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DR. NICHOLAS PHILIP DOIRON MD
NPI 1194990218
Anesthesiology in Knoxville, TN

Active since April 29, 2008PECOS EnrolledAccepts Medicare Assignment
1901 CLINCH AVE, KNOXVILLE, TN 37916(865) 255-1459 Get Directions Write a Review

NPPES record last updated: October 15, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Nicholas Philip Doiron Md NPPES

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

DR. NICHOLAS PHILIP DOIRON MD (NPI 1194990218) is an individual anesthesiology provider in Knoxville, Tennessee, licensed in Tennessee (51236) and active in the NPI registry since April 2008. He is enrolled in Medicare PECOS, is affiliated with Morristown Hamblen Hospital Association, and is a graduate of University Of Kentucky College Of Medicine (2008).

NPPES Registry Identity

NPI1194990218
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. NICHOLAS PHILIP DOIRONCredential: MD
Location Address1901 CLINCH AVEKnoxville, TN 37916-2307
Mailing Address1637 Wheaton PlKnoxville, TN 37919-8982 · (865) 255-1459
Phone(865) 255-1459
Sole ProprietorYes
Medical School CMSUniversity Of Kentucky College Of MedicineGraduated 2008
Enumeration DateApril 29, 2008
Last NPPES UpdateOctober 15, 2021
NPPES CertifiedOctober 15, 2021
✔ NPI 1194990218 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in TN · 51236
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.
1901 CLINCH AVE, Knoxville, TN 37916
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cigna Healthcare.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. Nicholas Philip Doiron 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 ID1153563234
PECOS Enrollment IDI20140917001417
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

3

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

American Anesthesiology Of Tennessee, P.C.
0.1 mi
Nurse Anesthetist, Certified Registered
501 20TH ST, SUITE 606
Knoxville, TN 37916
  • Reassigned Medicare billing, Tennessee enrollment
  • Medicare enrollment name: American Anesthesiology Of Tennessee PC
  • 959 clinicians in this Medicare group
NPI 1245279777 (865) 546-8040
Covenant Anesthesia Group, PC
18 mi
Anesthesiology
990 OAK RIDGE TPKE, ANESTHESIA DEPT
Oak Ridge, TN 37830
  • Reassigned Medicare billing, Tennessee enrollment
  • 289 clinicians in this Medicare group
NPI 1639148117 (865) 691-9000
East Tennessee Ambulatory Surgery Center LLC
90 mi
Ambulatory Surgical
701 MED TECH PKWY
Johnson City, TN 37604
  • Reassigned Medicare billing, Tennessee enrollment
  • Medicare enrollment name: Paragon Anesthesia PC
  • 294 clinicians in this Medicare group
NPI 1659360071 (423) 283-7302

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.

Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) 64447
This procedure involves injecting a numbing agent and/or steroid into a nerve in your thigh. It's done to alleviate pain or inflammation. A needle will be carefully positioned near the nerve, and the medicine will be administered.
24 services24 patients
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.
17 services16 patients

Hospital Affiliations CMS Care Compare 5

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

Morristown Hamblen Hospital Association

Acute Care Hospitals · Morristown, TN
3/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number440030
Location908 W 4th North StMorristown, TN 37814 · Hamblen County
Emergency services Birthing friendly

Methodist Medical Center Of Oak Ridge

Acute Care Hospitals · Oak Ridge, TN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440034
Location990 Oak Ridge Turnpike Box 529Oak Ridge, TN 37830 · Anderson County
Emergency services Birthing friendly

Leconte Medical Center

Acute Care Hospitals · Sevierville, TN
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number440081
Location742 Middlecreek RoadSevierville, TN 37862 · Sevier County
Emergency services Birthing friendly

Fort Sanders Regional Medical Center

Acute Care Hospitals · Knoxville, TN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440125
Location1901 W Clinch AveKnoxville, TN 37916 · Knox County
Emergency services Birthing friendly

Parkwest Medical Center

Acute Care Hospitals · Knoxville, TN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440173
Location9352 Park West BlvdKnoxville, TN 37923 · Knox County
Emergency services Birthing friendly

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.

JAMES RYAN WALLACE CRNA
Nurse Anesthetist, Certified Registered
1901 CLINCH AVE
KNOXVILLE, TN 37916
Knox County (865) 342-9098
LYNDSIE NICOLE DOCKERY RN
Student in an Organized Health Care Education/Training Program
1901 CLINCH AVE
KNOXVILLE, TN 37916
Knox County (865) 331-1111
LAUREN HEALEY
Registered Nurse (Critical Care Medicine)
1901 CLINCH AVE
KNOXVILLE, TN 37916
Knox County (865) 331-1111
MATTHEW TOWNSEND MUSTARD CRNA
Nurse Anesthetist, Certified Registered
1901 CLINCH AVE
KNOXVILLE, TN 37916
Knox County (865) 331-1111
DR. WILLIAM TYLER CLEMENTS DO
Internal Medicine
1901 CLINCH AVE
KNOXVILLE, TN 37916
Knox County (865) 331-1111
MR. MARK WAYNE JACKSON CRNA
Nurse Anesthetist, Certified Registered
1901 CLINCH AVE
KNOXVILLE, TN 37916
Knox County (865) 331-1111
KELEIGH ANN GALLOWAY DNP, APRN, CRNA
Nurse Anesthetist, Certified Registered
1901 CLINCH AVE
KNOXVILLE, TN 37916
Knox County (865) 253-8667
ABBY MILILLO MSCCC-SLP
Speech-Language Pathologist
1901 CLINCH AVE
KNOXVILLE, TN 37916
Knox County (865) 331-1111

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 Nicholas Doiron's NPI number?

The NPI number for Nicholas Doiron is 1194990218. It was assigned to this individual provider in the NPPES registry on April 29, 2008.

Where is Nicholas Doiron located?

Nicholas Doiron practices at 1901 Clinch Ave, Knoxville, TN 37916. The listed phone number is (865) 255-1459.

What is Nicholas Doiron's specialty?

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

Is Nicholas Doiron enrolled in Medicare?

Yes. Nicholas Doiron 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 Nicholas Doiron's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nicholas Doiron reassigns Medicare benefits to 3 organizations: American Anesthesiology Of Tennessee, P.C. (Knoxville, TN), Covenant Anesthesia Group, PC (Oak Ridge, TN) and East Tennessee Ambulatory Surgery Center LLC (Johnson City, TN). 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 Nicholas Doiron's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nicholas Doiron accept?

Health plans from Cigna Healthcare list Nicholas Doiron 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 Nicholas Doiron affiliated with any hospitals?

According to CMS data, Nicholas Doiron is affiliated with Morristown Hamblen Hospital Association, Methodist Medical Center Of Oak Ridge, Leconte Medical Center, Fort Sanders Regional Medical Center and Parkwest Medical Center.

When was this NPI record last updated?

The NPPES record for Nicholas Doiron was last updated on October 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.