NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1801025820 MD
Verify on CMS → Nassif Azzi, MD
Nephrology Physician in Hermitage, 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 10,569 in Nephrology 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
1K
Medicare Part D claims · 172 beneficiaries · Nephrology Physician avg: 1K
Industry payments
$6.16
2 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Nassif Azzi, MD filed 1,069 Medicare Part D claims in 2023 as a Nephrology Physician in Hermitage, Tennessee.
- 1K
- Part D claims, 2023
- Likely
- board-certified (heuristic)
- ≥76th
- pct by Part D claim volume (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 Nassif Azzi, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1801025820), first enumerated 07/11/2009.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,069 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- 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
$6.16 in reported industry payments (2 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 1801025820 · Nephrology Physician
NPI-10 · ENUM-MID · TAX-MID · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1801025820
- ENUM-MID 2009
- TAX-MID 11K Nephrology Physician
- RX-MID 1,069
- BOOK-THIN 222 in Tennessee
- PHOTO-ENUM Linda Belayev · 2009
Nassif Azzi, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,069 ≥ 76th percentile 76% of 1,370,886 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. 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 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Nassif Azzi, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Nassif Azzi, MD?
Quality data not reportedPrimary specialty
Nephrology Physician
Medicare Part D claims
1,069 26% vs specialty avg
Specialty distribution in Tennessee
How Nephrology Physician compares to other specialties among Tennessee providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Nephrology Physician. Verify directly:
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 | 1801025820 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/11/2009 |
Hospital and facility affiliations
Facilities where Nassif Azzi, 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.
Southern Kidney Specialists PLC
Brentwood, 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 Nassif Azzi, MD. Source: openpaymentsdata.cms.gov.
Total received
$6
Largest payer
Travere Therapeutics, Inc.
Most common payment type
Education
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,069
Total Claims
$137K
Total Drug Cost
172
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,002
- Total Day Supply
- 56,754
- Generic Drug Cost
- $26K
- Antibiotic Claims
- 47
Patient Demographics
- Average Patient Age
- 73.0 years
- Avg HCC Risk Score
- 3.45
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 22, 65-74: 67, 75-84: 64, 85+: 19
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Nassif Azzi, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Allopurinol
Allopurinol
182 claims
- Furosemide
Furosemide
93 claims
- Calcitriol
Calcitriol
73 claims
- Hydralazine Hcl 57
Hydralazine Hcl
57 claims
- Prosol 45
Prosol
45 claims
- Amlodipine Besylate 44
Amlodipine Besylate
44 claims
- Calcium Acetate 42
Calcium Acetate
42 claims
- Hydrochlorothiazide 42
Hydrochlorothiazide
42 claims
| Drug | Claims |
|---|---|
| Allopurinol | 182 |
| Furosemide | 93 |
| Calcitriol | 73 |
| Hydralazine Hcl | 57 |
| Prosol Parenteral Amino Acid 20% No.1 | 45 |
| Amlodipine Besylate | 44 |
| Calcium Acetate | 42 |
| Hydrochlorothiazide | 42 |
| Farxiga Dapagliflozin Propanediol | 39 |
| Sevelamer Carbonate | 37 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How Nassif Azzi, MD fits within the Nephrology Physician landscape nationally.
10,569
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider
Nassif Azzi, MD's 1,069 claims are below the specialty average of 1,454.
Nationwide Nephrology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Azzi, both outside Tennessee so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2009)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Nephrology Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Azzi.
One of 222 Nephrology Physician providers enrolled in Tennessee, 5 are shown here.
Dr. Mazen Abu Hatab
MD
Knoxville, TN
Dr. Wala Abusalah
MD
Knoxville, TN
Dr. Abrar Ahmad
M.D.
Kingsport, TN
Dr. Mohammed Ahmed
M.D.
Morristown, TN
Dr. Siddique Akbar
MD
Jackson, TN
Compare Nephrology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Nassif Azzi, MD's specialty? ▼
Nassif Azzi, MD specializes in Nephrology Physician and practices in Hermitage, Tennessee. Credentials: MD.
How much does Nassif Azzi, MD prescribe under Medicare Part D? ▼
In 2023, Nassif Azzi, MD wrote 1,069 Medicare Part D claims totaling $137K in drug costs for 172 beneficiaries.
Where is Nassif Azzi, MD located? ▼
Nassif Azzi, MD is located at 5653 FRIST BLVD STE 739, Hermitage, TN, 37076. Phone: (615) 628-8064.
What is Nassif Azzi, MD's NPI number? ▼
Nassif Azzi, MD's National Provider Identifier (NPI) is 1801025820, issued on 07/11/2009.
How many Nephrology Physician providers are there in the US? ▼
There are 10,569 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does Nassif Azzi, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Nassif Azzi, MD's most frequently prescribed drugs include Allopurinol, Furosemide, Calcitriol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Nassif Azzi, MD accept Medicare? ▼
Nassif Azzi, MD appears in CMS Medicare data with 1,069 Part D claims and 172 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Nassif Azzi, MD's credentials? ▼
Nassif Azzi, MD's NPI is 1801025820 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.
- 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.