NELLIS BLVD # G3-173, LAS VEGAS, NV, 89104, with a listed phone of (775) 828-9435. NPI 1427259209 was issued on 05/30/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MCGIVNEY 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 358 prescription claims written by this provider, covering 14 Medicare beneficiaries and totaling roughly $11K in drug spend, split 14% brand-name and 86% 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.

Geriatric Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 4,161 enrolled providers across 52 states and an average of 4,450 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

2232 S NELLIS BLVD # G3-173
LAS VEGAS, NV 89104

Provider Details

NPI 1427259209
Specialty Geriatric Medicine (Internal Medicine) Physician
Credentials M.D.
Gender Male
NPI Issued 05/30/2007

Brand vs generic prescribing mix · Typical

SHAWN MCGIVNEY, M.D. — brand share 14.0%
Specialty average (est.)

14% brand-name claims vs 86% generic, on 358 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.

358
Total Claims
$11K
Total Drug Cost
14
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
405
Total Day Supply
10,996
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$6K
Generic Drug Cost
$5K
Antibiotic Claims
35

Patient Demographics

Average Patient Age
80.5 years
Avg HCC Risk Score
1.79

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Quetiapine Fumarate
42
Levothyroxine Sodium
32
Metoprolol Succinate
25
Risperidone
24
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
22
Lisinopril
18
Carbidopa-Levodopa
Carbidopa/Levodopa
13
Venlafaxine Hcl Er
Venlafaxine Hcl
13
Glimepiride
12
Diltiazem 24hr Er
Diltiazem Hcl
11

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

Geriatric Medicine (Internal Medicine) Physician Overview

How SHAWN MCGIVNEY, M.D. fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.

4,161
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,450
Avg Claims per Provider

SHAWN MCGIVNEY, M.D.'s 358 claims are below the specialty average of 4,450.

Nearby Geriatric Medicine (Internal Medicine) Physician Providers in Nevada

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

Compare Geriatric Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is SHAWN MCGIVNEY, M.D.'s specialty?
SHAWN MCGIVNEY, M.D. specializes in Geriatric Medicine (Internal Medicine) Physician and practices in LAS VEGAS, Nevada. Credentials: M.D..
How much does SHAWN MCGIVNEY, M.D. prescribe under Medicare Part D?
In 2023, SHAWN MCGIVNEY, M.D. wrote 358 Medicare Part D claims totaling $11K in drug costs for 14 beneficiaries.
Where is SHAWN MCGIVNEY, M.D. located?
SHAWN MCGIVNEY, M.D. is located at 2232 S NELLIS BLVD # G3-173, LAS VEGAS, NV, 89104. Phone: (775) 828-9435.
What is SHAWN MCGIVNEY, M.D.'s NPI number?
SHAWN MCGIVNEY, M.D.'s National Provider Identifier (NPI) is 1427259209, issued on 05/30/2007.
Does SHAWN MCGIVNEY, M.D. prescribe more brand-name or generic drugs?
SHAWN MCGIVNEY, M.D.'s prescribing is 14% brand-name and 86% generic drugs by claim count, with $6K in brand drug costs.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US?
There are 4,161 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,450 Medicare Part D claims per year.
What drugs does SHAWN MCGIVNEY, M.D. prescribe most often?
Based on 2023 Medicare Part D data, SHAWN MCGIVNEY, M.D.'s most frequently prescribed drugs include Quetiapine Fumarate, Levothyroxine Sodium, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SHAWN MCGIVNEY, M.D. accept Medicare?
SHAWN MCGIVNEY, M.D. appears in CMS Medicare data with 358 Part D claims and 14 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SHAWN MCGIVNEY, M.D.'s credentials?
SHAWN MCGIVNEY, M.D.'s NPI is 1427259209 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