MICHAEL D WILLIAMSON CRNA
NPI 1538417092
Nurse Anesthetist, Certified Registered in Chattanooga, TN

Q: What is Michael Williamson's NPI number?

The NPI number for Michael Williamson is 1538417092. It was assigned to this individual provider in the NPPES registry on August 15, 2012.

Q: What is Michael Williamson's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Active since August 15, 2012Accepts Medicare Assignment

975 E. THIRD STREET, CHATTANOOGA, TN 37403(423) 778-7608(423) 778-2360 Get Directions Write a Review

NPPES record last updated: November 17, 2014. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Michael D Williamson Crna NPPES

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

MICHAEL D WILLIAMSON CRNA (NPI 1538417092) is an individual nurse anesthetist, certified registered in Chattanooga, Tennessee, licensed in Tennessee (APN16986) and active in the NPI registry since August 2012. He is affiliated with Tennova Health Care-cleveland and is a graduate of Other (2012).

NPPES Registry Identity

NPI1538417092

Entity TypeIndividualMale

Primary Taxonomy367500000X

Provider Legal NameMICHAEL D WILLIAMSONCredential: CRNA

Location Address975 E. THIRD STREETChattanooga, TN 37403-2147

Mailing AddressPo Box 11225Chattanooga, TN 37401-2225 · (423) 892-5602 · Fax (423) 892-5838

Phone(423) 778-7608

Fax(423) 778-2360

Sole ProprietorNo

Medical School CMSOtherGraduated 2012

Enumeration DateAugust 15, 2012

Last NPPES UpdateNovember 17, 2014

✔ NPI 1538417092 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code367500000X

License✔ Licensed in TN · APN16986

Definition

(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.

Also ListedRegistered NurseTaxonomy 163W00000X · License RN145626 (TN)

975 E. THIRD STREET, Chattanooga, TN 37403

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Other Identifiers 1

Medicare PIN103I432379TN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Alliant Health Plans, Inc..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

Michael D Williamson Crna 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 ID2466603139

PECOS Enrollment IDI20121107000213

Medicare Billing Reassignments

Medicare enrollment records show Michael Williamson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Bradley Anesthesia Services PC

25 mi

Anesthesiology

2305 CHAMBLISS AVE NW
Cleveland, TN 37311

Reassigned Medicare billing, Tennessee enrollment
39 clinicians in this Medicare group

NPI 1972329324 (423) 559-6000

Athens Anesthesia Associates, Inc.

47 mi

Anesthesiology

1114 W MADISON AVE
Athens, TN 37303

Reassigned Medicare billing, Tennessee enrollment
13 clinicians in this Medicare group

NPI 1649229014 (423) 745-1411

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

Hospital Affiliations CMS Care Compare

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

Tennova Health Care-Cleveland

Acute Care Hospitals · Cleveland, TN

2/5 CMS rating

OwnershipProprietary

CMS Certification Number440185

Location2305 Chambliss Ave NWCleveland, TN 37311 · Bradley County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37403 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

$121.80 typical visit price

range $52.64 – $160.89

Typical copayment $30.45 (range $13.16 – $40.22)

Most-billed visit code 99204

Established Patient

$66.01 typical visit price

range $16.72 – $131.41

Typical copayment $16.50 (range $4.18 – $32.85)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

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

LAURA L WESTBROOK MD

Anesthesiology