David Koller
Colon & Rectal Surgery Physician · Torrance, CA
David Koller is a colon & rectal surgery physician with a practice address in Torrance, California, and NPI 1417367517, issued on Apr 29, 2014. Check the license (California A182814, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David Koller
- Primary taxonomy
- Colon & Rectal Surgery Physician 208C00000X
- License numbers
- A182814 CA
CLP05173 RI
Self-reported in NPPES; status is on the state search - Practice location
- 23451 Madison St Ste 340, Torrance, CA 90505
- Phone
- (310) 373-6864
- Enumerated
- Apr 29, 2014
- Record last updated
- Jun 27, 2024
- Medicare enrollment
- Enrolled (PECOS I20221130000795); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At Houston, 2014
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest colon & rectal surgery physician records → All 198 in California → Look up another NPI →
Also registered at 23451 Madison St Ste 340
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Neil Bhayani, MDSurgical Oncology Physician1881874238
- Ann Callahan, MDSurgery Physician1093962847
- Stephen Doane, M.D.Surgical Critical Care Physician1942456322
- Michael Li, M.D.Surgery Physician1346531225
- David Litvak, MDSurgical Critical Care Physician1750458758
- Timothy MorleySurgery Physician1003348061
Verify David Koller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A182814Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% more Medicare Part D claims than the average colon & rectal surgery physician in 2024
247 Medicare Part D claims for 83 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D. 48 claims were for opioids.
Most prescribed
- Ibuprofen58 claims
- Oxycodone Hcl47 claims
- Metronidazole35 claims
- Neomycin Sulfate33 claims
- Gabapentin29 claims
- Nystatin11 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
- Cedars-Sinai Medical Care FoundationTorrance, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Koller among 198 colon & rectal surgery physician records in California
David Koller is one of 198 colon & rectal surgery physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 85% of them.
- NPI issued2014 · 85% of these records are older, 13% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated2014 · median 2002 among the 149 with a school on file
- Record last updated2024 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208C00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Colon & Rectal Surgery Physician providers in California
There are 198 colon & rectal surgery physician records in California.
All 198 in California → Every provider in Torrance → Colon & Rectal Surgery Physician nationwide →
The 8 colon & rectal surgery physician records with the nearest ZIP codes
- Vijay Muraliraj, MDTorrance, CA 905051295935757
- Ravin Kumar, M.D.Torrance, CA 905021194789875
- Katherine Lee, MDTorrance, CA 905021629450846
- Beverley Petrie, M.D.Torrance, CA 905021275544116
- Nana Pianim, MDHarbor City, CA 907101073661914
- Imad Shbeeb, MDLos Alamitos, CA 907201720063464
- Maziar Ghodsian, D.O.Beverly Hills, CA 902121063622181
- Zuri Murrell, M.D.Beverly Hills, CA 902111881625267
Common questions
What is David Koller's NPI number?
David Koller's National Provider Identifier (NPI) is 1417367517, issued on Apr 29, 2014. An NPI identifies a provider in billing; it is not a license.
Where is David Koller located?
The NPPES record lists a practice address at 23451 Madison St Ste 340, Torrance, CA, 90505. Phone: (310) 373-6864. Providers update this record themselves, so call before visiting.
How can I verify David Koller's license?
NPPES lists California license number A182814, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does David Koller prescribe under Medicare Part D?
In 2024, David Koller had 247 Medicare Part D claims for 83 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. 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.