Chamath R. De Silva, MD
Hematology & Oncology Physician · Lafayette, CO
Chamath R. De Silva, MD is a hematology & oncology physician with a practice address in Lafayette, Colorado, and NPI 1568588184, issued on Mar 22, 2007. Check the license (Colorado 43301, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Chamath R. De Silva
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 43301 CO
Self-reported in NPPES; status is on the state search - Practice location
- 280 Exempla Cir, Lafayette, CO 80026
- Phone
- (303) 338-3800
- Enumerated
- Mar 22, 2007
- Record last updated
- Jun 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 93029039 CO
- Medicare enrollment
- Enrolled (PECOS I20260113003348); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 212 in Colorado → Look up another NPI →
Also registered at 280 Exempla Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Phyllis Acker, RNRheumatology Physician1821125709
- Brian AcresAmbulatory Care Registered Nurse1174865752
- Jennifer AirhartNurse's Aide1336276310
- Alice Albert, ODOptometrist1639206683
- Jill Allen, R.N.Registered Nurse1114043726
- Sandra AllenNurse's Aide1760519789
Verify Chamath R. De Silva in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 43301Check 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% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
743 Medicare Part D claims for 138 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Prednisone101 claims
- Lenalidomide83 claims
- Abiraterone Acetate78 claims
- Anastrozole63 claims
- Acyclovir42 claims
- Dexamethasone39 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 one group practice
- North Platte Nebraska Hospital CorporationImperial, NE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chamath R. De Silva among 212 hematology & oncology physician records in Colorado
Chamath R. De Silva, MD is one of 212 hematology & oncology physician records with a practice address in Colorado. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 49% of them.
- NPI issued2007 · 49% of these records are older, 34% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1992 · median 2004 among the 150 with a school on file
- Record last updated2021 · 59% 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 Colorado 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 Colorado
There are 212 hematology & oncology physician records in Colorado.
All 212 in Colorado → Every provider in Lafayette → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Jennifer Eisenstein, MDLafayette, CO 800261730410671
- Thomas Hyde, MDLafayette, CO 800261386760999
- Steven Kallick, M.D.Lafayette, CO 800261720118599
- Meghan Liel, M.D.Lafayette, CO 800261235347410
- Eric Schwartz, MDLafayette, CO 800261952750648
- Kelly SmithLafayette, CO 800261407967342
- Russell Tolley, MDLouisville, CO 800271851375414
- Srinidhi Radhakrishnan, MDWestminster, CO 800231578022521
Common questions
What is Chamath R. De Silva, MD's NPI number?
Chamath R. De Silva, MD's National Provider Identifier (NPI) is 1568588184, issued on Mar 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Chamath R. De Silva, MD located?
The NPPES record lists a practice address at 280 Exempla Cir, Lafayette, CO, 80026. Phone: (303) 338-3800. Providers update this record themselves, so call before visiting.
How can I verify Chamath R. De Silva, MD's license?
NPPES lists Colorado license number 43301, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Chamath R. De Silva, MD prescribe under Medicare Part D?
In 2024, Chamath R. De Silva, MD had 743 Medicare Part D claims for 138 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.