NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1053319426 M.D.
Verify on CMS → Christopher Acker, M.D.
Nephrology Physician in Richmond, 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
1K
Medicare Part D claims · 219 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$111.58
7 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
Christopher Acker, M.D. filed 1,330 Medicare Part D claims in 2023 as a Nephrology Physician in Richmond, Virginia, prescribing 87% generic.
- 1K
- Part D claims, 2023
- 87%
- generic prescribing
- $111.58
- industry payments (Sunshine Act)
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.
Christopher Acker, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,330 Top 21% higher than 79% 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)
Christopher Acker, 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 Christopher Acker, M.D.?
Quality data not reportedPrimary specialty
Nephrology Physician
Medicare Part D claims
1,330 9% vs specialty avg
Specialty distribution in Virginia
How Nephrology Physician compares to other specialties among Virginia 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).
Christopher Acker, M.D. appears in the CMS NPPES registry as a Nephrology Physician provider holding M.D. credentials at 671 HIOAKS RD, Richmond, VA, 23225, with a listed phone of (804) 272-5814. NPI 1053319426 was issued on 07/11/2005.
Medicare Part D records for calendar year 2023 show 1,330 prescription claims written by this provider, covering 219 Medicare beneficiaries and totaling roughly $225K in drug spend, split 13% brand-name and 87% generic by claim count.
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 | 1053319426 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 07/11/2005 |
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 Christopher Acker, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$112
Largest payer
Amgen 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
Christopher Acker, M.D. - brand share 13.0%
Nephrology Physician average
13% brand-name claims vs 87% generic, on 1,330 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.
1,330
Total Claims
$225K
Total Drug Cost
219
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,798
- Total Day Supply
- 82,233
- Brand vs Generic
- 13% brand / 87% generic
- Brand Drug Cost
- $187K
- Generic Drug Cost
- $37K
- Antibiotic Claims
- 14
Patient Demographics
- Average Patient Age
- 73.6 years
- Avg HCC Risk Score
- 3.22
- Gender Split
- 49% female / 51% male
- Age Distribution
- <65: 21, 65-74: 97, 75-84: 73, 85+: 28
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Christopher Acker, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Spironolactone
Spironolactone
257 claims
- Amlodipine Besylate
Amlodipine Besylate
149 claims
- Losartan Potassium 94
Losartan Potassium
94 claims
- Carvedilol 76
Carvedilol
76 claims
- Furosemide 70
Furosemide
70 claims
- Farxiga 46
Farxiga
46 claims
- Velphoro 31
Velphoro
31 claims
- Lisinopril 30
Lisinopril
30 claims
| Drug | Claims |
|---|---|
| Spironolactone | 257 |
| Amlodipine Besylate | 149 |
| Losartan Potassium | 94 |
| Carvedilol | 76 |
| Furosemide | 70 |
| Farxiga Dapagliflozin Propanediol | 46 |
| Velphoro Sucroferric Oxyhydroxide | 31 |
| Lisinopril | 30 |
| Sevelamer Carbonate | 28 |
| Enalapril Maleate | 26 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How Christopher Acker, 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
Christopher Acker, M.D.'s 1,330 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 Acker.
Dr. Mark Aarons
M.D.
Arlington, VA
Emaad Abdel-Rahman
Charlottesville, VA
Dr. Walid Abou Assi
M.D.
Richmond, VA
Dr. Oscar Adler
M.D., PHD
Leesburg, VA
Dr. Haidr Agha
M.D.
Virginia Beach, 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 Christopher Acker, M.D.'s specialty? ▼
Christopher Acker, M.D. specializes in Nephrology Physician and practices in Richmond, Virginia. Credentials: M.D..
How much does Christopher Acker, M.D. prescribe under Medicare Part D? ▼
In 2023, Christopher Acker, M.D. wrote 1,330 Medicare Part D claims totaling $225K in drug costs for 219 beneficiaries.
Where is Christopher Acker, M.D. located? ▼
Christopher Acker, M.D. is located at 671 HIOAKS RD, Richmond, VA, 23225. Phone: (804) 272-5814.
What is Christopher Acker, M.D.'s NPI number? ▼
Christopher Acker, M.D.'s National Provider Identifier (NPI) is 1053319426, issued on 07/11/2005.
Does Christopher Acker, M.D. prescribe more brand-name or generic drugs? ▼
Christopher Acker, M.D.'s prescribing is 13% brand-name and 87% generic drugs by claim count, with $187K 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 Christopher Acker, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Christopher Acker, M.D.'s most frequently prescribed drugs include Spironolactone, Amlodipine Besylate, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Christopher Acker, M.D. accept Medicare? ▼
Christopher Acker, M.D. appears in CMS Medicare data with 1,330 Part D claims and 219 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christopher Acker, M.D.'s credentials? ▼
Christopher Acker, M.D.'s NPI is 1053319426 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.