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MARY ELIZABETH HOLZER
NPI 1437546116
Internal Medicine in Covington, LA

Active since April 21, 2015PECOS EnrolledAccepts Medicare Assignment
130 LAKEVIEW CIR APT 304, COVINGTON, LA 70433(985) 892-6858 Get Directions Write a Review

NPPES record last updated: February 13, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 13, 2023, Sep 4, 2019 (2 updates tracked since 2019).

About Mary Elizabeth Holzer NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARY ELIZABETH HOLZER (NPI 1437546116) is an individual internal medicine provider in Covington, Louisiana, licensed in Louisiana (312613) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS, is affiliated with Ochsner Medical Center Acute, and is a graduate of Louisiana State University School Of Medicine In New Orleans (2015).

NPPES Registry Identity

NPI1437546116
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameMARY ELIZABETH HOLZER
Location Address130 LAKEVIEW CIR APT 304Covington, LA 70433-7512
Mailing Address7069 Louisville StNew Orleans, LA 70124-3425 · (504) 920-9225
Phone(985) 892-6858
Sole ProprietorNo
Medical School CMSLouisiana State University School Of Medicine In New OrleansGraduated 2015
Enumeration DateApril 21, 2015
Last NPPES UpdateFebruary 13, 20232 updates tracked since enumeration
NPPES CertifiedFebruary 13, 2023
✔ NPI 1437546116 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in LA · 312613
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
130 LAKEVIEW CIR APT 304, Covington, LA 70433
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Other Identifiers 1

Medicaid2389904LA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Magnolia Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mary Elizabeth Holzer is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2466736749
PECOS Enrollment IDI20190917001102
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
160 services82 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
67 services67 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
59 services46 patients
Detection test by immunoassay with direct visual observation for influenza virus 87804
This is a test that identifies the influenza virus in your body. It works by using an immunoassay, a method that detects the presence of the virus through an immune response. The results are directly observable, making it a quick and efficient way to diagnose flu.
26 services13 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
24 services24 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
22 services22 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ochsner Medical Center Acute

Acute Care Hospitals · New Orleans, LA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number190036
Location1516 Jefferson HwyNew Orleans, LA 70121 · Jefferson County
Emergency services Birthing friendly

St Tammany Parish Hospital

Acute Care Hospitals · Covington, LA
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number190045
Location1202 S Tyler StreetCovington, LA 70433 · St. Tammany County
Emergency services Birthing friendly

East Jefferson General Hospital

Acute Care Hospitals · Metairie, LA
3/5 CMS rating
OwnershipProprietary
CMS Certification Number190176
Location4200 Houma BlvdMetairie, LA 70006 · Jefferson County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 70433 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$124.60 typical visit price
range $53.43 – $164.73
Typical copayment $31.15 (range $13.35 – $41.18)
Most-billed visit code 99204
Established Patient
$95.09 typical visit price
range $16.64 – $133.62
Typical copayment $23.77 (range $4.16 – $33.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary Holzer's NPI number?

The NPI number for Mary Holzer is 1437546116. It was assigned to this individual provider in the NPPES registry on April 21, 2015.

Where is Mary Holzer located?

Mary Holzer practices at 130 Lakeview Cir Apt 304, Covington, LA 70433. The listed phone number is (985) 892-6858.

What is Mary Holzer's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mary Holzer enrolled in Medicare?

Yes. Mary Holzer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Mary Holzer accept?

Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Magnolia Health, Ambetter from Superior HealthPlan and Blue Cross and Blue Shield of Louisiana and 2 other insurers list Mary Holzer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mary Holzer affiliated with any hospitals?

According to CMS data, Mary Holzer is affiliated with Ochsner Medical Center Acute, St Tammany Parish Hospital and East Jefferson General Hospital.

When was this NPI record last updated?

The NPPES record for Mary Holzer was last updated on February 13, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.