DR. WILLIAM S DALLAS M.D.
NPI 1326024308
Surgery in Oak Ridge, TN

Active since December 21, 2005PECOS EnrolledAccepts Medicare Assignment
120 ADMINISTRATION RD, OAK RIDGE, TN 37830(865) 483-7030(865) 483-3954 Get Directions Write a Review

NPPES record last updated: October 3, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Oct 3, 2022, Sep 16, 2022, Aug 9, 2022 and 1 more (4 updates tracked since 2020).

About Dr. William S Dallas M.d. NPPES

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

DR. WILLIAM S DALLAS M.D. (NPI 1326024308) is an individual surgery provider in Oak Ridge, Tennessee, licensed in Tennessee (MD020500) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Roane Medical Center, and is a graduate of University Of Tennessee, Hsc, College Of Medicine (1988).

NPPES Registry Identity

NPI1326024308
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. WILLIAM S DALLASCredential: M.D.
Location Address120 ADMINISTRATION RDOak Ridge, TN 37830-8822
Mailing Address120 Administration RdOak Ridge, TN 37830-8822 · (865) 483-7030 · Fax (865) 483-3954
Fax(865) 483-3954
Sole ProprietorNo
Medical School CMSUniversity Of Tennessee, Hsc, College Of MedicineGraduated 1988
Enumeration DateDecember 21, 2005
Last NPPES UpdateOctober 3, 20224 updates tracked since enumeration
NPPES CertifiedOctober 3, 2022
NPI 1326024308 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License Licensed in TN · MD020500
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Also ListedSurgery · Vascular SurgeryTaxonomy 2086S0129X · License MD020500 (TN)
120 ADMINISTRATION RD, Oak Ridge, TN 37830

Other Identifiers 1

MedicaidQ009776TN

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. William S Dallas M.d. 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 ID5496804189
PECOS Enrollment IDI20100803000739
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.

Areas of Expertise CMS Part B claims 12

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
158 services116 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
86 services35 patients
Ultrasound study of one arm or leg veins with compression and maneuvers 93971
This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.
84 services79 patients
Ultrasound study of arm or leg veins with compression and maneuvers 93970
An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.
74 services72 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
64 services64 patients
Ultrasound of both sides of head and neck blood flow 93880
An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.
60 services59 patients

Hospital Affiliations CMS Care Compare 3

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

Roane Medical Center

Acute Care Hospitals · Harriman, TN
5/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number440031
Location8045 Roane Medical Center DriveHarriman, TN 37748 · Roane County
Emergency services

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

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37830 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
$81.53 typical visit price
range $52.64 – $160.89
Typical copayment $20.38 (range $13.16 – $40.22)
Most-billed visit code 99203
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 7

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

Surgery
120 ADMINISTRATION RD
OAK RIDGE, TN 37830
Surgery
120 ADMINISTRATION RD
OAK RIDGE, TN 37830
Surgery
120 ADMINISTRATION RD
OAK RIDGE, TN 37830
Surgery
120 ADMINISTRATION RD
OAK RIDGE, TN 37830
Surgery
120 ADMINISTRATION RD
OAK RIDGE, TN 37830
Surgery
120 ADMINISTRATION RD
OAK RIDGE, TN 37830
Physician Assistant
120 ADMINISTRATION RD
OAK RIDGE, TN 37830

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 William Dallas's NPI number?

The NPI number for William Dallas is 1326024308. It was assigned to this individual provider in the NPPES registry on December 21, 2005.

Where is William Dallas located?

William Dallas practices at 120 Administration Rd, Oak Ridge, TN 37830. The listed phone number is (865) 483-7030.

What is William Dallas's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is William Dallas enrolled in Medicare?

Yes. William Dallas 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.

What insurance does William Dallas accept?

Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Magnolia Health, Ambetter of Alabama and Ambetter of North Carolina and 2 other insurers list William Dallas 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 William Dallas affiliated with any hospitals?

According to CMS data, William Dallas is affiliated with Roane Medical Center, Methodist Medical Center Of Oak Ridge and Fort Sanders Regional Medical Center.

When was this NPI record last updated?

The NPPES record for William Dallas was last updated on October 3, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.