NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1821171067 M.D.
Verify on CMS → Michael Berkoben, M.D.
Nephrology Physician in Durham, 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
868
Medicare Part D claims · 93 beneficiaries · Nephrology Physician avg: 1K
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Michael Berkoben, M.D. filed 868 Medicare Part D claims in 2023 as a Nephrology Physician in Durham, North Carolina.
- 868
- Part D claims, 2023
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.
Michael Berkoben, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
868 Top 27% higher than 73% 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-eligible specialty (heuristic, not verified)
Michael Berkoben, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Michael Berkoben, M.D.?
Quality data not reportedPrimary specialty
Nephrology Physician
Medicare Part D claims
868 40% vs specialty avg
Specialty distribution in North Carolina
How Nephrology Physician compares to other specialties among North Carolina 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 Nephrology 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).
Michael Berkoben, M.D. appears in the CMS NPPES registry as a Nephrology Physician provider holding M.D. credentials at DUKE UNIVERSITY MEDICAL CTR, Durham, NC, 27710, with a listed phone of (919) 620-4467. NPI 1821171067 was issued on 10/23/2006.
Medicare Part D records for calendar year 2023 show 868 prescription claims written by this provider, covering 93 Medicare beneficiaries and totaling roughly $69K in drug spend.
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 | 1821171067 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 10/23/2006 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
868
Total Claims
$69K
Total Drug Cost
93
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,660
- Total Day Supply
- 49,347
- Generic Drug Cost
- $35K
Patient Demographics
- Average Patient Age
- 71.8 years
- Avg HCC Risk Score
- 3.33
- Gender Split
- 49% female / 51% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Michael Berkoben, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Chlorthalidone
Chlorthalidone
128 claims
- Amlodipine Besylate
Amlodipine Besylate
127 claims
- Sevelamer Carbonate 45
Sevelamer Carbonate
45 claims
- Prednisone 44
Prednisone
44 claims
- Lisinopril 43
Lisinopril
43 claims
- Metoprolol Tartrate 42
Metoprolol Tartrate
42 claims
- Furosemide 41
Furosemide
41 claims
- Losartan Potassium 36
Losartan Potassium
36 claims
| Drug | Claims |
|---|---|
| Chlorthalidone | 128 |
| Amlodipine Besylate | 127 |
| Sevelamer Carbonate | 45 |
| Prednisone | 44 |
| Lisinopril | 43 |
| Metoprolol Tartrate | 42 |
| Furosemide | 41 |
| Losartan Potassium | 36 |
| Spironolactone | 29 |
| Carvedilol | 28 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How Michael Berkoben, 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
Michael Berkoben, M.D.'s 868 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 Berkoben.
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.
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 North Carolina
Frequently Asked Questions
What is Michael Berkoben, M.D.'s specialty? ▼
Michael Berkoben, M.D. specializes in Nephrology Physician and practices in Durham, North Carolina. Credentials: M.D..
How much does Michael Berkoben, M.D. prescribe under Medicare Part D? ▼
In 2023, Michael Berkoben, M.D. wrote 868 Medicare Part D claims totaling $69K in drug costs for 93 beneficiaries.
Where is Michael Berkoben, M.D. located? ▼
Michael Berkoben, M.D. is located at DUKE UNIVERSITY MEDICAL CTR, Durham, NC, 27710. Phone: (919) 620-4467.
What is Michael Berkoben, M.D.'s NPI number? ▼
Michael Berkoben, M.D.'s National Provider Identifier (NPI) is 1821171067, issued on 10/23/2006.
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 Michael Berkoben, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Michael Berkoben, M.D.'s most frequently prescribed drugs include Chlorthalidone, Amlodipine Besylate, Sevelamer Carbonate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Michael Berkoben, M.D. accept Medicare? ▼
Michael Berkoben, M.D. appears in CMS Medicare data with 868 Part D claims and 93 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Berkoben, M.D.'s credentials? ▼
Michael Berkoben, M.D.'s NPI is 1821171067 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.