NPI registry status
Active
2026 NPPES data Orthopaedic Surgery Physician NPI 1558327395 MD
Verify on CMS → Marc Aiken, MD
Orthopaedic Surgery Physician in Johnson City, 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 25,781 in Orthopaedic Surgery 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
923
Medicare Part D claims · 320 beneficiaries · Orthopaedic Surgery Physician avg: 324
Generic prescribing
98%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
84.2/100
▲ 1 pts above national avg 83.1 · Above neutral
Industry payments
$3.4K
6 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
Marc Aiken, MD reported a CMS MIPS final score of 84.2/100 - above the 83.1 national average - and filed 923 Medicare Part D claims in 2023.
- 84.2/100
- MIPS score · +1 vs avg
- 923
- Part D claims, 2023
- 98%
- 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.
Marc Aiken, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
84 45th percentile higher than 45% 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 Marc Aiken, MD sits
This provider among orthopaedic surgery physician peers
Across the 8,194 orthopaedic surgery physician providers who report both Medicare Part D prescribing and a MIPS quality score, Marc Aiken, MD writes more Part D claims than 88% of them and scores higher on MIPS quality than 58% - placing this provider in the high-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 orthopaedic surgery physician peer from a representative sample of 60; the gold marker is Marc Aiken, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Marc Aiken, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - 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 Marc Aiken, MD?
Near national averagePrimary specialty
Orthopaedic Surgery Physician
Medicare Part D claims
923 185% vs specialty avg
MIPS final score
84.2/100 1.1 pts vs avg
Specialty distribution in Tennessee
How Orthopaedic Surgery Physician compares to other specialties among Tennessee providers
Medicare quality performance, MIPS
Marc Aiken, MD's 2023 MIPS final score plotted against the Orthopaedic Surgery Physician national average
- MIPS Final Score
- 84.2/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Orthopaedic Surgery Physician) - 84.2/100 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).
Marc Aiken, MD appears in the CMS NPPES registry as a Orthopaedic Surgery Physician provider holding MD credentials at 2410 SUSANNAH ST, Johnson City, TN, 37601, with a listed phone of (423) 282-9011. NPI 1558327395 was issued on 04/21/2006.
Medicare Part D records for calendar year 2023 show 923 prescription claims written by this provider, covering 320 Medicare beneficiaries and totaling roughly $7K in drug spend, split 2% brand-name and 98% generic by claim count, with an opioid prescribing rate of 17.0%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 84.2/100 for the 2023 performance year (Quality 58.2, Cost 100), compared with the national average of 83.1.
Orthopaedic Surgery Physician is a mid-sized specialty nationwide, with 25,781 enrolled providers across 56 states and an average of 324 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 | 1558327395 |
|---|---|
| Specialty | Orthopaedic Surgery Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/21/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
84.2114
Final Score
Avg: 83.1
58.2047
Quality
100
Cost
87
Promoting Interoperability
Reporting: Individual
Hospital and facility affiliations
Facilities where Marc Aiken, 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.
Watauga Orthopaedics PLC
Johnson City, 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 Marc Aiken, MD. Source: openpaymentsdata.cms.gov.
Total received
$3.4K
Largest payer
Synthes GmbH
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 · Generic-heavy
Marc Aiken, MD - brand share 2.0%
Orthopaedic Surgery Physician average
2% brand-name claims vs 98% generic, on 923 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.
923
Total Claims
$7K
Total Drug Cost
320
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,092
- Total Day Supply
- 23,572
- Brand vs Generic
- 2% brand / 98% generic
- Brand Drug Cost
- $2K
- Generic Drug Cost
- $5K
- Opioid Claims
- 157 (17.0% rate)
- Antibiotic Claims
- 87
Patient Demographics
- Average Patient Age
- 72.5 years
- Avg HCC Risk Score
- 1.21
- Gender Split
- 70% female / 30% male
- Age Distribution
- <65: 28, 65-74: 172, 75-84: 97, 85+: 23
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Marc Aiken, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Meloxicam
Meloxicam
492 claims
- Methylprednisolone 107
Methylprednisolone
107 claims
- Oxycodone-Acetamin… 87
Oxycodone-Acetaminophen
87 claims
- Amoxicillin 55
Amoxicillin
55 claims
- Celecoxib 35
Celecoxib
35 claims
- Hydrocodone-Acetam… 35
Hydrocodone-Acetaminophen
35 claims
- Tramadol Hcl 33
Tramadol Hcl
33 claims
- Clindamycin Hcl 18
Clindamycin Hcl
18 claims
| Drug | Claims |
|---|---|
| Meloxicam | 492 |
| Methylprednisolone | 107 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 87 |
| Amoxicillin | 55 |
| Celecoxib | 35 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 35 |
| Tramadol Hcl | 33 |
| Clindamycin Hcl | 18 |
| Nabumetone | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Orthopaedic Surgery Physician Overview
How Marc Aiken, MD fits within the Orthopaedic Surgery Physician landscape nationally.
25,781
Orthopaedic Surgery Physician Providers in US
56
States with Orthopaedic Surgery Physician
324
Avg Claims per Provider
Marc Aiken, MD's 923 claims are above the specialty average of 324.
Nearby Orthopaedic Surgery Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Aiken.
Dr. Amir Abtahi
M.D.
Nashville, TN
Dr. Kyle Achors
M.D.
Knoxville, TN
Dr. Colin Ackerman
MD
Germantown, TN
Dr. Jeffrey Adams
M.D.
Columbia, TN
Dr. Merritt Adams
M.D
Chattanooga, TN
Compare Orthopaedic Surgery 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 Tennessee medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Orthopaedic Surgery 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 Tennessee
Frequently Asked Questions
What is Marc Aiken, MD's specialty? ▼
Marc Aiken, MD specializes in Orthopaedic Surgery Physician and practices in Johnson City, Tennessee. Credentials: MD.
How much does Marc Aiken, MD prescribe under Medicare Part D? ▼
In 2023, Marc Aiken, MD wrote 923 Medicare Part D claims totaling $7K in drug costs for 320 beneficiaries.
What is Marc Aiken, MD's Medicare quality score? ▼
Marc Aiken, MD has a CMS MIPS Final Score of 84.2/100 (Quality: 58.2, Cost: 100). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Marc Aiken, MD located? ▼
Marc Aiken, MD is located at 2410 SUSANNAH ST, Johnson City, TN, 37601. Phone: (423) 282-9011.
What is Marc Aiken, MD's NPI number? ▼
Marc Aiken, MD's National Provider Identifier (NPI) is 1558327395, issued on 04/21/2006.
Does Marc Aiken, MD prescribe more brand-name or generic drugs? ▼
Marc Aiken, MD's prescribing is 2% brand-name and 98% generic drugs by claim count, with $2K in brand drug costs.
Does Marc Aiken, MD prescribe opioids? ▼
Yes, Marc Aiken, MD had 157 opioid claims in 2023 with an opioid prescribing rate of 17.0%.
How many Orthopaedic Surgery Physician providers are there in the US? ▼
There are 25,781 Orthopaedic Surgery Physician providers across 56 states in the US. The average Orthopaedic Surgery Physician provider writes 324 Medicare Part D claims per year.
What drugs does Marc Aiken, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Marc Aiken, MD's most frequently prescribed drugs include Meloxicam, Methylprednisolone, Oxycodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Marc Aiken, MD accept Medicare? ▼
Marc Aiken, MD appears in CMS Medicare data with 923 Part D claims and 320 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Marc Aiken, MD's credentials? ▼
Marc Aiken, MD's NPI is 1558327395 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
Compiled from official public sources by the PlainDoctor editorial team.