NPI registry status
Active
2026 NPPES data Rheumatology Physician NPI 1356461024 MD
Verify on CMS → Tim Bongartz, MD
Rheumatology Physician in Nashville, 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 6,377 in Rheumatology 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
38
Medicare Part D claims · 23 beneficiaries · Rheumatology Physician avg: 2K
MIPS score
97.1/100
▲ 14 pts above national avg 83.5 · Exceptional
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Tim Bongartz, MD reported a CMS MIPS final score of 97.1/100 - above the 83.5 national average - and filed 38 Medicare Part D claims in 2024.
- 97.1/100
- MIPS score · +14 vs avg
- 38
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥84th
- pct among measured MIPS (lower-bound band)
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 Tim Bongartz, MD
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 1356461024), first enumerated 03/29/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 38 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 97.1/100 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
- 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 1356461024 · Rheumatology Physician
NPI-10 · ENUM-MID · TAX-MID · MIPS-ELITE · RX-TRACE · BOOK-THIN · PHOTO-FINISH
- NPI-10 1356461024
- ENUM-MID 2007
- TAX-MID 6K Rheumatology Physician
- MIPS-ELITE 97.1/100
- RX-TRACE 38
- BOOK-THIN 113 in Tennessee
- PHOTO-FINISH Rafah Salloum · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Maria Abruzzo · …
Maria Abruzzo
97 MIPS pts
- Bongartz · this …
Bongartz · this provider
97.1 MIPS pts
- Rafah Salloum · …
Rafah Salloum
97.1 MIPS pts
- Marianne Santion…
Marianne Santioni
97.2 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Tim Bongartz, 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.
97 ≥ 84th percentile 84% 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 Tim Bongartz, MD sits
This provider among rheumatology physician peers
Across the 1,970 rheumatology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Tim Bongartz, MD writes more Part D claims than 1% of them and scores higher on MIPS quality than 84% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one rheumatology physician peer from a representative sample of 60; the gold marker is Tim Bongartz, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Tim Bongartz, 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 Tim Bongartz, MD?
High performer (top quartile)Primary specialty
Rheumatology Physician
Medicare Part D claims
38 98% vs specialty avg
MIPS final score
97.1/100 13.6 pts vs avg
Specialty distribution in Tennessee
How Rheumatology Physician compares to other specialties among Tennessee providers
Medicare quality performance, MIPS
Tim Bongartz, MD's 2023 MIPS final score plotted against the Rheumatology Physician national average
- MIPS Final Score
- 97.1/100
- 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 | 1356461024 |
|---|---|
| Specialty | Rheumatology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 03/29/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
97.1279
Final Score
Measured-score avg: 83.5
85.6458
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Tim Bongartz, 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.
Vanderbilt University Medical Center
★★★★★ 5/5
Nashville, TN
Acute Care Hospitals
CMS CCN: 440039
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
38
Total Claims
$260
Total Drug Cost
23
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 38
- Total Day Supply
- 562
- Brand Drug Cost
- $0
- Generic Drug Cost
- $260
Patient Demographics
- Average Patient Age
- 69.3 years
- Avg HCC Risk Score
- 2.11
Rheumatology Physician Overview
How Tim Bongartz, MD fits within the Rheumatology Physician landscape nationally.
6,377
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,058
Avg Claims per Provider
Tim Bongartz, MD's 38 claims are below the specialty average of 2,058.
Nationwide Rheumatology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Bongartz, both outside Tennessee so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (97.1 here).
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Rheumatology Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Bongartz.
One of 113 Rheumatology Physician providers enrolled in Tennessee, 5 are shown here.
Dr. Mishal Abdullah
M.D.
Knoxville, TN
Dr. Annette Abril
M.D.
Kingsport, TN
Dr. Iman Abutineh
MD
Memphis, TN
Dr. Titilola Akhigbe
M.D
Memphis, TN
Dr. Mohammad Ali
M.D
Hendersonville, TN
Compare Rheumatology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Tim Bongartz, MD's specialty? ▼
Tim Bongartz, MD specializes in Rheumatology Physician and practices in Nashville, Tennessee. Credentials: MD.
How much does Tim Bongartz, MD prescribe under Medicare Part D? ▼
In 2024, Tim Bongartz, MD wrote 38 Medicare Part D claims totaling $260 in drug costs for 23 beneficiaries.
What is Tim Bongartz, MD's Medicare quality score? ▼
Tim Bongartz, MD has a CMS MIPS Final Score of 97.1/100 (Quality: 85.6). 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 Tim Bongartz, MD located? ▼
Tim Bongartz, MD is located at 3601 THE VANDERBILT CLINIC, Nashville, TN, 37232. Phone: (615) 936-2000.
What is Tim Bongartz, MD's NPI number? ▼
Tim Bongartz, MD's National Provider Identifier (NPI) is 1356461024, issued on 03/29/2007.
How many Rheumatology Physician providers are there in the US? ▼
There are 6,377 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,058 Medicare Part D claims per year.
Does Tim Bongartz, MD accept Medicare? ▼
Tim Bongartz, MD appears in CMS Medicare data with 38 Part D claims and 23 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Tim Bongartz, MD's credentials? ▼
Tim Bongartz, MD's NPI is 1356461024 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 (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.