Lewis Alvin Duncan, M.D.
Medical Oncology Physician · Longview, TX
Lewis Alvin Duncan, M.D. is a medical oncology physician with a practice address in Longview, Texas, and NPI 1821031253, issued on Jun 14, 2006. Check the license (Texas E1562, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Lewis Alvin Duncan
- Credential
- M.D.
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- E1562 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1300 N 4TH St, Longview, TX 75601
- Phone
- (903) 757-2122
- Enumerated
- Jun 14, 2006
- Record last updated
- Feb 18, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (903) 757-9475
- Medicaid ID
- 45716001 TX
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 547 in Texas → Look up another NPI →
Also registered at 1300 N 4TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marlena Alosi, DOInternal Medicine Physician1447829593
- Larry Frase, M.D.Medical Oncology Physician1942242995
- Miranda Gray, MSN, APRN, FNP-CFamily Nurse Practitioner1982358412
- Eileen Herbeck, R.PH.Oncology Pharmacist1841361318
- Joseph Hodges, M.D.Radiation Oncology Physician1144554577
- Lijo John, MDMedical Oncology Physician1295050037
Verify Lewis Alvin Duncan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license E1562Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average medical oncology physician in 2024
15 Medicare Part D claims, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D.
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: $48.70
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 3,343 providers of this specialty with any payment received $11,773.47 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.
Lewis Alvin Duncan among 547 medical oncology physician records in Texas
Lewis Alvin Duncan, M.D. is one of 547 medical oncology physician records with a practice address in Texas. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 45% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 76% of these records are
- Record last updated2008 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in Texas
There are 547 medical oncology physician records in Texas.
All 547 in Texas → Every provider in Longview → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Larry Frase, M.D.Longview, TX 756011942242995
- Lijo John, MDLongview, TX 756011295050037
- Neeraj Sharma, MDLongview, TX 756011851334759
- Matei Socoteanu, M.D.Longview, TX 756011629269774
- Nayyar Syed, MDPittsburg, TX 756861154411635
- Jayendra Patel, M.D.Texarkana, TX 755031063410637
- Sasha Davis, MDTyler, TX 757021194019075
- Thomas Gregory, M.D.Tyler, TX 757021174566624
Common questions
What is Lewis Alvin Duncan, M.D.'s NPI number?
Lewis Alvin Duncan, M.D.'s National Provider Identifier (NPI) is 1821031253, issued on Jun 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lewis Alvin Duncan, M.D. located?
The NPPES record lists a practice address at 1300 N 4TH St, Longview, TX, 75601. Phone: (903) 757-2122. Providers update this record themselves, so call before visiting.
How can I verify Lewis Alvin Duncan, M.D.'s license?
NPPES lists Texas license number E1562, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Lewis Alvin Duncan, M.D. prescribe under Medicare Part D?
In 2024, Lewis Alvin Duncan, M.D. had 15 Medicare Part D claims; the average among medical oncology physician prescribers was 703. 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.