NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1205870771 MD
Verify on CMS → David Nerness, MD
Family Medicine Physician in Morristown, Tennessee.
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
4K
Medicare Part D claims · 991 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
78/100
▼ 5 pts below national avg 83.5 · Above neutral
Industry payments
$743.87
52 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
David Nerness, MD reported a CMS MIPS final score of 78/100 - below the 83.5 national average - and filed 4,145 Medicare Part D claims in 2023.
- 78/100
- MIPS score · -5 vs avg
- 4K
- Part D claims, 2023
- 86%
- 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.
CMS NPPES provider registry desk
NPI 1205870771 · Family Medicine Physician
NPI-10 · ENUM-LEGACY · TAX-MEGA · MIPS-BELOW · RX-MID · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1205870771
- ENUM-LEGACY 2006
- TAX-MEGA 148K Family Medicine
- MIPS-BELOW 78/100
- RX-MID 4,145
- BOOK-LIGHT 2,533 in Tennessee
- PHOTO-FINISH Valeria Baldivieso · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Nerness · this p…
Nerness · this provider
78 MIPS pts
- Isaiah Cochran ·…
Isaiah Cochran
78 MIPS pts
- Valeria Baldivie…
Valeria Baldivieso
78 MIPS pts
- Tapan Bhatt · near
Tapan Bhatt
78 MIPS pts
- Daniel Cochran ·…
Daniel Cochran
78 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
David Nerness, MD'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.
78 ≥ 23rd percentile 23% 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 David Nerness, MD 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, David Nerness, MD writes more Part D claims than 62% of them and scores higher on MIPS quality than 23% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one family medicine physician peer from a representative sample of 60; the gold marker is David Nerness, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
David Nerness, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 4 hospital affiliations - 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 David Nerness, MD?
Below national averagePrimary specialty
Family Medicine Physician
Medicare Part D claims
4,145 21% vs specialty avg
MIPS final score
78/100 5.5 pts vs avg
Specialty distribution in Tennessee
How Family Medicine Physician compares to other specialties among Tennessee providers
Medicare quality performance, MIPS
David Nerness, MD's 2023 MIPS final score plotted against the Family Medicine Physician national average
- MIPS Final Score
- 78/100
- vs 83.5 national avg · 2023 performance year
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).
Practice Address
Provider Details
| NPI | 1205870771 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/15/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
78.0121
Final Score
Measured-score avg: 83.5
57.5188
Quality
69.1882
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where David Nerness, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
According to CMS billing records, David Nerness, MD is affiliated with 4 Medicare-billing facilities across 2 states.
Ability Health Services And Rehabilitation LP
Sanford, FL
Ability Health Services, Inc
Sanford, FL
Covenant Medical Group Inc
Morristown, TN
State OF Franklin Healthcare Associates, PLLC
Greeneville, TN
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 David Nerness, MD. Source: openpaymentsdata.cms.gov.
Total received
$744
Largest payer
ABBVIE 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
David Nerness, MD - brand share 14.0%
Family Medicine Physician average
14% brand-name claims vs 86% generic, on 4,145 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.
4,145
Total Claims
$379K
Total Drug Cost
991
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 9,533
- Total Day Supply
- 274,059
- Brand vs Generic
- 14% brand / 86% generic
- Brand Drug Cost
- $306K
- Generic Drug Cost
- $69K
- Opioid Claims
- 78 (1.9% rate)
- Antibiotic Claims
- 197
Patient Demographics
- Average Patient Age
- 73.0 years
- Avg HCC Risk Score
- 1.12
- Gender Split
- 49% female / 51% male
- Age Distribution
- <65: 84, 65-74: 514, 75-84: 316, 85+: 77
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What David Nerness, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
244 claims
- Amlodipine Besylate
Amlodipine Besylate
201 claims
- Atorvastatin Calcium
Atorvastatin Calcium
191 claims
- Losartan Potassium
Losartan Potassium
174 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
131 claims
- Lisinopril
Lisinopril
126 claims
- Metformin Hcl 88
Metformin Hcl
88 claims
- Tamsulosin Hcl 73
Tamsulosin Hcl
73 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 244 |
| Amlodipine Besylate | 201 |
| Atorvastatin Calcium | 191 |
| Losartan Potassium | 174 |
| Rosuvastatin Calcium | 131 |
| Lisinopril | 126 |
| Metformin Hcl | 88 |
| Tamsulosin Hcl | 73 |
| Gabapentin | 66 |
| Alprazolam | 64 |
* 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 David Nerness, MD 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
David Nerness, MD's 4,145 claims are above the specialty average of 3,418.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Nerness, both outside Tennessee so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (78 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Medicine Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Nerness.
One of 2,533 Family Medicine Physician providers enrolled in Tennessee, 5 are shown here.
Dr. John Aaron
MD
Clarksville, TN
Dr. Rebecca Aaron
MD
Clarksville, TN
Dr. Richard Aasheim
M.D.
Greeneville, TN
Dr. Julia Abraham
MD
Knoxville, TN
Dr. Sydney Abramson
MD
Murfreesboro, TN
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is David Nerness, MD's specialty? ▼
David Nerness, MD specializes in Family Medicine Physician and practices in Morristown, Tennessee. Credentials: MD.
How much does David Nerness, MD prescribe under Medicare Part D? ▼
In 2023, David Nerness, MD wrote 4,145 Medicare Part D claims totaling $379K in drug costs for 991 beneficiaries.
What is David Nerness, MD's Medicare quality score? ▼
David Nerness, MD has a CMS MIPS Final Score of 78/100 (Quality: 57.5, Cost: 69.2). 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 David Nerness, MD located? ▼
David Nerness, MD is located at 653 MERCHANTS GREENE BLVD STE 201, Morristown, TN, 37813. Phone: (423) 492-6700.
What is David Nerness, MD's NPI number? ▼
David Nerness, MD's National Provider Identifier (NPI) is 1205870771, issued on 06/15/2006.
Does David Nerness, MD prescribe more brand-name or generic drugs? ▼
David Nerness, MD's prescribing is 14% brand-name and 86% generic drugs by claim count, with $306K in brand drug costs.
Does David Nerness, MD prescribe opioids? ▼
Yes, David Nerness, MD had 78 opioid claims in 2023 with an opioid prescribing rate of 1.9%.
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 David Nerness, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, David Nerness, MD's most frequently prescribed drugs include Levothyroxine Sodium, Amlodipine Besylate, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Nerness, MD accept Medicare? ▼
David Nerness, MD appears in CMS Medicare data with 4,145 Part D claims and 991 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Nerness, MD's credentials? ▼
David Nerness, MD's NPI is 1205870771 with credentials MD. 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.