NPI registry status
Active
2026 NPPES data Pain Medicine (Anesthesiology) Physician NPI 1679836266 DO
Verify on CMS → Ross Barker, DO
Pain Medicine (Anesthesiology) Physician in Providence, Rhode Island.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,020 in Pain Medicine (Anesthesiology) 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
54
Medicare Part D claims · 33 beneficiaries · Pain Medicine (Anesthesiology) Physician avg: 2K
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Ross Barker, DO filed 54 Medicare Part D claims in 2023 as a Pain Medicine (Anesthesiology) Physician in Providence, Rhode Island.
- 54
- 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.
Ross Barker, DO's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
54 0th percentile higher than 0% 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)
Ross Barker, 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 Ross Barker, DO?
Quality data not reportedPrimary specialty
Pain Medicine (Anesthesiology) Physician
Medicare Part D claims
54 97% vs specialty avg
Specialty distribution in Rhode Island
How Pain Medicine (Anesthesiology) Physician compares to other specialties among Rhode Island 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 Pain Medicine (Anesthesiology) 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).
Ross Barker, DO appears in the CMS NPPES registry as a Pain Medicine (Anesthesiology) Physician provider holding DO credentials at 164 SUMMIT AVE, Providence, RI, 02906, with a listed phone of (401) 793-9166. NPI 1679836266 was issued on 06/19/2012.
Medicare Part D records for calendar year 2023 show 54 prescription claims written by this provider, covering 33 Medicare beneficiaries and totaling roughly $672 in drug spend.
Pain Medicine (Anesthesiology) Physician is a narrow specialty nationwide, with 4,020 enrolled providers across 53 states and an average of 1,657 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 | 1679836266 |
|---|---|
| Specialty | Pain Medicine (Anesthesiology) Physician |
| Credentials | DO |
| Gender | Male |
| NPI Issued | 06/19/2012 |
Hospital and facility affiliations
Facilities where Ross Barker, 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.
Newport Hospital
★★★★☆ 4/5
Newport, RI
Acute Care Hospitals
CMS CCN: 410006
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.
54
Total Claims
$672
Total Drug Cost
33
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 54
- Total Day Supply
- 1,419
- Generic Drug Cost
- $615
Patient Demographics
- Average Patient Age
- 72.8 years
- Avg HCC Risk Score
- 0.80
- Gender Split
- 58% female / 42% 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 |
|---|---|
| Gabapentin | 32 |
| Pregabalin | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Pain Medicine (Anesthesiology) Physician in RI →
All providers in Rhode Island →
Compare specialties →
Pain Medicine (Anesthesiology) Physician Overview
How Ross Barker, DO fits within the Pain Medicine (Anesthesiology) Physician landscape nationally.
4,020
Pain Medicine (Anesthesiology) Physician Providers in US
53
States with Pain Medicine (Anesthesiology) Physician
1,657
Avg Claims per Provider
Ross Barker, DO's 54 claims are below the specialty average of 1,657.
Nearby Pain Medicine (Anesthesiology) Physician Providers in Rhode Island
Other clinicians with the same primary specialty enrolled in Rhode Island, drawn from the same CMS NPPES roster as Barker.
Dr. Emad Bassaly
MD
Cumberland, RI
Dr. Annmarie Gonzalez Munoz
MD
Providence, RI
Dr. Woo Jin Lee
M.D.
Westerly, RI
Dr. Keith-Austin Scarfo
D.O.
Providence, RI
Dr. Afreen Siddiqui
MD
Warwick, RI
Compare Pain Medicine (Anesthesiology) 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 Rhode Island medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Pain Medicine (Anesthesiology) 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 Rhode Island
Frequently Asked Questions
What is Ross Barker, DO's specialty? ▼
Ross Barker, DO specializes in Pain Medicine (Anesthesiology) Physician and practices in Providence, Rhode Island. Credentials: DO.
How much does Ross Barker, DO prescribe under Medicare Part D? ▼
In 2023, Ross Barker, DO wrote 54 Medicare Part D claims totaling $672 in drug costs for 33 beneficiaries.
Where is Ross Barker, DO located? ▼
Ross Barker, DO is located at 164 SUMMIT AVE, Providence, RI, 02906. Phone: (401) 793-9166.
What is Ross Barker, DO's NPI number? ▼
Ross Barker, DO's National Provider Identifier (NPI) is 1679836266, issued on 06/19/2012.
How many Pain Medicine (Anesthesiology) Physician providers are there in the US? ▼
There are 4,020 Pain Medicine (Anesthesiology) Physician providers across 53 states in the US. The average Pain Medicine (Anesthesiology) Physician provider writes 1,657 Medicare Part D claims per year.
What drugs does Ross Barker, DO prescribe most often? ▼
Based on 2023 Medicare Part D data, Ross Barker, DO's most frequently prescribed drugs include Gabapentin, Pregabalin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ross Barker, DO accept Medicare? ▼
Ross Barker, DO appears in CMS Medicare data with 54 Part D claims and 33 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ross Barker, DO's credentials? ▼
Ross Barker, DO's NPI is 1679836266 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.