NPI registry status
Active
2026 NPPES data Neurology Physician NPI 1295173656 DO
Verify on CMS → Barbara Merriman, DO
Neurology Physician in Rapid City, South Dakota.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 19,866 in Neurology Physician, 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
552
Medicare Part D claims · 141 beneficiaries · Neurology Physician avg: 1K
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Barbara Merriman, DO filed 552 Medicare Part D claims in 2023 as a Neurology Physician in Rapid City, South Dakota.
- 552
- Part D claims, 2023
- Likely
- board-certified (heuristic)
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.
Barbara Merriman, DO's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
552 Top 34% higher than 66% 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
✓
Board certification likely (heuristic, not verified)
Barbara Merriman, DO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Barbara Merriman, DO?
Quality data not reportedPrimary specialty
Neurology Physician
Medicare Part D claims
552 58% vs specialty avg
Specialty distribution in South Dakota
How Neurology Physician compares to other specialties among South Dakota 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 Neurology Physician. 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).
Barbara Merriman, DO appears in the CMS NPPES registry as a Neurology Physician provider holding DO credentials at 2929 5TH ST, Rapid City, SD, 57701, with a listed phone of (605) 755-1000. NPI 1295173656 was issued on 06/07/2013.
Medicare Part D records for calendar year 2023 show 552 prescription claims written by this provider, covering 141 Medicare beneficiaries and totaling roughly $15K in drug spend.
Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 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 | 1295173656 |
|---|---|
| Specialty | Neurology Physician |
| Credentials | DO |
| Gender | Female |
| NPI Issued | 06/07/2013 |
Hospital and facility affiliations
Facilities where Barbara Merriman, DO 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.
Cleveland Clinic
★★★★☆ 4/5
Cleveland, OH
Acute Care Hospitals
CMS CCN: 360180
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
552
Total Claims
$15K
Total Drug Cost
141
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 752
- Total Day Supply
- 20,871
- Generic Drug Cost
- $11K
Patient Demographics
- Average Patient Age
- 71.8 years
- Avg HCC Risk Score
- 1.41
- Gender Split
- 60% female / 40% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Barbara Merriman, DO prescribes most
Top Medicare Part D drugs by claim count, 2023
- Gabapentin
Gabapentin
195 claims
- Duloxetine Hcl 53
Duloxetine Hcl
53 claims
- Lorazepam 32
Lorazepam
32 claims
- Pregabalin 30
Pregabalin
30 claims
- Topiramate 26
Topiramate
26 claims
- Atorvastatin Calcium 20
Atorvastatin Calcium
20 claims
- Sumatriptan Succin… 18
Sumatriptan Succinate
18 claims
- Clopidogrel 15
Clopidogrel
15 claims
| Drug | Claims |
|---|---|
| Gabapentin | 195 |
| Duloxetine Hcl | 53 |
| Lorazepam | 32 |
| Pregabalin | 30 |
| Topiramate | 26 |
| Atorvastatin Calcium | 20 |
| Sumatriptan Succinate | 18 |
| Clopidogrel Clopidogrel Bisulfate | 15 |
| Memantine Hcl | 15 |
| Baclofen | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Neurology Physician Overview
How Barbara Merriman, DO fits within the Neurology Physician landscape nationally.
19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider
Barbara Merriman, DO's 552 claims are below the specialty average of 1,309.
Nearby Neurology Physician Providers in South Dakota
Other clinicians with the same primary specialty enrolled in South Dakota, drawn from the same CMS NPPES roster as Merriman.
Dr. William Andrews
MD
Yankton, SD
Dr. Arsalan Anwar
M.D.
Sioux Falls, SD
Dr. Michael Bergan
M.D.
Sioux Falls, SD
Dr. Jeffrey Boyle
MD/PHD
Sioux Falls, SD
Dr. Douglas Brown
MD
Rapid City, SD
Compare Neurology Physician 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 South Dakota medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Neurology Physician 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
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
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 South Dakota
Frequently Asked Questions
What is Barbara Merriman, DO's specialty? ▼
Barbara Merriman, DO specializes in Neurology Physician and practices in Rapid City, South Dakota. Credentials: DO.
How much does Barbara Merriman, DO prescribe under Medicare Part D? ▼
In 2023, Barbara Merriman, DO wrote 552 Medicare Part D claims totaling $15K in drug costs for 141 beneficiaries.
Where is Barbara Merriman, DO located? ▼
Barbara Merriman, DO is located at 2929 5TH ST, Rapid City, SD, 57701. Phone: (605) 755-1000.
What is Barbara Merriman, DO's NPI number? ▼
Barbara Merriman, DO's National Provider Identifier (NPI) is 1295173656, issued on 06/07/2013.
How many Neurology Physician providers are there in the US? ▼
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does Barbara Merriman, DO prescribe most often? ▼
Based on 2023 Medicare Part D data, Barbara Merriman, DO's most frequently prescribed drugs include Gabapentin, Duloxetine Hcl, Lorazepam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Barbara Merriman, DO accept Medicare? ▼
Barbara Merriman, DO appears in CMS Medicare data with 552 Part D claims and 141 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Barbara Merriman, DO's credentials? ▼
Barbara Merriman, DO's NPI is 1295173656 with credentials DO. 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.