2026 NPPES data Family Nurse Practitioner NPI 1174261374 DNP, FNP-BC, CRNP
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MARY MCMAHON, DNP, FNP-BC, CRNP

Family Nurse Practitioner in LATROBE, Pennsylvania. 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
3K
Medicare Part D claims · 578 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

MARY MCMAHON, DNP, FNP-BC, CRNP filed 2,858 Medicare Part D claims in 2023 as a Family Nurse Practitioner in LATROBE, Pennsylvania, prescribing 90% generic.

3K
Part D claims, 2023
90%
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.

MARY MCMAHON, DNP, FNP-BC, CRNP's Medicare Part D volume vs every U.S. prescriber

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

2,858 Top 12% higher than 88% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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

What does the federal data show about MARY MCMAHON, DNP, FNP-BC, CRNP?

Quality data not reported

NPI registry status

Active

Issued 05/26/2022

NPI 1174261374

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

2,858 134% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in Pennsylvania

How Family Nurse Practitioner compares to other specialties among Pennsylvania providers

Pennsylvania providers

Family Nurse Practitioner share within Pennsylvania

1. Family Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Nurse Practitioner share within Pennsylvania

Specialty board-certification context

Estimated specialty board-certified rate — Family Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Family Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Family Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Family Nurse Practitioner) — 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).

MARY MCMAHON, DNP, FNP-BC, CRNP appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding DNP, FNP-BC, CRNP credentials at 555 PA-217, LATROBE, PA, 15650, with a listed phone of (724) 694-2723. NPI 1174261374 was issued on 05/26/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MCMAHON 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 2,858 prescription claims written by this provider, covering 578 Medicare beneficiaries and totaling roughly $194K in drug spend, split 10% brand-name and 90% generic by claim count, with an opioid prescribing rate of 0.7%. 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.

Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 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

555 PA-217
LATROBE, PA 15650

Provider Details

NPI 1174261374
Specialty Family Nurse Practitioner
Credentials DNP, FNP-BC, CRNP
Gender Female
NPI Issued 05/26/2022

Hospital and facility affiliations

Facilities where MARY MCMAHON, DNP, FNP-BC, CRNP 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.

EXCELA HEALTH PHYSICIAN PRACTICES, INC
LATROBE, PA

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

License & disciplinary context — Pennsylvania PA-BOM 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~45K Pennsylvania medical licensees in 2023 — they are NOT specific to MARY MCMAHON, DNP, FNP-BC, CRNP. To verify MARY MCMAHON, DNP, FNP-BC, CRNP's current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases

PA-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

MARY MCMAHON, DNP, FNP-BC, CRNP — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 2,858 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.

2,858
Total Claims
$194K
Total Drug Cost
578
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,994
Total Day Supply
134,101
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$148K
Generic Drug Cost
$45K
Opioid Claims
20 (0.7% rate)
Antibiotic Claims
303

Patient Demographics

Average Patient Age
72.5 years
Avg HCC Risk Score
1.12
Gender Split
60% female / 40% male
Age Distribution
<65: 72, 65-74: 278, 75-84: 172, 85+: 56

Top Prescribed Drugs (Medicare Part D)

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

What MARY MCMAHON, DNP, FNP-BC, CRNP 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
Prednisone
134
Amlodipine Besylate
120
Levothyroxine Sodium
112
Lisinopril
103
Atorvastatin Calcium
102
Pantoprazole Sodium
98
Azithromycin
79
Omeprazole
73
Cephalexin
65
Furosemide
64

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

Family Nurse Practitioner Overview

How MARY MCMAHON, DNP, FNP-BC, CRNP fits within the Family Nurse Practitioner landscape nationally.

209,817
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider

MARY MCMAHON, DNP, FNP-BC, CRNP's 2,858 claims are above the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in Pennsylvania

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

Compare Family Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARY MCMAHON, DNP, FNP-BC, CRNP's specialty?
MARY MCMAHON, DNP, FNP-BC, CRNP specializes in Family Nurse Practitioner and practices in LATROBE, Pennsylvania. Credentials: DNP, FNP-BC, CRNP.
How much does MARY MCMAHON, DNP, FNP-BC, CRNP prescribe under Medicare Part D?
In 2023, MARY MCMAHON, DNP, FNP-BC, CRNP wrote 2,858 Medicare Part D claims totaling $194K in drug costs for 578 beneficiaries.
Where is MARY MCMAHON, DNP, FNP-BC, CRNP located?
MARY MCMAHON, DNP, FNP-BC, CRNP is located at 555 PA-217, LATROBE, PA, 15650. Phone: (724) 694-2723.
What is MARY MCMAHON, DNP, FNP-BC, CRNP's NPI number?
MARY MCMAHON, DNP, FNP-BC, CRNP's National Provider Identifier (NPI) is 1174261374, issued on 05/26/2022.
Does MARY MCMAHON, DNP, FNP-BC, CRNP prescribe more brand-name or generic drugs?
MARY MCMAHON, DNP, FNP-BC, CRNP's prescribing is 10% brand-name and 90% generic drugs by claim count, with $148K in brand drug costs.
Does MARY MCMAHON, DNP, FNP-BC, CRNP prescribe opioids?
Yes, MARY MCMAHON, DNP, FNP-BC, CRNP had 20 opioid claims in 2023 with an opioid prescribing rate of 0.7%.
How many Family Nurse Practitioner providers are there in the US?
There are 209,817 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does MARY MCMAHON, DNP, FNP-BC, CRNP prescribe most often?
Based on 2023 Medicare Part D data, MARY MCMAHON, DNP, FNP-BC, CRNP's most frequently prescribed drugs include Prednisone, Amlodipine Besylate, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARY MCMAHON, DNP, FNP-BC, CRNP accept Medicare?
MARY MCMAHON, DNP, FNP-BC, CRNP appears in CMS Medicare data with 2,858 Part D claims and 578 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARY MCMAHON, DNP, FNP-BC, CRNP's credentials?
MARY MCMAHON, DNP, FNP-BC, CRNP's NPI is 1174261374 with credentials DNP, FNP-BC, CRNP. 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