2026 NPPES data Orthopedic Registered Nurse NPI 1578291258 FNP-C
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MANDY GUILLIAMS, FNP-C

Orthopedic Registered Nurse in ALEXANDRIA, Louisiana. 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
192
Medicare Part D claims · 115 beneficiaries · Orthopedic Registered Nurse avg: 568
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

MANDY GUILLIAMS, FNP-C filed 192 Medicare Part D claims in 2023 as a Orthopedic Registered Nurse in ALEXANDRIA, Louisiana, prescribing 94% generic.

192
Part D claims, 2023
94%
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.

MANDY GUILLIAMS, FNP-C's Medicare Part D volume vs every U.S. prescriber

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

192 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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

What does the federal data show about MANDY GUILLIAMS, FNP-C?

Quality data not reported

NPI registry status

Active

Issued 08/10/2022

NPI 1578291258

Primary specialty

Orthopedic Registered Nurse

Rare

283 US NPIs in this specialty

Medicare Part D claims

192 66% vs specialty avg

2023 prescription claims

Specialty avg: 568

Specialty distribution in Louisiana

How Orthopedic Registered Nurse compares to other specialties among Louisiana providers

Louisiana providers

Orthopedic Registered Nurse share within Louisiana

1. Orthopedic Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Orthopedic Registered Nurse share within Louisiana

Specialty board-certification context

Estimated specialty board-certified rate — Orthopedic Registered Nurse (ABMS / AOA reference)

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

Est. board-certified rate (Orthopedic Registered Nurse) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Orthopedic Registered Nurse) — 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).

MANDY GUILLIAMS, FNP-C is a Orthopedic Registered Nurse provider practicing in ALEXANDRIA, Louisiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: FNP-C. NPI: 1578291258. 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.

MANDY GUILLIAMS, FNP-C appears in the CMS NPPES registry as a Orthopedic Registered Nurse provider holding FNP-C credentials at 3444 MASONIC DR, ALEXANDRIA, LA, 71301, with a listed phone of (318) 473-9556. NPI 1578291258 was issued on 08/10/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GUILLIAMS 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 192 prescription claims written by this provider, covering 115 Medicare beneficiaries and totaling roughly $7K in drug spend, split 6% brand-name and 94% generic by claim count, with an opioid prescribing rate of 68.8%. 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.

Orthopedic Registered Nurse is a narrow specialty nationwide, with 283 enrolled providers across 48 states and an average of 568 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

3444 MASONIC DR
ALEXANDRIA, LA 71301

Provider Details

NPI 1578291258
Specialty Orthopedic Registered Nurse
Credentials FNP-C
Gender Female
NPI Issued 08/10/2022

Hospital and facility affiliations

Facilities where MANDY GUILLIAMS, FNP-C 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.

MID STATE ORTHOPAEDIC AND SPORTS MEDICINE CENTER LLC
ALEXANDRIA, LA

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

Brand vs generic prescribing mix · Generic-heavy

MANDY GUILLIAMS, FNP-C — brand share 6.0%
Specialty average (est.)

6% brand-name claims vs 94% generic, on 192 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.

192
Total Claims
$7K
Total Drug Cost
115
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
192
Total Day Supply
1,972
Brand vs Generic
6% brand / 94% generic
Brand Drug Cost
$5K
Generic Drug Cost
$1K
Opioid Claims
132 (68.8% rate)
Antibiotic Claims
13

Patient Demographics

Average Patient Age
70.6 years
Avg HCC Risk Score
1.03
Gender Split
66% female / 34% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
82
Tramadol Hcl
29
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
21
Methylprednisolone
13
Eliquis
Apixaban
11
Meloxicam
11

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

Orthopedic Registered Nurse Overview

How MANDY GUILLIAMS, FNP-C fits within the Orthopedic Registered Nurse landscape nationally.

283
Orthopedic Registered Nurse Providers in US
48
States with Orthopedic Registered Nurse
568
Avg Claims per Provider

MANDY GUILLIAMS, FNP-C's 192 claims are below the specialty average of 568.

Nearby Orthopedic Registered Nurse Providers in Louisiana

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

Compare Orthopedic Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is MANDY GUILLIAMS, FNP-C's specialty?
MANDY GUILLIAMS, FNP-C specializes in Orthopedic Registered Nurse and practices in ALEXANDRIA, Louisiana. Credentials: FNP-C.
How much does MANDY GUILLIAMS, FNP-C prescribe under Medicare Part D?
In 2023, MANDY GUILLIAMS, FNP-C wrote 192 Medicare Part D claims totaling $7K in drug costs for 115 beneficiaries.
Where is MANDY GUILLIAMS, FNP-C located?
MANDY GUILLIAMS, FNP-C is located at 3444 MASONIC DR, ALEXANDRIA, LA, 71301. Phone: (318) 473-9556.
What is MANDY GUILLIAMS, FNP-C's NPI number?
MANDY GUILLIAMS, FNP-C's National Provider Identifier (NPI) is 1578291258, issued on 08/10/2022.
Does MANDY GUILLIAMS, FNP-C prescribe more brand-name or generic drugs?
MANDY GUILLIAMS, FNP-C's prescribing is 6% brand-name and 94% generic drugs by claim count, with $5K in brand drug costs.
Does MANDY GUILLIAMS, FNP-C prescribe opioids?
Yes, MANDY GUILLIAMS, FNP-C had 132 opioid claims in 2023 with an opioid prescribing rate of 68.8%.
How many Orthopedic Registered Nurse providers are there in the US?
There are 283 Orthopedic Registered Nurse providers across 48 states in the US. The average Orthopedic Registered Nurse provider writes 568 Medicare Part D claims per year.
What drugs does MANDY GUILLIAMS, FNP-C prescribe most often?
Based on 2023 Medicare Part D data, MANDY GUILLIAMS, FNP-C's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Tramadol Hcl, Oxycodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MANDY GUILLIAMS, FNP-C accept Medicare?
MANDY GUILLIAMS, FNP-C appears in CMS Medicare data with 192 Part D claims and 115 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MANDY GUILLIAMS, FNP-C's credentials?
MANDY GUILLIAMS, FNP-C's NPI is 1578291258 with credentials FNP-C. 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