NPI registry status
Active
2026 NPPES data Emergency Registered Nurse NPI 1811591852 FNP-BC
Verify on CMS → Marcella Masterson, FNP-BC
Emergency Registered Nurse in Pueblo, Colorado.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,350 in Emergency 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
354
Medicare Part D claims · 169 beneficiaries · Emergency Registered Nurse avg: 710
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Marcella Masterson, FNP-BC filed 354 Medicare Part D claims in 2023 as a Emergency Registered Nurse in Pueblo, Colorado.
- 354
- Part D claims, 2023
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.
Marcella Masterson, FNP-BC's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
354 Top 43% higher than 57% of 1,370,886 prescribers
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 Marcella Masterson, FNP-BC?
Quality data not reportedPrimary specialty
Emergency Registered Nurse
Medicare Part D claims
354 50% vs specialty avg
Specialty distribution in Colorado
How Emergency Registered Nurse compares to other specialties among Colorado 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 Emergency 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).
Marcella Masterson, FNP-BC appears in the CMS NPPES registry as an Emergency Registered Nurse provider holding FNP-BC credentials at 1310 FORTINO BLVD STE D, Pueblo, CO, 81008, with a listed phone of (719) 582-1898. NPI 1811591852 was issued on 11/30/2020.
Medicare Part D records for calendar year 2023 show 354 prescription claims written by this provider, covering 169 Medicare beneficiaries and totaling roughly $22K in drug spend, with an opioid prescribing rate of 6.2%.
Emergency Registered Nurse is a narrow specialty nationwide, with 4,350 enrolled providers across 54 states and an average of 710 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
Provider Details
| NPI | 1811591852 |
|---|---|
| Specialty | Emergency Registered Nurse |
| Credentials | FNP-BC |
| Gender | Female |
| NPI Issued | 11/30/2020 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
354
Total Claims
$22K
Total Drug Cost
169
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 562
- Total Day Supply
- 13,939
- Generic Drug Cost
- $5K
- Opioid Claims
- 22 (6.2% rate)
- Antibiotic Claims
- 59
Patient Demographics
- Average Patient Age
- 66.0 years
- Avg HCC Risk Score
- 1.50
- Gender Split
- 63% female / 37% male
- Age Distribution
- <65: 57, 65-74: 79, 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.
What Marcella Masterson, FNP-BC prescribes most
Top Medicare Part D drugs by claim count, 2023
- Lisinopril
Lisinopril
14 claims
- Metformin Hcl
Metformin Hcl
14 claims
- Nitrofurantoin Mon…
Nitrofurantoin Mono-Macro
14 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
12 claims
- Prednisone
Prednisone
12 claims
- Amlodipine Besylate
Amlodipine Besylate
11 claims
| Drug | Claims |
|---|---|
| Lisinopril | 14 |
| Metformin Hcl | 14 |
| Nitrofurantoin Mono-Macro Nitrofurantoin Monohyd/M-Cryst | 14 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 12 |
| Prednisone | 12 |
| Amlodipine Besylate | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Emergency Registered Nurse Overview
How Marcella Masterson, FNP-BC fits within the Emergency Registered Nurse landscape nationally.
4,350
Emergency Registered Nurse Providers in US
54
States with Emergency Registered Nurse
710
Avg Claims per Provider
Marcella Masterson, FNP-BC's 354 claims are below the specialty average of 710.
Nearby Emergency Registered Nurse Providers in Colorado
Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as Masterson.
Dr. Joanne Accardi
NP-C
Aurora, CO
Dr. Kathy Adam
RN
Westminster, CO
Elizabeth Agan
Westminster, CO
Delores Anderson
Palisade, CO
Dr. Jessica Axel
RN
Lone Tree, CO
Compare Emergency Registered Nurse nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Colorado medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Emergency Registered Nurse peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
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How to Find a Doctor
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Colorado
Frequently Asked Questions
What is Marcella Masterson, FNP-BC's specialty? ▼
Marcella Masterson, FNP-BC specializes in Emergency Registered Nurse and practices in Pueblo, Colorado. Credentials: FNP-BC.
How much does Marcella Masterson, FNP-BC prescribe under Medicare Part D? ▼
In 2023, Marcella Masterson, FNP-BC wrote 354 Medicare Part D claims totaling $22K in drug costs for 169 beneficiaries.
Where is Marcella Masterson, FNP-BC located? ▼
Marcella Masterson, FNP-BC is located at 1310 FORTINO BLVD STE D, Pueblo, CO, 81008. Phone: (719) 582-1898.
What is Marcella Masterson, FNP-BC's NPI number? ▼
Marcella Masterson, FNP-BC's National Provider Identifier (NPI) is 1811591852, issued on 11/30/2020.
Does Marcella Masterson, FNP-BC prescribe opioids? ▼
Yes, Marcella Masterson, FNP-BC had 22 opioid claims in 2023 with an opioid prescribing rate of 6.2%.
How many Emergency Registered Nurse providers are there in the US? ▼
There are 4,350 Emergency Registered Nurse providers across 54 states in the US. The average Emergency Registered Nurse provider writes 710 Medicare Part D claims per year.
What drugs does Marcella Masterson, FNP-BC prescribe most often? ▼
Based on 2023 Medicare Part D data, Marcella Masterson, FNP-BC's most frequently prescribed drugs include Lisinopril, Metformin Hcl, Nitrofurantoin Mono-Macro. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Marcella Masterson, FNP-BC accept Medicare? ▼
Marcella Masterson, FNP-BC appears in CMS Medicare data with 354 Part D claims and 169 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Marcella Masterson, FNP-BC's credentials? ▼
Marcella Masterson, FNP-BC's NPI is 1811591852 with credentials FNP-BC. 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 (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
Compiled from official public sources by the PlainDoctor editorial team.
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 May 2026.