David L. Janssen, M.D.
Therapeutic Radiology Physician · Victoria, TX
David L. Janssen, M.D. is a therapeutic radiology physician with a practice address in Victoria, Texas, and NPI 1093894198, issued on Nov 2, 2006. Check the license (Texas G3494, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- David L. Janssen
- Credential
- M.D.
- Primary taxonomy
- Therapeutic Radiology Physician 2085R0203X
- License number
- G3494 TX
Self-reported in NPPES; status is on the state search - Practice location
- 2807 N Ben Wilson St, Victoria, TX 77901
- Phone
- (361) 576-9812
- Enumerated
- Nov 2, 2006
- Record last updated
- Feb 2, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (361) 574-1580
- Medicaid IDs
- 125696802 TX
125696801 TX - Medicare enrollment
- Enrolled (PECOS I20100302000967); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical Branch At Galveston, 1982
- Entity
- Type 1 · individual
8 nearest therapeutic radiology physician records → All 23 in Texas → Look up another NPI →
Also registered at 2807 N Ben Wilson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karl Chen, M.D.Therapeutic Radiology Physician1538248695
Verify David L. Janssen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license G3494Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average therapeutic radiology physician in 2024
58 Medicare Part D claims for 24 beneficiaries, against an average of 161 among the 108 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl26 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
- Citizens Medical Center County OF VictoriaVictoria, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David L. Janssen among 23 therapeutic radiology physician records in Texas
David L. Janssen, M.D. is one of 23 therapeutic radiology physician records with a practice address in Texas. 39% 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 17% of them.
- NPI issued2006 · 17% of these records are older, 26% newer
- In a Medicare fileYes · 39% of these records are
- In the CMS Doctors and Clinicians fileYes · 30% of these records are
- Record last updated2010 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0203X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Therapeutic Radiology Physician providers in Texas
There are 23 therapeutic radiology physician records in Texas.
All 23 in Texas → Every provider in Victoria → Therapeutic Radiology Physician nationwide →
The 8 therapeutic radiology physician records with the nearest ZIP codes
- Karl Chen, M.D.Victoria, TX 779011538248695
- Michael Dullea, M.D.Fort Sam Houston, TX 782341013908896
- Martin Colman, MDGalveston, TX 775551174685630
- Sandra Hatch, MDGalveston, TX 775551124180690
- Ivan Kessel, MDGalveston, TX 775551407918980
- Charles Clayton, M.D.Houston, TX 770551710082920
- Patricia Eifel, M.D.Houston, TX 770301548361603
- Deborah Kuban, M.D.Houston, TX 770301376648188
Common questions
What is David L. Janssen, M.D.'s NPI number?
David L. Janssen, M.D.'s National Provider Identifier (NPI) is 1093894198, issued on Nov 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David L. Janssen, M.D. located?
The NPPES record lists a practice address at 2807 N Ben Wilson St, Victoria, TX, 77901. Phone: (361) 576-9812. Providers update this record themselves, so call before visiting.
How can I verify David L. Janssen, M.D.'s license?
NPPES lists Texas license number G3494, 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 David L. Janssen, M.D. prescribe under Medicare Part D?
In 2024, David L. Janssen, M.D. had 58 Medicare Part D claims for 24 beneficiaries; the average among therapeutic radiology physician prescribers was 161. 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.