Colt Williams, M.D.
Hematology & Oncology Physician · Reno, NV
Colt Williams, M.D. is a hematology & oncology physician with a practice address in Reno, Nevada, and NPI 1740712108, issued on Apr 3, 2017. Check the license (Nevada 23037, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Colt Williams
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- 23037 NV
67054 MN
Self-reported in NPPES; status is on the state search - Practice location
- 5423 Reno Corporate Dr, Reno, NV 89511
- Phone
- (775) 329-0222
- Enumerated
- Apr 3, 2017
- Record last updated
- Aug 30, 2023
- Fax
- (775) 329-3010
- Medicare enrollment
- Enrolled (PECOS I20230116000003); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 88 in Nevada → Look up another NPI →
Also registered at 5423 Reno Corporate Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Subramanyeswara Arekapudi, M.D, M.P.HHematology & Oncology Physician1366671943
- Vibeth Atienza, FNPNurse Practitioner1114220670
- Johanna Lee, APRNFamily Nurse Practitioner1245962869
- Darin Olde, APRNFamily Nurse Practitioner1699054478
- Vodur Reddy, M.D.Hematology & Oncology Physician1538109004
Verify Colt Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNevada State Board of Medical Examiners
Search for license 23037Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,011 Medicare Part D claims for 130 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims. 32 claims were for opioids.
Most prescribed
- Olanzapine69 claims
- Ondansetron Hcl47 claims
- Dexamethasone45 claims
- Prochlorperazine Maleate38 claims
- Keytruda34 claims
- Hydroxyurea29 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.
Industry payments in 2024: $2,252.21
74 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- John A Shields MD And Steven A Schiff MD A Professional CorporationReno, NV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Colt Williams among 88 hematology & oncology physician records in Nevada
Colt Williams, M.D. is one of 88 hematology & oncology physician records with a practice address in Nevada. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 94% of them.
- NPI issued2017 · 94% of these records are older, 5% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2017 · median 1995 among the 64 with a school on file
- Record last updated2023 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Nevada
There are 88 hematology & oncology physician records in Nevada.
All 88 in Nevada → Every provider in Reno → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Santhosh Ambika, MDReno, NV 895111174747323
- Subramanyeswara Arekapudi, M.D, M.P.HReno, NV 895111366671943
- Juan Cattoni, M.D.Reno, NV 895111881906121
- Emily Guerard, MDReno, NV 895111417190414
- Vodur Reddy, M.D.Reno, NV 895111538109004
- Sowjanya Reganti, M.D.,Reno, NV 895111356482020
- John Shields, M.D.Reno, NV 895111811912330
- Tejvir Singh, M.D.Reno, NV 895111932139136
Common questions
What is Colt Williams, M.D.'s NPI number?
Colt Williams, M.D.'s National Provider Identifier (NPI) is 1740712108, issued on Apr 3, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Colt Williams, M.D. located?
The NPPES record lists a practice address at 5423 Reno Corporate Dr, Reno, NV, 89511. Phone: (775) 329-0222. Providers update this record themselves, so call before visiting.
How can I verify Colt Williams, M.D.'s license?
NPPES lists Nevada license number 23037, as entered by the provider. Search the Nevada State Board of Medical Examiners at https://medboard.nv.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Colt Williams, M.D. prescribe under Medicare Part D?
In 2024, Colt Williams, M.D. had 1,011 Medicare Part D claims for 130 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.