Dr. Michael Tanner Libsack , DO
Anesthesiology β’ Flagstaff, AZ
1200 N Beaver St
Flagstaff, AZ 860013118
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
1200 N Beaver St
Flagstaff, AZ 860013118
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 2 distinct additional practice-address records in Lebanon, OR; New Orleans, LA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Northern Arizona Healthcare Corporation. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2021
What Public CMS Data Show
Anesthesiology: NPPES taxonomy is a reported classification, not proof of board certification.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $13.24 in 2024
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2024.
Years since graduation
5 years (graduated 2021)
CMS Doctors and Clinicians data list 2021 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2019
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Libsack has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Libsack as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Flagstaff and Arizona
42 active clinicians are listed under Anesthesiology with a practice address in Flagstaff, AZ (1,473 in Arizona).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Flagstaff
0% of these 42 clinicians have the CMS telehealth indicator.
73.8% of these 42 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2024 only.
Sources: CMS Open Payments (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2024 (payments made January 1 β December 31, 2024): fewer than 11 records totaling $13.24.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Avanos Medical |
Food and Beverage
In-kind items and services
|
ON-Q* PUMP AND ACCESSORIES | General | $13.24 |
Source: CMS Open Payments, program year 2024, released June 30, 2026.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-06-24NUCC Taxonomy Code: 207L00000X
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - ANESTHESIOLOGY
I20250707003861
AZ
6002216280
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Northern Arizona Healthcare Corporation
1215 N Beaver St, Flagstaff, AZ 860013126
Phone: 9287732249
Northern Arizona Healthcare Corporation
1200 N Beaver St, Flagstaff, AZ 860013118
Northern Arizona Healthcare Corporation
269 S Candy Ln, Cottonwood, AZ 863264158
Phone: 9286395588
Northern Arizona Healthcare Corporation
269 S Candy Ln, Cottonwood, AZ 863264158
Phone: 9286341331
Northern Arizona Healthcare Corporation
1200 N Beaver St, Flagstaff, AZ 860013118
Phone: 9282142920
Northern Arizona Healthcare Corporation
2000 S Thompson St, Flagstaff, AZ 860018759
Phone: 9282266400
Northern Arizona Healthcare Corporation
7810 N Us Hwy 89, Flagstaff, AZ 860046255
Phone: 9285228375
Secondary Practice Locations
1430 Tulane Ave # 8050
New Orleans, LA 701122632
Phone: 5049885904
200 Mullins Dr
Lebanon, OR 973553983
Phone: 6027083662
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Anesthesiology - Critical Care Medicine
Doctor of Osteopathic Medicine (D.O.)
Internal Medicine - Critical Care Medicine
Doctor of Medicine (M.D.)
Anesthesiology
Doctor of Medicine (M.D.)
Emergency Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1200 N BEAVER ST, FLAGSTAFF, AZ 860013118 (Tel: 9287793366)
Registered at 1200 N BEAVER ST, ATTN: PAYER CREDENTIALING, FLAGSTAFF, AZ 860013118 (Tel: 9282136235)
Anesthesiology (license number reported to NPPES: AZ 011715)
Registered at 1430 TULANE AVE # 8050, NEW ORLEANS, LA 701122632 (Tel: 5049885904)
Registered at 1430 TULANE AVE # 8050, NEW ORLEANS, LA 701122632 (Tel: 5049885904)
Recorded as MICHAEL LIBSACK, DO
NPI status registered as active in NPPES database
Registered at 200 MULLINS DR, LEBANON, OR 973553983 (Tel: 6027083662)
Registered at 200 MULLINS DR, LEBANON, OR 973553983 (Tel: 6027083662)
Recorded as MICHAEL LIBSACK
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Anesthesiology Specialists in Flagstaff
- Dr. Robert Wells, MD
- Dr. Kellie Arviso, MD
- Dr. Mark Lindstrom, DO
- Dr. Spencer Roberson, MD
- Dr. John Marvel, DO
- Dr. Jeremy Nielsen, MD
Mailing Address
1200 N Beaver St, Attn: Payer Credentialing
Flagstaff, AZ 860013118
Phone: 9282136235