Dr. Walter M. Zibas, MD
- Medicare services, 2024
- 1,228
- Medicare patients, 2024
- 360
- Part D claims, 2024
- 906
- Hospital affiliations
- 6
- Industry payments
- $5,173
- Practice address
- 101 Fort Sanders West Blvd, Knoxville, TN 37922
- Practice phone
- Call (865) 895-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Zibas' professional email, personal email and mobile number
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Dr. Walter M. Zibas is a pulmonologist in Knoxville, Tennessee
Dr. Zibas practices at Patricia Neal Rehabilitation Hospital in Knoxville, Tennessee, part of Encompass Health.
Dr. Zibas' NPI, 1437185915, was assigned on June 25, 2006. Dr. Zibas graduated from East Tennessee State University Quillen College of Medicine in 1992. Dr. Zibas holds Tennessee license 27781.
- NPI
- 1437185915NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597753822
- NPI enumeration date
- June 25, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (865) 895-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Walter M. Zibas practices at Patricia Neal Rehabilitation Hospital in Knoxville, Tennessee
Dr. Zibas' primary practice is Patricia Neal Rehabilitation Hospital, at 101 Fort Sanders West Blvd, Knoxville, TN 37922 in Knox County. The practice phone is (865) 895-3000.
- Patricia Neal Rehabilitation Hospital101 Fort Sanders West Blvd, Knoxville, TN 37922 · Knox CountyPhone(865) 895-3000
Source: Dmand AI Affiliation Data
Dr. Walter M. Zibas is affiliated with 6 sites of care
Dr. Zibas' primary practice is Patricia Neal Rehabilitation Hospital in Knoxville, Tennessee, part of Encompass Health. Dr. Zibas is also affiliated with The University of Tennessee Medical Center. Dmand AI also links Dr. Zibas to 4 more hospitals, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Walter M. Zibas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zibas practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Patricia Neal Rehabilitation Hospital | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Encompass Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Walter M. Zibas is one of 332 pulmonologists in Tennessee
Pulmonary disease is Dr. Zibas' primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Zibas is licensed in Tennessee.
Specialties and state licenses
- Pulmonary disease, TennesseePrimary
Pulmonologists near Dr. Zibas
Counts of pulmonologists 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. Walter M. Zibas billed Medicare for 1,228 services in 2024
CMS data shows 1,228 Medicare services from Dr. Zibas across 8 procedure codes in 2024, for 360 Medicare patients. Medicare paid $85,174 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Zibas' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,3942024: 1,22812%
- Other services
- 2023: 112024: 0100%
Dr. Zibas compared with the Tennessee median for pulmonologists, 2024
- Dr. Zibas
- Tennessee median
- Medicare services
- 1,228vs 75463% above
- Medicare patients
- 360vs 28327% above
- Part D claims
- 565vs 46621% above
Medians across 326 pulmonologists in Tennessee with Dmand AI profiles that report each measure.
Dr. Zibas' 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.
Need commercial claims for Dr. Zibas?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zibas and other pulmonologists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Walter M. Zibas treated 360 Medicare patients in 2024, average age 77
CMS counts 360 Medicare patients who saw Dr. Zibas in 2024. The largest group is 75 to 84, with 140 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 2.34, 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. Zibas' median patient age at 68, with 53% women.
Dr. Zibas' Medicare patients by age, 2024
Dr. Zibas' Medicare patients by sex, 2024
- Women19955%
- Men16145%
Chronic conditions among Dr. Zibas' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis65%
- Chronic kidney disease48%
- Diabetes48%
- Mood disorders47%
- Anxiety45%
- Ischemic heart disease45%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zibas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Walter M. Zibas wrote 906 Medicare Part D claims in 2024
In 2024, Dr. Zibas wrote 906 Medicare Part D claims for 246 patients. 78% of them were for generic drugs. CMS names the drug for 565 of them, across 23 drugs with 11 or more claims each, at $72,091 in total drug cost. In 2023, CMS named 383 claims across 16 drugs.
Dr. Zibas' Part D claims by kind of drug, 2024
- Generic708 claims78%
- Brand-name and other198 claims22%
Dr. Zibas' 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.
Drug classes CMS tracks in Dr. Zibas' Part D claims, 2024
- Opioids3%24 of 906 claims
- Antibiotics12%107 of 906 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3832024: 56548%
Drugs named by CMS: 23 in 2024, 16 in 2023.
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. Walter M. Zibas takes part in Medicare
Dr. Zibas 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. Walter M. Zibas received $5,173 in industry payments from 2016 to 2025
CMS Open Payments shows 199 general payments to Dr. Zibas from 28 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $1,208.
General payments to Dr. Zibas by program year, 2016 to 2025
General payments to Dr. Zibas by kind, 2016 to 2025
- Food and beverage$5,153100%
- Education$200%
Companies that paid Dr. Zibas the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Walter M. Zibas graduated from East Tennessee State University Quillen College of Medicine
Dr. Zibas graduated from East Tennessee State University Quillen College of Medicine in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Walter M. Zibas's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Walter M. Zibas
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. Walter M. Zibas' NPI number?
Dr. Walter M. Zibas' NPI number is 1437185915. It was assigned on June 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Walter M. Zibas?
Dr. Walter M. Zibas is a pulmonologist in Knoxville, Tennessee. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Walter M. Zibas practice?
Dr. Zibas practices at 101 Fort Sanders West Blvd, Knoxville, TN 37922. Dr. Zibas' primary practice is Patricia Neal Rehabilitation Hospital in Knoxville, Tennessee, part of Encompass Health. Dmand AI also links Dr. Zibas to 4 hospitals.
What is Dr. Walter M. Zibas' office phone number?
The practice phone on file for Dr. Zibas is (865) 895-3000.
What is Dr. Walter M. Zibas' medical license number?
Dr. Zibas holds Tennessee license 27781.
Which hospitals is Dr. Walter M. Zibas affiliated with?
Dr. Zibas practices at Patricia Neal Rehabilitation Hospital in Knoxville, Tennessee. Dr. Zibas is also affiliated with The University of Tennessee Medical Center. Dmand AI links Dr. Zibas to 4 more hospitals.
Does Dr. Walter M. Zibas accept Medicare?
Yes. CMS data shows Dr. Zibas billed Medicare for 1,228 services in 2024, and Dr. Zibas accepts Medicare assignment.
How many Medicare patients does Dr. Walter M. Zibas see?
CMS counts 360 Medicare patients who saw Dr. Zibas in 2024, with an average age of 77.
What services does Dr. Walter M. Zibas bill to Medicare?
In 2024, Dr. Zibas' most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99238).
Where did Dr. Walter M. Zibas go to medical school?
Dr. Zibas graduated from East Tennessee State University Quillen College of Medicine in 1992.
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What drugs does Dr. Walter M. Zibas prescribe most?
In 2024 Medicare Part D data, Dr. Zibas' most prescribed drugs by claims were Atorvastatin Calcium, Eliquis and Losartan Potassium.
Has Dr. Walter M. Zibas received payments from drug or device companies?
CMS Open Payments shows $5,173 in general payments to Dr. Zibas from 28 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Walter M. Zibas been practicing?
Dr. Zibas graduated from medical school in 1992, 34 years ago.
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