NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1770581761 M.D.
Verify on CMS → James Cain, M.D.
Nephrology Physician in Roanoke, Virginia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,534 in Nephrology 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
797
Medicare Part D claims · 164 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
70%
generic claims · 30% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
82.3/100
▼ 1 pts below national avg 83.1 · Above neutral
Industry payments
$16.69
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
James Cain, M.D. reported a CMS MIPS final score of 82.3/100 - below the 83.1 national average - and filed 797 Medicare Part D claims in 2023.
- 82.3/100
- MIPS score · -1 vs avg
- 797
- Part D claims, 2023
- 70%
- 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.
James Cain, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
82 39th percentile higher than 39% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where James Cain, M.D. sits
This provider among nephrology physician peers
Across the 2,476 nephrology physician providers who report both Medicare Part D prescribing and a MIPS quality score, James Cain, M.D. writes more Part D claims than 38% of them and scores higher on MIPS quality than 51% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one nephrology physician peer from a representative sample of 60; the gold marker is James Cain, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
James Cain, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 James Cain, M.D.?
Near national averagePrimary specialty
Nephrology Physician
Medicare Part D claims
797 45% vs specialty avg
MIPS final score
82.3/100 0.8 pts vs avg
Specialty distribution in Virginia
How Nephrology Physician compares to other specialties among Virginia providers
Medicare quality performance, MIPS
James Cain, M.D.'s 2023 MIPS final score plotted against the Nephrology Physician national average
- MIPS Final Score
- 82.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Nephrology Physician) - 82.3/100 vs national avg 83.1
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).
James Cain, M.D. appears in the CMS NPPES registry as a Nephrology Physician provider holding M.D. credentials at 2602 FRANKLIN RD SW, Roanoke, VA, 24014, with a listed phone of (540) 344-1400. NPI 1770581761 was issued on 07/13/2005.
Medicare Part D records for calendar year 2023 show 797 prescription claims written by this provider, covering 164 Medicare beneficiaries and totaling roughly $277K in drug spend, split 30% brand-name and 70% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 82.3/100 for the 2023 performance year (Quality 74.3, Cost 77.5), compared with the national average of 83.1.
Nephrology Physician is a mid-sized specialty nationwide, with 10,534 enrolled providers across 55 states and an average of 1,454 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 | 1770581761 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 07/13/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
82.2833
Final Score
Avg: 83.1
74.3066
Quality
77.4709
Cost
67
Promoting Interoperability
Reporting: Group practice
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 James Cain, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$17
Largest payer
Vifor Pharma, 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 · Above average
James Cain, M.D. - brand share 30.0%
Nephrology Physician average
30% brand-name claims vs 70% generic, on 797 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.
797
Total Claims
$277K
Total Drug Cost
164
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,717
- Total Day Supply
- 49,058
- Brand vs Generic
- 30% brand / 70% generic
- Brand Drug Cost
- $247K
- Generic Drug Cost
- $31K
Patient Demographics
- Average Patient Age
- 71.0 years
- Avg HCC Risk Score
- 3.91
- Gender Split
- 45% female / 55% male
- Age Distribution
- <65: 36, 65-74: 48, 75-84: 67, 85+: 13
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What James Cain, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Furosemide
Furosemide
137 claims
- Prosol
Prosol
66 claims
- Farxiga
Farxiga
64 claims
- Famotidine 47
Famotidine
47 claims
- Sevelamer Carbonate 44
Sevelamer Carbonate
44 claims
- Hydrochlorothiazide 39
Hydrochlorothiazide
39 claims
- Amlodipine Besylate 37
Amlodipine Besylate
37 claims
- Losartan Potassium 33
Losartan Potassium
33 claims
| Drug | Claims |
|---|---|
| Furosemide | 137 |
| Prosol Parenteral Amino Acid 20% No.1 | 66 |
| Farxiga Dapagliflozin Propanediol | 64 |
| Famotidine | 47 |
| Sevelamer Carbonate | 44 |
| Hydrochlorothiazide | 39 |
| Amlodipine Besylate | 37 |
| Losartan Potassium | 33 |
| Auryxia Ferric Citrate | 23 |
| Metolazone | 23 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How James Cain, M.D. fits within the Nephrology Physician landscape nationally.
10,534
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider
James Cain, M.D.'s 797 claims are below the specialty average of 1,454.
Nearby Nephrology Physician Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Cain.
Dr. Mark Aarons
M.D.
Arlington, VA
Emaad Abdel-Rahman
Charlottesville, VA
Dr. Walid Abou Assi
M.D.
Richmond, VA
Dr. Christopher Acker
M.D.
Richmond, VA
Dr. Oscar Adler
M.D., PHD
Leesburg, VA
Compare Nephrology 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 Virginia medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Nephrology 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 James Cain, M.D.'s specialty? ▼
James Cain, M.D. specializes in Nephrology Physician and practices in Roanoke, Virginia. Credentials: M.D..
How much does James Cain, M.D. prescribe under Medicare Part D? ▼
In 2023, James Cain, M.D. wrote 797 Medicare Part D claims totaling $277K in drug costs for 164 beneficiaries.
What is James Cain, M.D.'s Medicare quality score? ▼
James Cain, M.D. has a CMS MIPS Final Score of 82.3/100 (Quality: 74.3, Cost: 77.5). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is James Cain, M.D. located? ▼
James Cain, M.D. is located at 2602 FRANKLIN RD SW, Roanoke, VA, 24014. Phone: (540) 344-1400.
What is James Cain, M.D.'s NPI number? ▼
James Cain, M.D.'s National Provider Identifier (NPI) is 1770581761, issued on 07/13/2005.
Does James Cain, M.D. prescribe more brand-name or generic drugs? ▼
James Cain, M.D.'s prescribing is 30% brand-name and 70% generic drugs by claim count, with $247K in brand drug costs.
How many Nephrology Physician providers are there in the US? ▼
There are 10,534 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does James Cain, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, James Cain, M.D.'s most frequently prescribed drugs include Furosemide, Prosol, Farxiga. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does James Cain, M.D. accept Medicare? ▼
James Cain, M.D. appears in CMS Medicare data with 797 Part D claims and 164 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify James Cain, M.D.'s credentials? ▼
James Cain, M.D.'s NPI is 1770581761 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.