NPI registry status
Active
2026 NPPES data Orthopedic Registered Nurse NPI 1578291258 FNP-C
Verify on CMS → Mandy Guilliams, FNP-C
Orthopedic Registered Nurse in Alexandria, Louisiana.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 289 in Orthopedic Registered Nurse, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
479
Medicare Part D claims · 228 beneficiaries · Orthopedic Registered Nurse avg: 635
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Mandy Guilliams, FNP-C filed 479 Medicare Part D claims in 2024 as an Orthopedic Registered Nurse in Alexandria, Louisiana, prescribing 95% generic.
- 479
- Part D claims, 2024
- 95%
- generic prescribing
- ≥61st
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Mandy Guilliams, FNP-C
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1578291258), first enumerated 08/10/2022.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 479 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1578291258 · Orthopedic Registered Nurse
NPI-10 · ENUM-RECENT · TAX-TRACE · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1578291258
- ENUM-RECENT 2022
- TAX-TRACE 289
- RX-LIGHT 479
- BOOK-THIN 8 in Louisiana
- PHOTO-ENUM Amanda Smith, RN · 2022
Mandy Guilliams, FNP-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
479 ≥ 61st percentile 61% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Mandy Guilliams, FNP-C?
Quality data not reportedPrimary specialty
Orthopedic Registered Nurse
Medicare Part D claims
479 25% vs specialty avg
Specialty distribution in Louisiana
How Orthopedic Registered Nurse compares to other specialties among Louisiana providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Orthopedic Registered Nurse. Verify directly:
How MIPS and board certification work
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).
Practice Address
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 5.0%
Orthopedic Registered Nurse average
5% brand-name claims vs 95% generic, on 479 2024 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 2024.
479
Total Claims
$15K
Total Drug Cost
228
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 490
- Total Day Supply
- 5,706
- Brand vs Generic
- 5% brand / 95% generic
- Brand Drug Cost
- $11K
- Generic Drug Cost
- $4K
- Opioid Claims
- 312 (65.1% rate)
- Antibiotic Claims
- 27
Patient Demographics
- Average Patient Age
- 71.5 years
- Avg HCC Risk Score
- 0.95
- Gender Split
- 67% female / 33% male
- Age Distribution
- <65: 28, 65-74: 130, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Mandy Guilliams, FNP-C prescribes most
Top Medicare Part D drugs by claim count, 2024
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
209 claims
- Tramadol Hcl 70
Tramadol Hcl
70 claims
- Meloxicam 61
Meloxicam
61 claims
- Oxycodone-Acetamin… 33
Oxycodone-Acetaminophen
33 claims
- Methylprednisolone 30
Methylprednisolone
30 claims
- Eliquis 24
Eliquis
24 claims
- Sulfamethoxazole-T… 17
Sulfamethoxazole-Trimethoprim
17 claims
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 209 |
| Tramadol Hcl | 70 |
| Meloxicam | 61 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 33 |
| Methylprednisolone | 30 |
| Eliquis Apixaban | 24 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 17 |
* 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.
289
Orthopedic Registered Nurse Providers in US
48
States with Orthopedic Registered Nurse
635
Avg Claims per Provider
Mandy Guilliams, FNP-C's 479 claims are below the specialty average of 635.
Nationwide Orthopedic Registered Nurse peers with similar MIPS or enrollment year
Two federal-record peer sets for Guilliams, both outside Louisiana so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2022)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
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.
One of 8 Orthopedic Registered Nurse providers enrolled in Louisiana, 5 are shown here.
Amanda Duncan
Baton Rouge, LA
Senia Fontenot
ANP-C
Lake Charles, LA
Dr. Charla Johnson
DNP, RN, ONC
Gonzales, LA
John Kuehn
RNFA
Lake Charles, LA
Anthony Mancuso
R.N.
Baton Rouge, LA
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 2024, Mandy Guilliams, FNP-C wrote 479 Medicare Part D claims totaling $15K in drug costs for 228 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 5% brand-name and 95% generic drugs by claim count, with $11K in brand drug costs.
Does Mandy Guilliams, FNP-C prescribe opioids? ▼
Yes, Mandy Guilliams, FNP-C had 312 opioid claims in 2024 with an opioid prescribing rate of 65.1%.
How many Orthopedic Registered Nurse providers are there in the US? ▼
There are 289 Orthopedic Registered Nurse providers across 48 states in the US. The average Orthopedic Registered Nurse provider writes 635 Medicare Part D claims per year.
What drugs does Mandy Guilliams, FNP-C prescribe most often? ▼
Based on 2024 Medicare Part D data, Mandy Guilliams, FNP-C's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Tramadol Hcl, Meloxicam. 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 479 Part D claims and 228 Medicare beneficiaries in 2024. 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
View source datasets and methodology notes
- 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 (2024). 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.