NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1144726399 DO
Verify on CMS → Mariana Keener, DO
Family Medicine Physician in Midlothian, 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 147,760 in Family Medicine 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
641
Medicare Part D claims · 279 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
90%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
62.1/100
▼ 21 pts below national avg 83.5 · Mid-tier
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Mariana Keener, DO reported a CMS MIPS final score of 62.1/100 - below the 83.5 national average - and filed 641 Medicare Part D claims in 2023.
- 62.1/100
- MIPS score · -21 vs avg
- 641
- Part D claims, 2023
- 90%
- 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.
Mariana Keener, DO's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
62 ≥ 6th percentile 6% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Mariana Keener, DO sits
This provider among family medicine physician peers
Across the 21,266 family medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Mariana Keener, DO writes more Part D claims than 28% of them and scores higher on MIPS quality than 8% - placing this provider in the lower-volume, lower-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 family medicine physician peer from a representative sample of 60; the gold marker is Mariana Keener, DO. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Mariana Keener, DO 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 Mariana Keener, DO?
Below national averagePrimary specialty
Family Medicine Physician
Medicare Part D claims
641 81% vs specialty avg
MIPS final score
62.1/100 21.4 pts vs avg
Specialty distribution in Virginia
How Family Medicine Physician compares to other specialties among Virginia providers
Medicare quality performance, MIPS
Mariana Keener, DO's 2023 MIPS final score plotted against the Family Medicine Physician national average
- MIPS Final Score
- 62.1/100
- vs 83.5 national avg · 2023 performance year
MIPS final score (Family Medicine Physician) - 62.1/100 vs national avg 83.5
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).
Mariana Keener, DO appears in the CMS NPPES registry as a Family Medicine Physician provider holding DO credentials at 1520 HUGUENOT RD STE 114, Midlothian, VA, 23113, with a listed phone of (804) 415-7462. NPI 1144726399 was issued on 04/04/2018.
Medicare Part D records for calendar year 2023 show 641 prescription claims written by this provider, covering 279 Medicare beneficiaries and totaling roughly $21K in drug spend, split 7% brand-name and 90% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 62.1/100 for the 2023 performance year (Quality 72.4, Cost 84.7), compared with the 83.5 average among clinicians with a measured score.
Family Medicine Physician is a high-volume specialty nationwide, with 147,760 enrolled providers across 56 states and an average of 3,418 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 | 1144726399 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | DO |
| Gender | Female |
| NPI Issued | 04/04/2018 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
62.1316
Final Score
Measured-score avg: 83.5
72.4397
Quality
84.6656
Cost
0
Promoting Interoperability
Reporting: Group practice
Brand vs generic prescribing mix · Generic-heavy
Mariana Keener, DO - brand share 7.0%
Family Medicine Physician average
7% brand-name claims vs 90% generic, on 641 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.
641
Total Claims
$21K
Total Drug Cost
279
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,003
- Total Day Supply
- 22,478
- Brand vs Generic
- 7% brand / 90% generic
- Brand Drug Cost
- $12K
- Generic Drug Cost
- $9K
- Antibiotic Claims
- 177
Patient Demographics
- Average Patient Age
- 70.8 years
- Avg HCC Risk Score
- 0.98
- Gender Split
- 68% female / 32% male
- Age Distribution
- <65: 29, 65-74: 160, 75-84: 79, 85+: 11
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mariana Keener, DO prescribes most
Top Medicare Part D drugs by claim count, 2023
- Doxycycline Hyclate
Doxycycline Hyclate
67 claims
- Methylprednisolone
Methylprednisolone
45 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
44 claims
- Amlodipine Besylate
Amlodipine Besylate
27 claims
- Atorvastatin Calcium 25
Atorvastatin Calcium
25 claims
- Cefuroxime 21
Cefuroxime
21 claims
- Lisinopril 17
Lisinopril
17 claims
- Cyclobenzaprine Hcl 15
Cyclobenzaprine Hcl
15 claims
| Drug | Claims |
|---|---|
| Doxycycline Hyclate | 67 |
| Methylprednisolone | 45 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 44 |
| Amlodipine Besylate | 27 |
| Atorvastatin Calcium | 25 |
| Cefuroxime Cefuroxime Axetil | 21 |
| Lisinopril | 17 |
| Cyclobenzaprine Hcl | 15 |
| Triamcinolone Acetonide | 14 |
| Paxlovid (Eua) Nirmatrelvir/Ritonavir | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Mariana Keener, DO fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Mariana Keener, DO's 641 claims are below the specialty average of 3,418.
Nearby Family Medicine Physician Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Keener.
Dr. Maureen Aaron
M.D.
Martinsville, VA
Dr. Marianne Abadam
DO
Hampton, VA
Dr. Linda Abbey
M.D.
Richmond, VA
Dr. David Abbot
MD
Vienna, VA
Dr. James Abbott
M.D.
Richmond, VA
Compare Family Medicine 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 Family Medicine 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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Medical Specialties Explained
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Understanding Medicare Claims Data
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Frequently Asked Questions
What is Mariana Keener, DO's specialty? ▼
Mariana Keener, DO specializes in Family Medicine Physician and practices in Midlothian, Virginia. Credentials: DO.
How much does Mariana Keener, DO prescribe under Medicare Part D? ▼
In 2023, Mariana Keener, DO wrote 641 Medicare Part D claims totaling $21K in drug costs for 279 beneficiaries.
What is Mariana Keener, DO's Medicare quality score? ▼
Mariana Keener, DO has a CMS MIPS Final Score of 62.1/100 (Quality: 72.4, Cost: 84.7). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Mariana Keener, DO located? ▼
Mariana Keener, DO is located at 1520 HUGUENOT RD STE 114, Midlothian, VA, 23113. Phone: (804) 415-7462.
What is Mariana Keener, DO's NPI number? ▼
Mariana Keener, DO's National Provider Identifier (NPI) is 1144726399, issued on 04/04/2018.
Does Mariana Keener, DO prescribe more brand-name or generic drugs? ▼
Mariana Keener, DO's prescribing is 7% brand-name and 90% generic drugs by claim count, with $12K in brand drug costs.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Mariana Keener, DO prescribe most often? ▼
Based on 2023 Medicare Part D data, Mariana Keener, DO's most frequently prescribed drugs include Doxycycline Hyclate, Methylprednisolone, Amoxicillin-Clavulanate Potass. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mariana Keener, DO accept Medicare? ▼
Mariana Keener, DO appears in CMS Medicare data with 641 Part D claims and 279 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mariana Keener, DO's credentials? ▼
Mariana Keener, DO's NPI is 1144726399 with credentials DO. 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
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.