DR. MICHAEL DOUGLAS CASIMIR MD
NPI 1669811238
Anesthesiology in Billings, MT

Q: What is Michael Casimir's NPI number?

The NPI number for Michael Casimir is 1669811238. It was assigned to this individual provider in the NPPES registry on June 17, 2013.

Q: What is Michael Casimir's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Q: When was this NPI record last updated?

The NPPES record for Michael Casimir was last updated on May 6, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since June 17, 2013PECOS EnrolledAccepts Medicare Assignment

64.74/100

CMS Quality Rating

2900 12TH AVE N STE 205W, BILLINGS, MT 59101(631) 379-2104 Get Directions Write a Review

NPPES record last updated: May 6, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 6, 2024, Mar 14, 2023, Jul 21, 2022 and 3 more (6 updates tracked since 2017).

On this page

About Dr. Michael Douglas Casimir Md NPPES

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

DR. MICHAEL DOUGLAS CASIMIR MD (NPI 1669811238) is an individual anesthesiology provider in Billings, Montana, licensed in Montana (80614) and active in the NPI registry since June 2013. He is enrolled in Medicare PECOS, is affiliated with Ascension Sacred Heart Bay, and maintains a secondary practice location in Pensacola.

NPPES Registry Identity

NPI1669811238

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameDR. MICHAEL DOUGLAS CASIMIRCredential: MD

Location Address2900 12TH AVE N STE 205WBillings, MT 59101-7520

Mailing Address248 Route 25a Ste 37Setauket, NY 11733-2954 · (631) 379-2104

Phone(631) 379-2104

Sole ProprietorYes

Medical School CMSOtherGraduated 2013

Enumeration DateJune 17, 2013

Last NPPES UpdateMay 6, 20246 updates tracked since enumeration

NPPES CertifiedMay 6, 2024

✔ NPI 1669811238 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

Licenses✔ Licensed in MT · 80614✔ Licensed in FL · ME161939✔ Licensed in NY · 295005✔ Licensed in MA · 270678

Definition

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.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

2900 12TH AVE N STE 205W, Billings, MT 59101

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Secondary Practice Location 1

Location 14400 Bayou Blvd Ste 16CPensacola, FL 32503-1907 · Phone (850) 477-7042

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Texas and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Michael Douglas Casimir Md 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 ID4385917566

PECOS Enrollment IDI20230726000166, I20241105000562, I20250303001358

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.

Medicare Billing Reassignments

Medicare enrollment records show Michael Casimir reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Anesthesia Partners Of Montana PC

Same address

Specialist

2900 12TH AVE N, SUITE 205W
Billings, MT 59101

Reassigned Medicare billing, Montana enrollment
45 clinicians in this Medicare group

NPI 1255330791 (406) 254-0707

Ias Illinois PC

1,041 mi

Anesthesiology

2525 KANEVILLE RD
Geneva, IL 60134

Reassigned Medicare billing, Illinois and Wisconsin enrollments
99 clinicians in this Medicare group

NPI 1265118723 (630) 584-1400

Sheridan Healthcorp Inc

1,560 mi

Anesthesiology

4600 N DAVIS HWY
Pensacola, FL 32503

Reassigned Medicare billing, Florida enrollment
1,973 clinicians in this Medicare group

NPI 1811664386 (973) 251-1132

Ams Anesthetist Services LLC

1,563 mi

Anesthesiology

28 N PALAFOX ST
Pensacola, FL 32502

Reassigned Medicare billing, Florida enrollment
270 clinicians in this Medicare group

NPI 1770834426 (866) 653-2540

Texas Ams PLLC

1,563 mi

Anesthesiology

28 N PALAFOX ST
Pensacola, FL 32502

Reassigned Medicare billing, Texas enrollment
432 clinicians in this Medicare group

NPI 1174926125 (866) 653-2540

North Shore - Lij Anesthesiology, PC

1,762 mi

Anesthesiology

480 BEDFORD RD BLDG B
Chappaqua, NY 10514

Reassigned Medicare billing, New York enrollment
1,406 clinicians in this Medicare group

NPI 1417401266 (914) 666-8866

Capital Anesthesia Solutions Of Florida II, LLC

2,001 mi

Anesthesiology

6101 PINE RIDGE RD
Naples, FL 34119

Reassigned Medicare billing, Florida enrollment
767 clinicians in this Medicare group

NPI 1891318481 (239) 348-4000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 13

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.

Insertion of artery tube for blood sampling or infusion through skin 36620

This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.

36 services35 patients

Anesthesia for procedure to assess heart electrical activity 00537

Anesthesia for a procedure to assess heart electrical activity helps ensure comfort and relaxation. It involves administering medication that either numbs a specific area or makes you sleep temporarily. This allows doctors to safely examine your heart's electrical signals without causing discomfort.

30 services30 patients

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731

This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.

28 services28 patients

Anesthesia for extensive surgery on spine 00670

Anesthesia for extensive spine surgery involves medication to block pain and make you unconscious during the procedure. It ensures comfort and prevents movement. Two types may be used: general (you sleep) or regional (numbs a large area). The choice depends on the surgery specifics and your health.

25 services23 patients

Anesthesia for x-ray or radiation therapy 01922

Anesthesia for x-ray or radiation therapy involves administering medication to help you relax or sleep during the procedure. It's used to ensure comfort, minimize movement, and reduce anxiety. The type of anesthesia used depends on the procedure and patient's health.

22 services22 patients

Anesthesia for other procedure on upper abdomen 00790

Anesthesia for an upper abdomen procedure involves using medications to help you feel no pain during the operation. It can be general, where you're unconscious, or regional, where just the abdomen area is numbed. It ensures comfort and stillness, aiding a successful procedure.

17 services17 patients

Ultrasonic guidance for blood vessel access 76937

Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.

17 services15 patients

Anesthesia for retinal surgery 00145

Anesthesia for retinal surgery involves using medications to numb your eye and surrounding area. This prevents pain and discomfort during the procedure. You may also receive medication to help you relax. The anesthesia can be local (just your eye) or general (you're asleep).

13 services11 patients

Ultrasound of heart with probe in esophagus, with report 93312

This procedure, called a transesophageal echocardiogram, uses a small probe passed into your esophagus to capture detailed images of your heart. The report provides information about your heart's structure and function.

13 services13 patients

Ultrasound of heart blood flow, valves and chambers 93320

An ultrasound of your heart, also known as an echocardiogram, is a test that uses sound waves to create detailed images of your heart. It helps doctors check the health of your heart's chambers, valves, and blood flow.

13 services13 patients

Ultrasound of heart with color-depicted blood flow, rate and valve function 93325

An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.

13 services13 patients

Anesthesia for other procedure on urinary system through urethra 00910

Anesthesia for a procedure on the urinary system through the urethra involves using medicine to numb sensation in the area. This is done to ensure you feel no pain or discomfort during the procedure. The medicine can be given locally, regionally, or generally, depending on the specifics of your procedure.

12 services12 patients

Anesthesia for procedure on upper 2/3rd of thigh bone 01230

Anesthesia for a procedure on the upper 2/3rd of the thigh bone involves administering medication to numb the area or make you unconscious, ensuring you don't feel pain during the operation. It's a safe and routine part of surgical procedures.

12 services12 patients

Hospital Affiliations CMS Care Compare

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

Ascension Sacred Heart Bay

Acute Care Hospitals · Panama City, FL

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number100026

Location615 N Bonita AvePanama City, FL 32401 · Bay County

Emergency services

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

64.74/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

58.52

Improvement Activities

Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

TYSEN TRUJILLO M.D.

Anesthesiology