Dr. Walter Michael Bortz, MD
- Medicare services, 2024
- 281
- Medicare patients, 2024
- 102
- Part D claims, 2024
- 434
- Publications
- 1
- MIPS score, 2024
- 79
- Practice address
- 1101 Medical Center Blvd, Marrero, LA 70072
- Practice phone
- Call (504) 347-5511
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Bortz's professional email, personal email and mobile number
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Dr. Walter Michael Bortz is an internist in Marrero, Louisiana
Dr. Bortz practices at West Jefferson Medical Center in Marrero, Louisiana, part of LCMC Health.
Dr. Bortz's NPI, 1225012016, was assigned on December 5, 2005. Dr. Bortz graduated from Boston University School of Medicine in 1993. Dr. Bortz holds Louisiana license 307621.
- NPI
- 1225012016NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729976519
- NPI enumeration date
- December 5, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (504) 347-5511
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Walter Michael Bortz practices at West Jefferson Medical Center in Marrero, Louisiana
Dr. Bortz's primary practice is West Jefferson Medical Center, at 1101 Medical Center Blvd, Marrero, LA 70072 in Jefferson Parish. The practice phone is (504) 347-5511.
- West Jefferson Medical Center1101 Medical Center Blvd, Marrero, LA 70072 · Jefferson ParishPhone(504) 347-5511
Source: Dmand AI Affiliation Data
Dr. Walter Michael Bortz is affiliated with 2 sites of care and 1 medical group
Dr. Bortz's primary practice is West Jefferson Medical Center in Marrero, Louisiana, part of LCMC Health. The medical group on file is LCMC Health. Dmand AI also links Dr. Bortz to 1 more clinical lab, 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 Michael Bortz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bortz practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| West Jefferson Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Walter Michael Bortz is one of 1,571 internists in Louisiana
Internal medicine is Dr. Bortz's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Bortz's licenses on file in 2 states: Louisiana and California.
Specialties and state licenses
- Internal medicine, LouisianaPrimary
- California license
Internists near Dr. Bortz
Counts of internists 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 Michael Bortz billed Medicare for 281 services in 2024
CMS data shows 281 Medicare services from Dr. Bortz across 6 procedure codes in 2024, for 102 Medicare patients. Medicare paid $19,686 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Bortz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3752024: 28125%
Dr. Bortz compared with the Louisiana median for internists, 2024
- Dr. Bortz
- Louisiana median
- Medicare services
- 281vs 42133% below
- Medicare patients
- 102vs 16036% below
- Part D claims
- 204vs 40850% below
Medians across 1,561 internists in Louisiana with Dmand AI profiles that report each measure.
Dr. Bortz'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Bortz and other internists in Louisiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Walter Michael Bortz treated 102 Medicare patients in 2024, average age 74
CMS counts 102 Medicare patients who saw Dr. Bortz in 2024. The largest group is 75 to 84, with 38 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 32% are also on Medicaid. Their average risk score is 3.06, 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. Bortz's median patient age at 74, with 58% women.
Dr. Bortz's Medicare patients by age, 2024
Dr. Bortz's Medicare patients by sex, 2024
- Women4746%
- Men5554%
Chronic conditions among Dr. Bortz's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease51%
- Heart failure48%
- Arthritis47%
- Diabetes47%
- Ischemic heart disease47%
- Atrial fibrillation33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Bortz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Walter Michael Bortz wrote 434 Medicare Part D claims in 2024
In 2024, Dr. Bortz wrote 434 Medicare Part D claims for 163 patients. 87% of them were for generic drugs. CMS names the drug for 204 of them, across 10 drugs with 11 or more claims each, at $11,051 in total drug cost. In 2023, CMS named 264 claims across 14 drugs.
Dr. Bortz's Part D claims by kind of drug, 2024
- Generic376 claims87%
- Brand-name58 claims13%
Dr. Bortz'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.
Drug classes CMS tracks in Dr. Bortz's Part D claims, 2024
- Antibiotics9%39 of 434 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: 2642024: 20423%
Drugs named by CMS: 10 in 2024, 14 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
Dr. Walter Michael Bortz scored 79 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 79 out of 100 for Dr. Bortz for performance year 2024, reported as part of a group. Dr. Bortz accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Bortz's MIPS scores, performance year 2024
- 79of 100Final score
- 68of 100Quality
- 40of 100Improvement Activities
- 76of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Walter Michael Bortz has 1 publication on record
Dmand AI links 1 paper to Dr. Bortz in 2016. Dr. Bortz's most frequent co-author is Michael Fredericson, MD.
Dr. Bortz's most frequent co-authors
Recent publications by Dr. Bortz
See who Dr. Bortz researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Bortz works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Walter Michael Bortz received $389 in industry payments from 2017 to 2024
CMS Open Payments shows 13 general payments to Dr. Bortz from 6 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 100% of the total. The Medicines Company paid the most, $88.
General payments to Dr. Bortz by program year, 2017 to 2024
Companies that paid Dr. Bortz the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Walter Michael Bortz graduated from Boston University School of Medicine
Dr. Bortz graduated from Boston University School of Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Walter Michael Bortz'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Michael Bortz
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 Michael Bortz's NPI number?
Dr. Walter Michael Bortz's NPI number is 1225012016. It was assigned on December 5, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Walter Michael Bortz?
Dr. Walter Michael Bortz is an internist in Marrero, Louisiana. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Walter Michael Bortz practice?
Dr. Bortz practices at 1101 Medical Center Blvd, Marrero, LA 70072. Dr. Bortz's primary practice is West Jefferson Medical Center in Marrero, Louisiana, part of LCMC Health. Dmand AI also links Dr. Bortz to 1 clinical lab.
What is Dr. Walter Michael Bortz's office phone number?
The practice phone on file for Dr. Bortz is (504) 347-5511.
What is Dr. Walter Michael Bortz's medical license number?
Dr. Bortz holds Louisiana license 307621, one of the licenses on file in 2 states.
Which states has Dr. Walter Michael Bortz been licensed in?
Dmand AI has state licenses on file for Dr. Bortz in Louisiana and California.
Which hospitals is Dr. Walter Michael Bortz affiliated with?
Dr. Bortz practices at West Jefferson Medical Center in Marrero, Louisiana.
What medical group is Dr. Walter Michael Bortz part of?
Dr. Bortz is linked to LCMC Health.
Does Dr. Walter Michael Bortz accept Medicare?
Yes. CMS data shows Dr. Bortz billed Medicare for 281 services in 2024, and Dr. Bortz accepts Medicare assignment.
What is Dr. Walter Michael Bortz's MIPS score?
Dr. Bortz's MIPS final score for performance year 2024 is 79 out of 100, reported as part of a group.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Walter Michael Bortz see?
CMS counts 102 Medicare patients who saw Dr. Bortz in 2024, with an average age of 74.
What services does Dr. Walter Michael Bortz bill to Medicare?
In 2024, Dr. Bortz's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99221) and hospital inpatient care (99231).
Where did Dr. Walter Michael Bortz go to medical school?
Dr. Bortz graduated from Boston University School of Medicine in 1993.
What drugs does Dr. Walter Michael Bortz prescribe most?
In 2024 Medicare Part D data, Dr. Bortz's most prescribed drugs by claims were Furosemide, Metoprolol Succinate and Pantoprazole Sodium.
Has Dr. Walter Michael Bortz received payments from drug or device companies?
CMS Open Payments shows $389 in general payments to Dr. Bortz from 6 companies from 2017 to 2024. The largest total came from The Medicines Company.
How long has Dr. Walter Michael Bortz been practicing?
Dr. Bortz graduated from medical school in 1993, 33 years ago.
Does Dr. Walter Michael Bortz do research?
Dmand AI links 1 publication to Dr. Bortz.
Who does Dr. Walter Michael Bortz publish with?
Dr. Bortz's most frequent co-authors are Michael Fredericson, MD (1 shared paper).
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