NPI registry status
Active
2026 NPPES data Ophthalmology Physician NPI 1417007691 M.D.
Verify on CMS → Rex Yannis, M.D.
Ophthalmology Physician in Chattanooga, 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 22,388 in Ophthalmology 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
459
Medicare Part D claims · 212 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
70.3/100
▼ 13 pts below national avg 83.5 · Mid-tier
Industry payments
$306.87
16 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Rex Yannis, M.D. reported a CMS MIPS final score of 70.3/100 - below the 83.5 national average - and filed 459 Medicare Part D claims in 2024.
- 70.3/100
- MIPS score · -13 vs avg
- 459
- Part D claims, 2024
- 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.
Federal trust snapshot
What official records show about Rex Yannis, M.D.
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1417007691), first enumerated 01/11/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 459 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 70.3/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$306.87 in reported industry payments (16 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1417007691 · Ophthalmology Physician
NPI-10 · ENUM-MID · TAX-MID · MIPS-LOW · RX-LIGHT · BOOK-THIN · PHOTO-FINISH
- NPI-10 1417007691
- ENUM-MID 2007
- TAX-MID 22K Ophthalmology Physician
- MIPS-LOW 70.3/100
- RX-LIGHT 459
- BOOK-THIN 383 in Tennessee
- PHOTO-FINISH Irina Belinsky, M.D. · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Saira Choudhri, …
Saira Choudhri, M.D.
70.2 MIPS pts
- Yannis · this pr…
Yannis · this provider
70.3 MIPS pts
- Irina Belinsky, …
Irina Belinsky, M.D.
70.3 MIPS pts
- Todd Jackson, M.…
Todd Jackson, M.D.
70.3 MIPS pts
- Nathan Mathews, …
Nathan Mathews, MD
70.3 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Rex Yannis, M.D.'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.
70 ≥ 9th percentile 9% 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 Rex Yannis, M.D. sits
This provider among ophthalmology physician peers
Across the 8,767 ophthalmology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Rex Yannis, M.D. writes more Part D claims than 25% of them and scores higher on MIPS quality than 11% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one ophthalmology physician peer from a representative sample of 60; the gold marker is Rex Yannis, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Rex Yannis, M.D. 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 Rex Yannis, M.D.?
Below national averagePrimary specialty
Ophthalmology Physician
Medicare Part D claims
459 69% vs specialty avg
MIPS final score
70.3/100 13.2 pts vs avg
Specialty distribution in Tennessee
How Ophthalmology Physician compares to other specialties among Tennessee providers
Medicare quality performance, MIPS
Rex Yannis, M.D.'s 2023 MIPS final score plotted against the Ophthalmology Physician national average
- MIPS Final Score
- 70.3/100
- 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 | 1417007691 |
|---|---|
| Specialty | Ophthalmology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 01/11/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
70.25
Final Score
Measured-score avg: 83.5
65
Promoting Interoperability
Reporting: Individual
Hospital and facility affiliations
Facilities where Rex Yannis, M.D. 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.
Southeast Eye Specialists PLLC
Chattanooga, 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 Rex Yannis, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$307
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
Rex Yannis, M.D. - brand share 14.0%
Ophthalmology Physician average
14% brand-name claims vs 86% generic, on 459 2024 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 2024.
459
Total Claims
$551K
Total Drug Cost
212
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 459.533
- Total Day Supply
- 6,330
- Brand vs Generic
- 14% brand / 86% generic
- Brand Drug Cost
- $545K
- Generic Drug Cost
- $6K
Patient Demographics
- Average Patient Age
- 74.6 years
- Avg HCC Risk Score
- 1.03
- Gender Split
- 56% female / 44% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Rex Yannis, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Erythromycin
Erythromycin
192 claims
- Tobramycin-Dexamet… 73
Tobramycin-Dexamethasone
73 claims
- Ondansetron Odt 71
Ondansetron Odt
71 claims
- Bacitracin-Polymyxin 32
Bacitracin-Polymyxin
32 claims
- Xiidra 15
Xiidra
15 claims
| Drug | Claims |
|---|---|
| Erythromycin Erythromycin Base | 192 |
| Tobramycin-Dexamethasone Tobramycin/Dexamethasone | 73 |
| Ondansetron Odt Ondansetron | 71 |
| Bacitracin-Polymyxin Bacitracin/Polymyxin B Sulfate | 32 |
| Xiidra Lifitegrast | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Ophthalmology Physician Overview
How Rex Yannis, M.D. fits within the Ophthalmology Physician landscape nationally.
22,388
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,490
Avg Claims per Provider
Rex Yannis, M.D.'s 459 claims are below the specialty average of 1,490.
Nationwide Ophthalmology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Yannis, both outside Tennessee so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (70.3 here).
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Ophthalmology Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Yannis.
One of 383 Ophthalmology Physician providers enrolled in Tennessee, 5 are shown here.
Dr. Brent Aebi
M.D.
Bristol, TN
Khandaker Ahad
Murfreesboro, TN
Dr. Harold Akin
MD
Murfreesboro, TN
Dr. Nancy Alison
M.D.
Johnson City, TN
Dr. Mitchell Allphin
MD
Nashville, TN
Compare Ophthalmology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Rex Yannis, M.D.'s specialty? ▼
Rex Yannis, M.D. specializes in Ophthalmology Physician and practices in Chattanooga, Tennessee. Credentials: M.D..
How much does Rex Yannis, M.D. prescribe under Medicare Part D? ▼
In 2024, Rex Yannis, M.D. wrote 459 Medicare Part D claims totaling $551K in drug costs for 212 beneficiaries.
What is Rex Yannis, M.D.'s Medicare quality score? ▼
Rex Yannis, M.D. has a CMS MIPS Final Score of 70.3/100. 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 Rex Yannis, M.D. located? ▼
Rex Yannis, M.D. is located at 7268 JARNIGAN RD, Chattanooga, TN, 37421. Phone: (423) 508-7337.
What is Rex Yannis, M.D.'s NPI number? ▼
Rex Yannis, M.D.'s National Provider Identifier (NPI) is 1417007691, issued on 01/11/2007.
Does Rex Yannis, M.D. prescribe more brand-name or generic drugs? ▼
Rex Yannis, M.D.'s prescribing is 14% brand-name and 86% generic drugs by claim count, with $545K in brand drug costs.
How many Ophthalmology Physician providers are there in the US? ▼
There are 22,388 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,490 Medicare Part D claims per year.
What drugs does Rex Yannis, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Rex Yannis, M.D.'s most frequently prescribed drugs include Erythromycin, Tobramycin-Dexamethasone, Ondansetron Odt. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Rex Yannis, M.D. accept Medicare? ▼
Rex Yannis, M.D. appears in CMS Medicare data with 459 Part D claims and 212 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Rex Yannis, M.D.'s credentials? ▼
Rex Yannis, M.D.'s NPI is 1417007691 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.