Mason James Webb, MD, PHD
Hematology & Oncology Physician · Oklahoma City, OK
Mason James Webb, MD, PHD is a hematology & oncology physician with a practice address in Oklahoma City, Oklahoma, and NPI 1306306600, issued on Mar 22, 2019. Check the license (Oklahoma 45945, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Mason James Webb
- Credential
- MD, PHD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- 45945 OK
67817 MN
Self-reported in NPPES; status is on the state search - Practice location
- 800 NE 10TH St Ste B, Oklahoma City, OK 73104
- Phone
- (572) 244-0111
- Enumerated
- Mar 22, 2019
- Record last updated
- Jul 2, 2026
- Fax
- (572) 244-9984
- Medicare enrollment
- Enrolled (PECOS I20200922000604); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 800 NE 10TH St Ste B
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andre De Souza, M.DHematology & Oncology Physician1053676627
- Muhammad Furqan, M.DMedical Oncology Physician1306090220
- Yubin Kang, M.D.Hematology (Internal Medicine) Physician1205046927
- Angela Pinkston, APRN-CNPFamily Nurse Practitioner1205346814
- Mamie Thompson, RDRegistered Dietitian1609438159
Verify Mason James Webb in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
Search for license 45945Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
121 Medicare Part D claims for 39 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Cyclosporine Modified12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- Mayo ClinicRochester, MN
- OU Health Partners IncOklahoma City, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hematology & Oncology Physician providers in Oklahoma
There are 128 hematology & oncology physician records in Oklahoma.
Other hematology & oncology physician records in Oklahoma
- Sakher Abdullah, MDOklahoma City, OK1932111333
- Bilal Ahmad, M.DOklahoma City, OK1275845778
- Taha Al-Juhaishi, M.D.Oklahoma City, OK1205241262
- Bashar Alasad, M.D.Oklahoma City, OK1215988803
- Jess Armor, M.D.Oklahoma City, OK1922059666
- Matthew Armstrong, MDTulsa, OK1457363236
- Adam Asch, M.D.Oklahoma City, OK1154434405
- Adanma Anji Ayanambakkam AttanathiOklahoma City, OK1265813513
- Than Aye, MDLawton, OK1104053792
- Laila Babar, MDOklahoma City, OK1760907513
Common questions
What is Mason James Webb, MD, PHD's NPI number?
Mason James Webb, MD, PHD's National Provider Identifier (NPI) is 1306306600, issued on Mar 22, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Mason James Webb, MD, PHD located?
The NPPES record lists a practice address at 800 NE 10TH St Ste B, Oklahoma City, OK, 73104. Phone: (572) 244-0111. Providers update this record themselves, so call before visiting.
How can I verify Mason James Webb, MD, PHD's license?
NPPES lists Oklahoma license number 45945, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mason James Webb, MD, PHD prescribe under Medicare Part D?
In 2024, Mason James Webb, MD, PHD had 121 Medicare Part D claims for 39 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.