DR. THOMAS CLAYTON WILLIAMSON JR. M.D.
NPI 1023429941
Internal Medicine - Hematology & Oncology in Winston Salem, NC

Active since May 13, 2014PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
1 MEDICAL CENTER BLVD, WINSTON SALEM, NC 27157(336) 716-6777 Get Directions Write a Review

NPPES record last updated: September 14, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Thomas Clayton Williamson Jr. M.d. NPPES

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

DR. THOMAS CLAYTON WILLIAMSON JR. M.D. (NPI 1023429941) is an individual hematology & oncology provider in Winston Salem, North Carolina, licensed in Mississippi (24656) and active in the NPI registry since May 2014. He is enrolled in Medicare PECOS, is affiliated with St Dominic-jackson Memorial Hospital, and is a graduate of University Of North Carolina At Chapel Hill School Of Medicine (2014).

NPPES Registry Identity

NPI1023429941
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameDR. THOMAS CLAYTON WILLIAMSON JR.Credential: M.D.
Location Address1 MEDICAL CENTER BLVDWinston Salem, NC 27157-0001
Mailing Address1227 N State St Ste 101Jackson, MS 39202-2002 · (601) 355-2487
Sole ProprietorNo
Medical School CMSUniversity Of North Carolina At Chapel Hill School Of MedicineGraduated 2014
Enumeration DateMay 13, 2014
Last NPPES UpdateSeptember 14, 2023
NPPES CertifiedJanuary 8, 2021
NPI 1023429941 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License Licensed in MS · 24656
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
1 MEDICAL CENTER BLVD, Winston Salem, NC 27157

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. Thomas Clayton Williamson Jr. 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 ID7911225255
PECOS Enrollment IDI20170627000172
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 59

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, pembrolizumab, 1 mg J9271
Pembrolizumab is a medication given via injection to help your body's immune system fight certain types of cancer. It's typically administered in a hospital or clinic by a healthcare professional.
27,400 services32 patients
Injection, nivolumab, 1 mg J9299
Nivolumab is a medication given via injection, often used in cancer treatment. It works by helping your immune system fight the cancer cells. The dosage is measured in milligrams (mg), with 1 mg being a common dose.
24,000 services12 patients
Injection, aprepitant, 1 mg J0185
Aprepitant injection is a medication used to prevent nausea and vomiting caused by chemotherapy. It works by blocking certain substances in the brain that trigger these symptoms. The dosage is based on your medical condition and response to treatment.
13,520 services37 patients
Injection, denosumab, 1 mg J0897
Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.
9,600 services44 patients
Injection, ferric derisomaltose, 10 mg J1437
Ferric derisomaltose is an iron replacement product. It's given as an injection to treat iron deficiency anemia, a condition where the body lacks enough iron. The injection helps increase iron in your body to healthy levels.
5,600 services46 patients
Injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mg J1568
This procedure involves an intravenous injection of Octagam, a liquid immune globulin. It is a blood product that helps your body fight off infections. It's given through a vein (IV) and each dose contains 500 mg of the medication.
4,910 services15 patients

Hospital Affiliations CMS Care Compare 4

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

St Dominic-Jackson Memorial Hospital

Acute Care Hospitals · Jackson, MS
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number250048
Location969 Lakeland DrJackson, MS 39216 · Hinds County
Emergency services Birthing friendly

King's Daughters Medical Center-Brookhaven

Acute Care Hospitals · Brookhaven, MS
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number250057
Location427 Highway 51 NorthBrookhaven, MS 39601 · Lincoln County
Emergency services Birthing friendly

Mississippi Baptist Medical Center

Acute Care Hospitals · Jackson, MS
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number250102
Location1225 N State StJackson, MS 39202 · Hinds County
Emergency services Birthing friendly

S E Lackey Memorial Hospital

Critical Access Hospitals · Forest, MS
OwnershipVoluntary non-profit - Private
CMS Certification Number251300
Location330 N Broad StreetForest, MS 39074 · Scott County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 27157 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
$165.09 typical visit price
range $54.12 – $165.09
Typical copayment $41.27 (range $13.53 – $41.27)
Most-billed visit code 99205
Established Patient
$95.94 typical visit price
range $17.21 – $134.61
Typical copayment $23.98 (range $4.30 – $33.65)
Most-billed visit code 99214
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.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality97.5
Improvement Activities40

Reported Quality Measures

Advance Care Plan
100%1,025 patients5/55-star benchmark: 100%
Oncology: Medical and Radiation - Pain Intensity Quantified
100%703 patients5/55-star benchmark: 100%
Oncology: Medical and Radiation - Plan of Care for Pain
100%99 patients5/55-star benchmark: 100%
Percentage of Patients Who Died from Cancer Receiving Systemic Cancer-Directed Therapy in the Last 14 Days of Life (lower score better)
Lower rates are better for this measure.
10%31 patients
Preventive Care and Screening: Screening for Depression and Follow-Up Plan
100%1,643 patients5/55-star benchmark: 97%
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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Capecitabine, oral, 500 mg J8521
Treatment-Treatment - Miscellaneous · category RX029N
1 supplier23 claims1,484 services$0.58 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
1 supplier18 claims18 services$14.76 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

Obstetrics & Gynecology
1 MEDICAL CENTER BLVD
WINSTON-SALEM, NC 27157
Student in an Organized Health Care Education/Training Program
1 MEDICAL CENTER BLVD
WINSTON SALEM, NC 27157
Student in an Organized Health Care Education/Training Program
1 MEDICAL CENTER BLVD
WINSTON SALEM, NC 27157
Student in an Organized Health Care Education/Training Program
1 MEDICAL CENTER BLVD
WINSTON SALEM, NC 27157
Student in an Organized Health Care Education/Training Program
1 MEDICAL CENTER BLVD
WINSTON SALEM, NC 27157
Nurse Practitioner (Family)
1 MEDICAL CENTER BLVD
WINSTON SALEM, NC 27157
Student in an Organized Health Care Education/Training Program
1 MEDICAL CENTER BLVD
WINSTON SALEM, NC 27157
Genetic Counselor, MS
1 MEDICAL CENTER BLVD
WINSTON SALEM, NC 27157

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 Thomas Williamson's NPI number?

The NPI number for Thomas Williamson is 1023429941. It was assigned to this individual provider in the NPPES registry on May 13, 2014.

Where is Thomas Williamson located?

Thomas Williamson practices at 1 Medical Center Blvd, Winston Salem, NC 27157. The listed phone number is (336) 716-6777.

What is Thomas Williamson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Thomas Williamson enrolled in Medicare?

Yes. Thomas Williamson 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 Thomas Williamson accept?

Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Magnolia Health, Ambetter of Alabama and Ambetter of Tennessee and 4 other insurers list Thomas Williamson 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 Thomas Williamson affiliated with any hospitals?

According to CMS data, Thomas Williamson is affiliated with St Dominic-Jackson Memorial Hospital, King's Daughters Medical Center-Brookhaven, Mississippi Baptist Medical Center and S E Lackey Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Thomas Williamson was last updated on September 14, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.