Dr. William H. Fissell IV, MD

  • Nashville, TN
  • Nephrologist
NPI1316029218PAC ID2769484336
Medicare services, 2024
235
Medicare patients, 2024
144
Part D claims, 2024
517
Publications
94
Hospital affiliations
1
Practice address
1211 Medical Center Drive, Nashville, TN 37232
Practice phone
Call (615) 322-3454
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Vanderbilt University Medical Center

Hospital · Nashville, Tennessee

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Dr. William H. Fissell IV is a nephrologist in Nashville, Tennessee

Dr. Fissell practices at Vanderbilt University Medical Center in Nashville, Tennessee, part of Vanderbilt University Medical Center.

Dr. Fissell's NPI, 1316029218, was assigned on October 19, 2006. Dr. Fissell graduated from Cleveland Medical College, Homeopathic in 1998. Dr. Fissell holds Tennessee license MD48936.

NPI and contact details
Medicare PAC ID
2769484336
NPI enumeration date
October 19, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(615) 322-3454
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
54
Medical school graduation
1998

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. William H. Fissell IV practices at Vanderbilt University Medical Center in Nashville, Tennessee

Dr. Fissell's primary practice is Vanderbilt University Medical Center, at 1211 Medical Center Drive, Nashville, TN 37232 in Davidson County. The practice phone is (615) 322-3454.

Source: Dmand AI Affiliation Data

Dr. William H. Fissell IV is affiliated with 2 sites of care and 1 medical group

Dr. Fissell's primary practice is Vanderbilt University Medical Center in Nashville, Tennessee, part of Vanderbilt University Medical Center. The medical group on file is Vanderbilt University Medical Center. Dmand AI also links Dr. Fissell to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Dr. Fissell

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. William H. Fissell IV's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fissell practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Vanderbilt University Medical CenterAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. William H. Fissell IV is one of 230 nephrologists in Tennessee

Nephrology is Dr. Fissell's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Fissell is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Fissell's licenses on file in 4 states: Tennessee, Ohio, Michigan and Alabama.

Specialties and state licenses

  • Nephrology, TennesseePrimaryLicense MD48936 · 2012 to 2026 · taxonomy 207RN0300X
  • Ohio license2006 to 2027
  • Michigan licenseLicense 4301077062 · 2000 to 2025
  • Alabama license2020

Clinical focus

Dmand AI lists acute kidney failure, chronic anemia, chronic kidney disease and parathyroid gland disorder among the conditions Dr. Fissell treats.

Nephrologists near Dr. Fissell

Counts of nephrologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. William H. Fissell IV billed Medicare for 235 services in 2024

CMS data shows 235 Medicare services from Dr. Fissell across 5 procedure codes in 2024, for 144 Medicare patients. Medicare paid $15,993 for them.

Medicare services, 2024235
Medicare patients144
Paid by Medicare$15,993
Procedure codes5

Dr. Fissell's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1642024: 23543%

Where Dr. Fissell's Medicare services took place, 2024

  • In an office125%
  • In a facility22395%

Dr. Fissell compared with the Tennessee median for nephrologists, 2024

  • Dr. Fissell
  • Tennessee median
Medicare services
235vs 1,18780% below
Medicare patients
144vs 37361% below
Part D claims
336vs 85361% below

Medians across 228 nephrologists in Tennessee with Dmand AI profiles that report each measure.

Dr. Fissell's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Fissell

Need commercial claims for Dr. Fissell?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Fissell and other nephrologists in Tennessee.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. William H. Fissell IV treated 144 Medicare patients in 2024, average age 72

CMS counts 144 Medicare patients who saw Dr. Fissell in 2024. The largest group is 75 to 84, with 56 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 10% are also on Medicaid. Their average risk score is 2.15, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Fissell's median patient age at 73, with 41% women.

Medicare patients, 2024144
Average age72
Average risk score2.15
Also on Medicaid10%

Dr. Fissell's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Fissell's Medicare patients by sex, 2024

  • Women6747%
  • Men7753%

Chronic conditions among Dr. Fissell's Medicare patients, 2024

  1. Chronic kidney disease75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Arthritis54%
  5. Diabetes53%
  6. Ischemic heart disease44%
  7. Heart failure42%
  8. Atrial fibrillation34%

Share of Medicare patients with each condition. A patient can have several.

Dr. Fissell's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 73

Patient panel by sex, all payers

  • Women41%
  • Men59%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. William H. Fissell IV wrote 517 Medicare Part D claims in 2024

In 2024, Dr. Fissell wrote 517 Medicare Part D claims for 97 patients. 89% of them were for generic drugs. CMS names the drug for 336 of them, across 12 drugs with 11 or more claims each, at $35,891 in total drug cost. In 2023, CMS named 290 claims across 11 drugs.

Part D claims, 2024517
Drugs named by CMS12
Total drug cost$35,891
Part D patients97

Dr. Fissell's Part D claims by kind of drug, 2024

  • Generic458 claims89%
  • Brand-name59 claims11%

Dr. Fissell's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2902024: 33616%

Drugs named by CMS: 12 in 2024, 11 in 2023.

See all prescribing by Dr. Fissell

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. William H. Fissell IV takes part in Medicare

Dr. Fissell accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. William H. Fissell IV has 94 publications on record

Dmand AI links 94 papers to Dr. Fissell, published from 2006 to 2025. 2018 was the busiest year, with 6. The most frequent topics are Kidneys, Artificial, Renal Dialysis and Acute Kidney Injury. Dr. Fissell has published most often in Am J Physiol Renal Physiol. Dr. Fissell's most frequent co-authors are Shant M. Vartanian, MD, Paul R. Brakeman, MD and Michael Joseph Connor, MD.

Papers94
Years published2006 to 2025

Dr. Fissell's papers by year, 2015 to 2025

Topics Dr. Fissell writes about most

  • Kidneys, Artificial
  • Renal Dialysis
  • Acute Kidney Injury
  • Membranes, Artificial
  • Silicon
  • Anti-Bacterial Agents
  • Kidney Failure, Chronic
  • Renal Replacement Therapy

Dr. Fissell's most frequent co-authors

Recent publications by Dr. Fissell

See all 94 publications and co-authors

See who Dr. Fissell researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Fissell works with, so you can find a warm path to the right nephrologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. William H. Fissell IV received $5,028 in industry payments from 2016 to 2022

CMS Open Payments shows 8 general payments to Dr. Fissell from 2 drug and device companies from 2016 to 2022. Education speaker fees make up the largest share, 81% of the total. Baxter Healthcare paid the most, $5,009.

General payments to Dr. Fissell by program year, 2016 to 2022

General payments to Dr. Fissell by kind, 2016 to 2022

$5Kin total
  • Education speaker fees$4,06081%
  • Travel and lodging$83117%
  • Food and beverage$1182%
  • Education$200%

Companies that paid Dr. Fissell the most, 2016 to 2022

Share is of all general payments to this clinician.

See all payments to Dr. Fissell

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. William H. Fissell IV graduated from Cleveland Medical College, Homeopathic

Dr. Fissell graduated from Cleveland Medical College, Homeopathic in 1998. Dr. Fissell is a member of ASN.

  1. Medical schoolCleveland Medical College, Homeopathic
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in nephrologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. William H. Fissell IV accepts plans from 14 insurance carriers

Dr. Fissell is in network with 14 carriers, including Aetna, Cigna and Elevance. HMO plans come from the most carriers, 8. Check the plan with the practice before a visit.

Plan types Dr. Fissell accepts, by number of carriers

  1. HMO8
  2. PPO8
  3. POS6
  4. EPO5
  5. Medicare5
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. William H. Fissell IV's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. William H. Fissell IV

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. William H. Fissell IV's NPI number?

Dr. William H. Fissell IV's NPI number is 1316029218. It was assigned on October 19, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. William H. Fissell IV?

Dr. William H. Fissell IV is a nephrologist in Nashville, Tennessee. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).

Where does Dr. William H. Fissell IV practice?

Dr. Fissell practices at 1211 Medical Center Drive, Nashville, TN 37232. Dr. Fissell's primary practice is Vanderbilt University Medical Center in Nashville, Tennessee, part of Vanderbilt University Medical Center. Dmand AI also links Dr. Fissell to 1 group practice or clinic.

What is Dr. William H. Fissell IV's office phone number?

The practice phone on file for Dr. Fissell is (615) 322-3454.

What is Dr. William H. Fissell IV's medical license number?

Dr. Fissell holds Tennessee license MD48936, one of the licenses on file in 4 states.

Which states has Dr. William H. Fissell IV been licensed in?

Dmand AI has state licenses on file for Dr. Fissell in Tennessee (2012 to 2026), Ohio (2006 to 2027), Michigan (2000 to 2025) and Alabama (2020).

Which hospitals is Dr. William H. Fissell IV affiliated with?

Dr. Fissell practices at Vanderbilt University Medical Center in Nashville, Tennessee.

What medical group is Dr. William H. Fissell IV part of?

Dr. Fissell is linked to Vanderbilt University Medical Center.

Does Dr. William H. Fissell IV accept Medicare?

Yes. CMS data shows Dr. Fissell billed Medicare for 235 services in 2024, and Dr. Fissell accepts Medicare assignment.

How many Medicare patients does Dr. William H. Fissell IV see?

CMS counts 144 Medicare patients who saw Dr. Fissell in 2024, with an average age of 72.

Show 9 more questionsShow fewer questions

Is Dr. William H. Fissell IV board certified?

Yes. Dr. Fissell is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. William H. Fissell IV bill to Medicare?

In 2024, Dr. Fissell's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99232) and office visit, established patient (99213).

Where did Dr. William H. Fissell IV go to medical school?

Dr. Fissell graduated from Cleveland Medical College, Homeopathic in 1998.

What drugs does Dr. William H. Fissell IV prescribe most?

In 2024 Medicare Part D data, Dr. Fissell's most prescribed drugs by claims were Telmisartan, Febuxostat and Bumetanide.

Has Dr. William H. Fissell IV received payments from drug or device companies?

CMS Open Payments shows $5,028 in general payments to Dr. Fissell from 2 companies from 2016 to 2022. The largest total came from Baxter Healthcare.

How long has Dr. William H. Fissell IV been practicing?

Dr. Fissell graduated from medical school in 1998, 28 years ago.

Does Dr. William H. Fissell IV do research?

Dmand AI links 94 publications to Dr. Fissell, published from 2006 to 2025.

Who does Dr. William H. Fissell IV publish with?

Dr. Fissell's most frequent co-authors are Shant M. Vartanian, MD (6 shared papers), Paul R. Brakeman, MD (5 shared papers) and Michael Joseph Connor, MD (5 shared papers).

What insurance does Dr. William H. Fissell IV accept?

Dr. Fissell is in network with 14 carriers, including Aetna, Cigna and Elevance. HMO plans come from the most carriers, 8. Check the plan with the practice before a visit.

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