NPI registry status
Active
2026 NPPES data Critical Care Medicine Registered Nurse NPI 1508558800
Verify on CMS → Margaret Colter
Critical Care Medicine Registered Nurse in Nashville, Tennessee.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,553 in Critical Care Medicine 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
124
Medicare Part D claims · 21 beneficiaries · Critical Care Medicine Registered Nurse avg: 752
Industry payments
$412.41
13 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Margaret Colter filed 124 Medicare Part D claims in 2023 as a Critical Care Medicine Registered Nurse in Nashville, Tennessee.
- 124
- Part D claims, 2023
- $412.41
- industry payments (Sunshine Act)
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.
Margaret Colter's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
124 35th percentile higher than 35% 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 Margaret Colter?
Quality data not reportedPrimary specialty
Critical Care Medicine Registered Nurse
Medicare Part D claims
124 84% vs specialty avg
Specialty distribution in Tennessee
How Critical Care Medicine Registered Nurse compares to other specialties among Tennessee 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 Critical Care Medicine 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).
Margaret Colter appears in the CMS NPPES registry as a Critical Care Medicine Registered Nurse provider at 2400 PATTERSON ST STE 307, Nashville, TN, 37203, with a listed phone of (615) 342-6900. NPI 1508558800 was issued on 05/24/2023.
Medicare Part D records for calendar year 2023 show 124 prescription claims written by this provider, covering 21 Medicare beneficiaries and totaling roughly $3K in drug spend, with an opioid prescribing rate of 15.3%.
Critical Care Medicine Registered Nurse is a mid-sized specialty nationwide, with 6,553 enrolled providers across 53 states and an average of 752 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 | 1508558800 |
|---|---|
| Specialty | Critical Care Medicine Registered Nurse |
| Gender | Female |
| NPI Issued | 05/24/2023 |
Hospital and facility affiliations
Facilities where Margaret Colter 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.
Tristar Cardiovascular Surgery LLC
Nashville, TN
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Margaret Colter. Source: openpaymentsdata.cms.gov.
Total received
$412
Largest payer
Abbott Laboratories
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
124
Total Claims
$3K
Total Drug Cost
21
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 153
- Total Day Supply
- 3,875
- Generic Drug Cost
- $803
- Opioid Claims
- 19 (15.3% rate)
Patient Demographics
- Average Patient Age
- 69.1 years
- Avg HCC Risk Score
- 1.04
- Gender Split
- 0% female / 100% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Margaret Colter prescribes most
Top Medicare Part D drugs by claim count, 2023
- Metoprolol Tartrate
Metoprolol Tartrate
20 claims
- Furosemide
Furosemide
19 claims
- Oxycodone Hcl
Oxycodone Hcl
18 claims
- Clopidogrel
Clopidogrel
16 claims
- Atorvastatin Calcium
Atorvastatin Calcium
15 claims
- Potassium Chloride
Potassium Chloride
13 claims
| Drug | Claims |
|---|---|
| Metoprolol Tartrate | 20 |
| Furosemide | 19 |
| Oxycodone Hcl | 18 |
| Clopidogrel Clopidogrel Bisulfate | 16 |
| Atorvastatin Calcium | 15 |
| Potassium Chloride | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Critical Care Medicine Registered Nurse in TN →
All providers in Tennessee →
Compare specialties →
Critical Care Medicine Registered Nurse Overview
How Margaret Colter fits within the Critical Care Medicine Registered Nurse landscape nationally.
6,553
Critical Care Medicine Registered Nurse Providers in US
53
States with Critical Care Medicine Registered Nurse
752
Avg Claims per Provider
Margaret Colter's 124 claims are below the specialty average of 752.
Nearby Critical Care Medicine Registered Nurse Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Colter.
Linda Abercrombie
Nashville, TN
Grace Achim
Madison, TN
Victoria Adamson
Nashville, TN
Ayobami Adebisi
Madison, TN
Madison Aguilera
Madison, TN
Compare Critical Care Medicine 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 Tennessee medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Critical Care Medicine 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.
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Frequently Asked Questions
What is Margaret Colter's specialty? ▼
Margaret Colter specializes in Critical Care Medicine Registered Nurse and practices in Nashville, Tennessee.
How much does Margaret Colter prescribe under Medicare Part D? ▼
In 2023, Margaret Colter wrote 124 Medicare Part D claims totaling $3K in drug costs for 21 beneficiaries.
Where is Margaret Colter located? ▼
Margaret Colter is located at 2400 PATTERSON ST STE 307, Nashville, TN, 37203. Phone: (615) 342-6900.
What is Margaret Colter's NPI number? ▼
Margaret Colter's National Provider Identifier (NPI) is 1508558800, issued on 05/24/2023.
Does Margaret Colter prescribe opioids? ▼
Yes, Margaret Colter had 19 opioid claims in 2023 with an opioid prescribing rate of 15.3%.
How many Critical Care Medicine Registered Nurse providers are there in the US? ▼
There are 6,553 Critical Care Medicine Registered Nurse providers across 53 states in the US. The average Critical Care Medicine Registered Nurse provider writes 752 Medicare Part D claims per year.
What drugs does Margaret Colter prescribe most often? ▼
Based on 2023 Medicare Part D data, Margaret Colter's most frequently prescribed drugs include Metoprolol Tartrate, Furosemide, Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Margaret Colter accept Medicare? ▼
Margaret Colter appears in CMS Medicare data with 124 Part D claims and 21 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Margaret Colter's credentials? ▼
Margaret Colter's NPI is 1508558800. 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.