2026 NPPES data Physician Assistant NPI 1164773370 PA
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MALLORY BAILEY, PA

Physician Assistant in DURHAM, North Carolina. 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
137
Medicare Part D claims · 40 beneficiaries · Physician Assistant avg: 790
What the federal data reveals: MALLORY BAILEY, PA is a Physician Assistant ([object Object]) practicing in DURHAM, North Carolina with a Medicare Part D prescribing footprint of 137 claims across 40 beneficiaries .

What stands out: MALLORY BAILEY, PA filed 137 Medicare Part D claims in 2023 across DURHAM, North Carolina. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

MALLORY BAILEY, PA at a glance

Quality data not reported

NPI registry status

Active

Issued 09/27/2012

NPI 1164773370

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

137 83% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in North Carolina

How Physician Assistant compares to other specialties among North Carolina providers

North Carolina providers

Physician Assistant share within North Carolina

1. Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physician Assistant share within North Carolina

Specialty board-certification context

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

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

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

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

MALLORY BAILEY, PA is a Physician Assistant provider practicing in DURHAM, North Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA. NPI: 1164773370. 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.

MALLORY BAILEY, PA appears in the CMS NPPES registry as a Physician Assistant provider holding PA credentials at 2301 ERWIN RD, DURHAM, NC, 27705, with a listed phone of (919) 684-8111. NPI 1164773370 was issued on 09/27/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BAILEY 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 137 prescription claims written by this provider, covering 40 Medicare beneficiaries and totaling roughly $5K in drug spend, with an opioid prescribing rate of 17.5%. 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.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 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

2301 ERWIN RD
DURHAM, NC 27705

Provider Details

NPI 1164773370
Specialty Physician Assistant
Credentials PA
Gender Female
NPI Issued 09/27/2012

Medicare Part D Prescribing Data

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

137
Total Claims
$5K
Total Drug Cost
40
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
156
Total Day Supply
3,523
Generic Drug Cost
$3K
Opioid Claims
24 (17.5% rate)
Antibiotic Claims
18

Patient Demographics

Average Patient Age
68.5 years
Avg HCC Risk Score
1.65
Gender Split
43% female / 58% male
Age Distribution
<65: 12, 65-74: 20, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Oxycodone Hcl
19
Furosemide
17
Metoprolol Tartrate
15
Potassium Chloride
15

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

Physician Assistant Overview

How MALLORY BAILEY, PA fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

MALLORY BAILEY, PA's 137 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in North Carolina

Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as BAILEY.

Compare Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is MALLORY BAILEY, PA's specialty?
MALLORY BAILEY, PA specializes in Physician Assistant and practices in DURHAM, North Carolina. Credentials: PA.
How much does MALLORY BAILEY, PA prescribe under Medicare Part D?
In 2023, MALLORY BAILEY, PA wrote 137 Medicare Part D claims totaling $5K in drug costs for 40 beneficiaries.
Where is MALLORY BAILEY, PA located?
MALLORY BAILEY, PA is located at 2301 ERWIN RD, DURHAM, NC, 27705. Phone: (919) 684-8111.
What is MALLORY BAILEY, PA's NPI number?
MALLORY BAILEY, PA's National Provider Identifier (NPI) is 1164773370, issued on 09/27/2012.
Does MALLORY BAILEY, PA prescribe opioids?
Yes, MALLORY BAILEY, PA had 24 opioid claims in 2023 with an opioid prescribing rate of 17.5%.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does MALLORY BAILEY, PA prescribe most often?
Based on 2023 Medicare Part D data, MALLORY BAILEY, PA's most frequently prescribed drugs include Oxycodone Hcl, Furosemide, Metoprolol Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MALLORY BAILEY, PA accept Medicare?
MALLORY BAILEY, PA appears in CMS Medicare data with 137 Part D claims and 40 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MALLORY BAILEY, PA's credentials?
MALLORY BAILEY, PA's NPI is 1164773370 with credentials PA. 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