NPI registry status
Active
2026 NPPES data Surgery Physician NPI 1104938182 M.D.
Verify on CMS → Robert Coray, M.D.
Surgery Physician in Rexburg, Idaho.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 36,199 in Surgery 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
130
Medicare Part D claims · 108 beneficiaries · Surgery Physician avg: 169
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$23.75
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Robert Coray, M.D. filed 130 Medicare Part D claims in 2023 as a Surgery Physician in Rexburg, Idaho, prescribing 83% generic.
- 130
- Part D claims, 2023
- 83%
- generic prescribing
- 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.
Robert Coray, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
130 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
✓
Board certification likely (heuristic, not verified)
Robert Coray, M.D. 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 Robert Coray, M.D.?
Quality data not reportedPrimary specialty
Surgery Physician
Medicare Part D claims
130 23% vs specialty avg
Specialty distribution in Idaho
How Surgery Physician compares to other specialties among Idaho 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 Surgery 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).
Robert Coray, M.D. appears in the CMS NPPES registry as a Surgery Physician provider holding M.D. credentials at 859 S YELLOWSTONE HWY STE 3301, Rexburg, ID, 83440, with a listed phone of (208) 356-9086. NPI 1104938182 was issued on 08/31/2006.
Medicare Part D records for calendar year 2023 show 130 prescription claims written by this provider, covering 108 Medicare beneficiaries and totaling roughly $5K in drug spend, split 17% brand-name and 83% generic by claim count, with an opioid prescribing rate of 19.2%.
Surgery Physician is a mid-sized specialty nationwide, with 36,199 enrolled providers across 56 states and an average of 169 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 | 1104938182 |
|---|---|
| Specialty | Surgery Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 08/31/2006 |
Hospital and facility affiliations
Facilities where Robert Coray, M.D. 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.
Minidoka Memorial Hospital
Rupert, ID
Critical Access Hospitals
CMS CCN: 131319
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 Robert Coray, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$24
Largest payer
TELA Bio, Inc.
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.
Brand vs generic prescribing mix · Typical
Robert Coray, M.D. - brand share 17.0%
Surgery Physician average
17% brand-name claims vs 83% generic, on 130 2023 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 2023.
130
Total Claims
$5K
Total Drug Cost
108
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 139
- Total Day Supply
- 899
- Brand vs Generic
- 17% brand / 83% generic
- Brand Drug Cost
- $2K
- Generic Drug Cost
- $2K
- Opioid Claims
- 25 (19.2% rate)
Patient Demographics
- Average Patient Age
- 69.4 years
- Avg HCC Risk Score
- 0.92
- Gender Split
- 53% female / 47% 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 |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 22 |
| Omeprazole | 11 |
| Gavilyte-G "Peg3350/Sod Sulf | N/A |
| Sod Sulf-Potass Sulf-Mag Sulf "Sodium | N/A |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Surgery Physician Overview
How Robert Coray, M.D. fits within the Surgery Physician landscape nationally.
36,199
Surgery Physician Providers in US
56
States with Surgery Physician
169
Avg Claims per Provider
Robert Coray, M.D.'s 130 claims are below the specialty average of 169.
Nearby Surgery Physician Providers in Idaho
Other clinicians with the same primary specialty enrolled in Idaho, drawn from the same CMS NPPES roster as Coray.
Dr. Jon Agee
M.D.
Caldwell, ID
Dr. Bryan Anderson
MD
Moscow, ID
Dr. Lucas Anderson
MD
Coeur D Alene, ID
Hugo Araujo Lino
Boise, ID
Dr. Rachael Armstrong
M.D.
Lewiston, ID
Compare Surgery 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 Idaho medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Surgery 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.
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Frequently Asked Questions
What is Robert Coray, M.D.'s specialty? ▼
Robert Coray, M.D. specializes in Surgery Physician and practices in Rexburg, Idaho. Credentials: M.D..
How much does Robert Coray, M.D. prescribe under Medicare Part D? ▼
In 2023, Robert Coray, M.D. wrote 130 Medicare Part D claims totaling $5K in drug costs for 108 beneficiaries.
Where is Robert Coray, M.D. located? ▼
Robert Coray, M.D. is located at 859 S YELLOWSTONE HWY STE 3301, Rexburg, ID, 83440. Phone: (208) 356-9086.
What is Robert Coray, M.D.'s NPI number? ▼
Robert Coray, M.D.'s National Provider Identifier (NPI) is 1104938182, issued on 08/31/2006.
Does Robert Coray, M.D. prescribe more brand-name or generic drugs? ▼
Robert Coray, M.D.'s prescribing is 17% brand-name and 83% generic drugs by claim count, with $2K in brand drug costs.
Does Robert Coray, M.D. prescribe opioids? ▼
Yes, Robert Coray, M.D. had 25 opioid claims in 2023 with an opioid prescribing rate of 19.2%.
How many Surgery Physician providers are there in the US? ▼
There are 36,199 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 169 Medicare Part D claims per year.
What drugs does Robert Coray, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Robert Coray, M.D.'s most frequently prescribed drugs include Hydrocodone-Acetaminophen, Omeprazole, Gavilyte-G. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Robert Coray, M.D. accept Medicare? ▼
Robert Coray, M.D. appears in CMS Medicare data with 130 Part D claims and 108 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Robert Coray, M.D.'s credentials? ▼
Robert Coray, M.D.'s NPI is 1104938182 with credentials M.D.. 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.