OSCAR A LEWIS CRNA
NPI 1881660033
Nurse Anesthetist, Certified Registered in Chattanooga, TN

Active since February 27, 2006Accepts Medicare Assignment
975 E. THIRD STREET, CHATTANOOGA, TN 37403(423) 778-7608(423) 778-2360 Get Directions Write a Review

NPPES record last updated: April 30, 2010. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Oscar A Lewis Crna NPPES

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

OSCAR A LEWIS CRNA (NPI 1881660033) is an individual nurse anesthetist, certified registered in Chattanooga, Tennessee, licensed in Tennessee (APN11239) and active in the NPI registry since February 2006. He is affiliated with Adventhealth Gordon and is a graduate of Other (2004).

NPPES Registry Identity

NPI1881660033
Entity TypeIndividualMale
Primary Taxonomy367500000X
Provider Legal NameOSCAR A LEWISCredential: CRNA
Location Address975 E. THIRD STREETChattanooga, TN 37403-2147
Mailing AddressPo Box 11225Chattanooga, TN 37401-2225 · (423) 892-5602 · Fax (423) 892-5838
Fax(423) 778-2360
Sole ProprietorNo
Medical School CMSOtherGraduated 2004
Enumeration DateFebruary 27, 2006
Last NPPES UpdateApril 30, 2010
✔ NPI 1881660033 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
Licenses✔ Licensed in TN · APN11239✔ Licensed in GA · RN127955
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 RN107152 (TN)
975 E. THIRD STREET, Chattanooga, TN 37403

Other Identifiers 9

Medicaid3634675TN
Medicare PIN3634675TN
Medicaid177060840AGA
Medicaid1512182TN
Medicaid109573AL
Medicare PIN36346752TN
Medicaid8053405NC
Other4216397TN · Blue Cross Blue Shield Of Tn
OtherP00785186TN · Railroad Medicare

Accepted 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

Oscar A Lewis 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 ID4688629330
PECOS Enrollment IDI20050316000305, I20060314000444

Medicare Billing Reassignments

3

Medicare enrollment records show Oscar Lewis reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Anesthesiology
2305 CHAMBLISS AVE NW
Cleveland, TN 37311
  • Reassigned Medicare billing, Tennessee enrollment
  • 39 clinicians in this Medicare group
Anesthesiology
501 REDMOND RD NW
Rome, GA 30165
  • Reassigned Medicare billing, Georgia enrollment
  • 113 clinicians in this Medicare group
Nurse Anesthetist, Certified Registered
11 JOHN MADDOX DR NW
Rome, GA 30165
  • Reassigned Medicare billing, Georgia enrollment
  • 80 clinicians in this Medicare group

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 2

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.

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.
20 services20 patients
Anesthesia for other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
17 services17 patients

Hospital Affiliations CMS Care Compare 2

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

Adventhealth Gordon

Acute Care Hospitals · Calhoun, GA
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number110023
Location1035 Red Bud RoadCalhoun, GA 30701 · Gordon County
Birthing friendly

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.

Anesthesiology
975 E. THIRD STREET
CHATTANOOGA, TN 37403
Nurse Anesthetist, Certified Registered
975 E. THIRD STREET
CHATTANOOGA, TN 37403
Nurse Anesthetist, Certified Registered
975 E. THIRD STREET
CHATTANOOGA, TN 37403
Nurse Anesthetist, Certified Registered
975 E. THIRD STREET
CHATTANOOGA, TN 37403
Internal Medicine
975 E. THIRD STREET
CHATTANOOGA, TN 37403
Internal Medicine
975 E. THIRD STREET
CHATTANOOGA, TN 37403
Internal Medicine
975 E. THIRD STREET
CHATTANOOGA, TN 37403
Internal Medicine
975 E. THIRD STREET
CHATTANOOGA, TN 37403

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 Oscar Lewis's NPI number?

The NPI number for Oscar Lewis is 1881660033. It was assigned to this individual provider in the NPPES registry on February 27, 2006.

Where is Oscar Lewis located?

Oscar Lewis practices at 975 E. Third Street, Chattanooga, TN 37403. The listed phone number is (423) 778-7608.

What is Oscar Lewis's specialty?

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

Is Oscar Lewis enrolled in Medicare?

Yes. Oscar Lewis 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.

Which organizations bill Medicare for Oscar Lewis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Oscar Lewis reassigns Medicare benefits to 3 organizations: Bradley Anesthesia Services PC (Cleveland, TN), Redmond Anesthesia And Pain Treatment, PC (Rome, GA) and Rg Anesthesia LLC (Rome, GA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Oscar Lewis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Oscar Lewis accept?

Health plans from Alliant Health Plans, Inc. list Oscar Lewis 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 Oscar Lewis affiliated with any hospitals?

According to CMS data, Oscar Lewis is affiliated with Adventhealth Gordon and Tennova Health Care-Cleveland.

When was this NPI record last updated?

The NPPES record for Oscar Lewis was last updated on April 30, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.