WILLIAM KENNETH MASK M.D.
NPI 1215030507
Radiology - Diagnostic Radiology in Durham, NC

Q: What is William Mask's NPI number?

The NPI number for William Mask is 1215030507. It was assigned to this individual provider in the NPPES registry on September 5, 2006.

Q: What is William Mask's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Q: When was this NPI record last updated?

The NPPES record for William Mask was last updated on February 7, 2023. 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.

Active since September 05, 2006PECOS EnrolledAccepts Medicare Assignment

5921 BEECH BLUFF LN, DURHAM, NC 27705(504) 908-0337(866) 722-3757 Get Directions Write a Review

NPPES record last updated: February 7, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About William Kenneth Mask M.d. NPPES

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

WILLIAM KENNETH MASK M.D. (NPI 1215030507) is an individual diagnostic radiology provider in Durham, North Carolina, licensed in California (A48451) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Bronxcare Hospital Center, and is a graduate of Duke University School Of Medicine (1988).

NPPES Registry Identity

NPI1215030507

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameWILLIAM KENNETH MASKCredential: M.D.

Location Address5921 BEECH BLUFF LNDurham, NC 27705-8115

Mailing Address5921 Beech Bluff LnDurham, NC 27705-8115 · (504) 908-0337 · Fax (337) 706-8930

Phone(504) 908-0337

Fax(866) 722-3757

Sole ProprietorNo

Medical School CMSDuke University School Of MedicineGraduated 1988

Enumeration DateSeptember 5, 2006

Last NPPES UpdateFebruary 7, 2023

NPPES CertifiedJanuary 18, 2023

✔ NPI 1215030507 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

License✔ Licensed in CA · A48451

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

5921 BEECH BLUFF LN, Durham, NC 27705

Open in Google Maps ↗

Other Identifiers 1

Medicaid1670189LA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Cigna Healthcare, HMO Louisiana.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

William Kenneth Mask 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 ID2264452457

PECOS Enrollment IDI20181226001054, I20241004001878

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 William Mask reassigns Medicare billing to 14 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Knd Development 59 , LLC

43 mi

Hospitalist

2401 SOUTHSIDE BLVD
Greensboro, NC 27406

Reassigned Medicare billing, North Carolina enrollment
71 clinicians in this Medicare group

NPI 1619206133 (336) 271-2800

Empire State Radiology P C

449 mi

Diagnostic Radiology

1000 MONTAUK HWY
West Islip, NY 11795

Reassigned Medicare billing, Louisiana, North Carolina and New York enrollments
4 clinicians in this Medicare group

NPI 1255962783 (718) 223-4685

Radiology Associates Of Oxford - PA

606 mi

Diagnostic Radiology

2301 S LAMAR BLVD
Oxford, MS 38655

Reassigned Medicare billing, Louisiana enrollment

NPI 1750337143 (662) 232-8100

Claiborne County Hospital

742 mi

Emergency Medical Services

123 MCCOMB AVE
Port Gibson, MS 39150

Reassigned Medicare billing, Mississippi enrollment
69 clinicians in this Medicare group

NPI 1710238324 (601) 437-5141

North Oaks Medical Center, LLC

764 mi

Diagnostic Radiology

15790 PAUL VEGA MD DR, RADIOLOGY DEPARTMENT
Hammond, LA 70403

Reassigned Medicare billing, Louisiana enrollment
62 clinicians in this Medicare group

NPI 1164785648 (985) 230-1101

Jefferson Medical Clinic LLC

766 mi

Family Medicine

435 LAPALCO BLVD STE 1
Gretna, LA 70056

Reassigned Medicare billing, Louisiana enrollment
5 clinicians in this Medicare group

NPI 1952747602 (504) 392-4114

East Jefferson Family Practice L.L.C.

768 mi

Specialist

3848 VETERANS BLVD., SUITE 101
Metairie, LA 70002

Reassigned Medicare billing, Louisiana enrollment
7 clinicians in this Medicare group

NPI 1225085525 (504) 885-2505

Quynh Mai Clinic LLC

771 mi

Family Medicine

705 W ESPLANADE AVE
Kenner, LA 70065

Reassigned Medicare billing, Louisiana enrollment
5 clinicians in this Medicare group

NPI 1568416709 (504) 465-0185

Diagnostic Imaging Associates

877 mi

Diagnostic Radiology

1453 E BERT KOUNS INDUSTRIAL LOOP
Shreveport, LA 71105

Reassigned Medicare billing, North Carolina enrollment

NPI 1194807271 (318) 798-4300

Coastal Imaging Associates, PLLC

966 mi

Diagnostic Radiology

3080 COLLEGE ST
Beaumont, TX 77701

Reassigned Medicare billing, Louisiana and Texas enrollments
2 clinicians in this Medicare group

NPI 1952833717 (409) 728-7736

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 28

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.

X-ray of chest, 1 view 71045

A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.

774 services637 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.

177 services167 patients

Ct scan head or brain without contrast 70450

A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.

130 services128 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.

86 services82 patients

Ct scan of chest without contrast 71250

A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.

66 services65 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

61 services60 patients

Ultrasound of leg arteries or artery grafts 93925

An ultrasound of leg arteries or artery grafts is a non-invasive imaging test. It uses high-frequency sound waves to capture live images from inside your body, specifically your leg arteries or grafts. This helps in detecting any blockages or abnormalities.

51 services50 patients

Complete ultrasound scan of abdomen 76700

A complete ultrasound scan of the abdomen is a non-invasive imaging procedure. It uses sound waves to produce images of the organs in your abdomen, such as the liver, gallbladder, spleen, pancreas, and kidneys. It helps in diagnosing, monitoring, and planning treatments.

47 services46 patients

X-ray of knee, 3 views 73562

An X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.

43 services41 patients

X-ray of pelvis, 1-2 views 72170

An X-ray of the pelvis, 1-2 views, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the lower part of your torso. These images help to detect any abnormalities or injuries in your hip bones and surrounding structures.

38 services37 patients

X-ray of foot, minimum of 3 views 73630

An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.

38 services38 patients

X-ray of abdomen, 1 view 74018

An X-ray of the abdomen, 1 view, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the structures in your abdomen, such as the stomach, liver, and intestines. This can help identify issues like blockages, infections, or injuries.

38 services38 patients

Complete ultrasound scan behind abdominal cavity 76770

A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.

33 services31 patients

Ct scan of abdomen and pelvis with contrast 74177

A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.

31 services31 patients

Ultrasound of one leg arteries or artery grafts 93926

An ultrasound of leg arteries or artery grafts is a non-invasive test using sound waves to create images of your blood vessels. This helps doctors assess blood flow, identify blockages, and monitor the health of grafts.

31 services31 patients

X-ray of hip, 2-3 views 73502

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

30 services29 patients

Ct scan of abdomen and pelvis without contrast 74176

A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.

28 services28 patients

Ct scan of upper spine without contrast 72125

A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.

24 services24 patients

Ultrasound scan of head and neck soft tissue 76536

An ultrasound scan of the head and neck soft tissue is a non-invasive procedure that uses sound waves to create images of the soft tissues in these areas. It helps identify any abnormalities or issues, such as tumors, cysts, or infections. It's painless and doesn't involve radiation.

24 services24 patients

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

23 services23 patients

X-ray of ankle, minimum of 3 views 73610

An ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.

19 services17 patients

Ct scan of blood vessels of chest with contrast 71275

A CT scan of the chest with contrast is a non-invasive imaging test. It uses X-rays and a special dye to get detailed images of your blood vessels in the chest. This helps in diagnosing conditions related to heart and lungs.

18 services18 patients

X-ray of wrist, minimum of 3 views 73110

An X-ray of the wrist, minimum of 3 views, is a diagnostic procedure that uses radiation to create images of your wrist from different angles. This helps detect fractures, infections, or other abnormalities for accurate diagnosis and treatment planning.

15 services15 patients

X-ray of hand, minimum of 3 views 73130

An X-ray of the hand, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones in your hand from different angles. This helps in diagnosing fractures, infections, arthritis, or other abnormalities. It's quick and painless.

15 services15 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

15 services15 patients

X-ray of lower leg, 2 views 73590

An X-ray of the lower leg, 2 views, is a quick, painless test that produces images of the bones in your lower leg. It helps to identify fractures, infections, or diseases. Two different angles are used to provide a comprehensive view of the leg's structure.

13 services13 patients

X-ray of upper arm, minimum of 2 views 73060

An X-ray of the upper arm with a minimum of 2 views involves capturing images of your arm from different angles. This helps in assessing the bones and surrounding tissues for any abnormalities or injuries. It's a quick, painless procedure.

12 services12 patients

X-ray of thigh bone, minimum 2 views 73552

An X-ray of the thigh bone is a non-invasive imaging test. It involves passing a small amount of radiation through the thigh to produce images of the bone structure. At least two different angles are captured for a comprehensive view. This helps detect fractures, infections, or other abnormalities.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Bronxcare Hospital Center

Acute Care Hospitals · Bronx, NY

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330009

Location1276 Fulton AvenueBronx, NY 10456 · Bronx County

Emergency services Birthing friendly

Nyack Hospital

Acute Care Hospitals · Nyack, NY

2/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number330104

Location160 North Midland AvenueNyack, NY 10960 · Rockland County

Birthing friendly

Garnet Health Medical Center

Acute Care Hospitals · Middletown, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330126

Location707 East Main StreetMiddletown, NY 10940 · Orange County

Emergency services Birthing friendly

Montefiore New Rochelle Hospital

Acute Care Hospitals · New Rochelle, NY

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330184

Location16 Guion PlaceNew Rochelle, NY 10802 · Westchester County

Emergency services Birthing friendly

St John's Episcopal Hospital At South Shore

Acute Care Hospitals · Far Rockaway, NY

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330395

Location327 Beach 19th StreetFar Rockaway, NY 11691 · Queens County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 27705 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

$83.90 typical visit price

range $54.12 – $165.09

Typical copayment $20.97 (range $13.53 – $41.27)

Most-billed visit code 99203

Established Patient

$67.72 typical visit price

range $17.21 – $134.61

Typical copayment $16.93 (range $4.30 – $33.65)

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.

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.

Reported Quality Measures

Radiation Consideration for Adult CT: Utilization of Dose Lowering Techniques

Percentage of final reports for patients aged 18 years and older undergoing CT with documentation that one or more of the following dose reduction techniques were used: - Automated exposure control - Adjustment of the mA and/or kV according to patient size -…

100%448 patients

Radiology: Reminder System for Screening Mammograms

Percentage of patients undergoing a screening mammogram whose information is entered into a reminder system with a target due date for the next mammogram

100%215 patients

Radiology: Stenosis Measurement in Carotid Imaging Reports

Percentage of final reports for carotid imaging studies (neck magnetic resonance angiography [MRA], neck computed tomography angiography [CTA], neck duplex ultrasound, carotid angiogram) performed that include direct or indirect reference to measurements of…

100%22 patients

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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 Mask's NPI number?

The NPI number for William Mask is 1215030507. It was assigned to this individual provider in the NPPES registry on September 5, 2006.

Where is William Mask located?

William Mask practices at 5921 Beech Bluff Ln, Durham, NC 27705. The listed phone number is (504) 908-0337.

What is William Mask's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is William Mask enrolled in Medicare?

Yes. William Mask 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 William Mask's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Mask reassigns Medicare benefits to 14 organizations: Knd Development 59 , LLC (Greensboro, NC), Empire State Radiology P C (West Islip, NY), Radiology Associates Of Oxford - PA (Oxford, MS), Claiborne County Hospital (Port Gibson, MS), North Oaks Medical Center, LLC (Hammond, LA) and 9 more organizations, listed in the Medicare section above. 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 William Mask's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Mask accept?

Health plans from Blue Cross and Blue Shield of Texas, Cigna Healthcare and HMO Louisiana list William Mask 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 Mask affiliated with any hospitals?

According to CMS data, William Mask is affiliated with Bronxcare Hospital Center, Nyack Hospital, Garnet Health Medical Center, Montefiore New Rochelle Hospital and St John's Episcopal Hospital At South Shore.

When was this NPI record last updated?

The NPPES record for William Mask was last updated on February 7, 2023. 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.