NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1265439764 M.D.
Verify on CMS → Mary Barchman, M.D.
Nephrology Physician in Greenville, North Carolina.
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
459
Medicare Part D claims · 64 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
98.3/100
▲ 15 pts above national avg 83.1 · Exceptional
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
Mary Barchman, M.D. reported a CMS MIPS final score of 98.3/100 - above the 83.1 national average - and filed 459 Medicare Part D claims in 2023.
- 98.3/100
- MIPS score · +15 vs avg
- 459
- Part D claims, 2023
- 88%
- 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.
Mary Barchman, 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
98 Top 11% higher than 89% 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 Mary Barchman, 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, Mary Barchman, M.D. writes more Part D claims than 23% of them and scores higher on MIPS quality than 91% - 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 Mary Barchman, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Mary Barchman, 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 Mary Barchman, M.D.?
High performer (top quartile)Primary specialty
Nephrology Physician
Medicare Part D claims
459 68% vs specialty avg
MIPS final score
98.3/100 15.2 pts vs avg
Specialty distribution in North Carolina
How Nephrology Physician compares to other specialties among North Carolina providers
Medicare quality performance, MIPS
Mary Barchman, M.D.'s 2023 MIPS final score plotted against the Nephrology Physician national average
- MIPS Final Score
- 98.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Nephrology Physician) - 98.3/100 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).
Mary Barchman, M.D. appears in the CMS NPPES registry as a Nephrology Physician provider holding M.D. credentials at 2355 W ARLINGTON BLVD, Greenville, NC, 27834, with a listed phone of (252) 744-2545. NPI 1265439764 was issued on 06/30/2005.
Medicare Part D records for calendar year 2023 show 459 prescription claims written by this provider, covering 64 Medicare beneficiaries and totaling roughly $110K in drug spend, split 12% brand-name and 88% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 98.3/100 for the 2023 performance year (Quality 82.9), 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 | 1265439764 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 06/30/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
98.333
Final Score
Avg: 83.1
82.9398
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Brand vs generic prescribing mix · Typical
Mary Barchman, M.D. - brand share 12.0%
Nephrology Physician average
12% brand-name claims vs 88% generic, on 459 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.
459
Total Claims
$110K
Total Drug Cost
64
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 902
- Total Day Supply
- 26,353
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $98K
- Generic Drug Cost
- $12K
Patient Demographics
- Average Patient Age
- 71.9 years
- Avg HCC Risk Score
- 2.47
- Gender Split
- 61% female / 39% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mary Barchman, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Carvedilol
Carvedilol
35 claims
- Bumetanide
Bumetanide
31 claims
- Amlodipine Besylate
Amlodipine Besylate
29 claims
- Furosemide
Furosemide
27 claims
- Allopurinol
Allopurinol
26 claims
- Valsartan
Valsartan
23 claims
- Tamsulosin Hcl
Tamsulosin Hcl
19 claims
- Lisinopril 13
Lisinopril
13 claims
| Drug | Claims |
|---|---|
| Carvedilol | 35 |
| Bumetanide | 31 |
| Amlodipine Besylate | 29 |
| Furosemide | 27 |
| Allopurinol | 26 |
| Valsartan | 23 |
| Tamsulosin Hcl | 19 |
| Lisinopril | 13 |
| Gabapentin | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How Mary Barchman, 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
Mary Barchman, M.D.'s 459 claims are below the specialty average of 1,454.
Nearby Nephrology Physician Providers in North Carolina
Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as Barchman.
Dr. Sosan Abdullah
MD
Morganton, NC
Dr. Tariq Abo-Kamil
MD
Henderson, NC
Dr. Moses Aboagye-Kumi
M.D.
Fayetteville, NC
Dr. Maureen Achuko
M.D.
Fayetteville, NC
Dr. Patricia Adams
MD
Winston Salem, NC
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 North Carolina 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 Mary Barchman, M.D.'s specialty? ▼
Mary Barchman, M.D. specializes in Nephrology Physician and practices in Greenville, North Carolina. Credentials: M.D..
How much does Mary Barchman, M.D. prescribe under Medicare Part D? ▼
In 2023, Mary Barchman, M.D. wrote 459 Medicare Part D claims totaling $110K in drug costs for 64 beneficiaries.
What is Mary Barchman, M.D.'s Medicare quality score? ▼
Mary Barchman, M.D. has a CMS MIPS Final Score of 98.3/100 (Quality: 82.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Mary Barchman, M.D. located? ▼
Mary Barchman, M.D. is located at 2355 W ARLINGTON BLVD, Greenville, NC, 27834. Phone: (252) 744-2545.
What is Mary Barchman, M.D.'s NPI number? ▼
Mary Barchman, M.D.'s National Provider Identifier (NPI) is 1265439764, issued on 06/30/2005.
Does Mary Barchman, M.D. prescribe more brand-name or generic drugs? ▼
Mary Barchman, M.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $98K 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 Mary Barchman, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Mary Barchman, M.D.'s most frequently prescribed drugs include Carvedilol, Bumetanide, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mary Barchman, M.D. accept Medicare? ▼
Mary Barchman, M.D. appears in CMS Medicare data with 459 Part D claims and 64 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mary Barchman, M.D.'s credentials? ▼
Mary Barchman, M.D.'s NPI is 1265439764 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.