Paul B. Koller, M.D.
Hematology (Internal Medicine) Physician · Duarte, CA
Paul B. Koller, M.D. is a hematology (internal medicine) physician with a practice address in Duarte, California, and NPI 1720340169, issued on Jun 12, 2012. Check the license (California A164997, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Paul B. Koller
- Credential
- M.D.
- Primary taxonomy
- Hematology (Internal Medicine) Physician 207RH0000X
- License numbers
- A164997 CA
BP10043098 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1500 E Duarte Road, Duarte, CA 91010
- Phone
- (626) 256-4673
- Enumerated
- Jun 12, 2012
- Record last updated
- Nov 10, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20191003002406); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 1500 E Duarte Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Idoroenyi Amanam, M.D.Hematology (Internal Medicine) Physician1205257920
- Andrew Artz, M.D., M.S.Hematology (Internal Medicine) Physician1306859772
- Brian Bowman, N.P.Gerontology Nurse Practitioner1770971418
- Ernest Han, MDGynecologic Oncology Physician1639247950
- Gregory Idos, M.D.Gastroenterology Physician1770769937
- Violetta Karpova, MDDiagnostic Radiology Physician1588981914
Verify Paul B. Koller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A164997Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% fewer Medicare Part D claims than the average hematology (internal medicine) physician in 2024
264 Medicare Part D claims for 33 beneficiaries, against an average of 496 among the 1,036 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims.
Most prescribed
- Acyclovir25 claims
- Idhifa23 claims
- Atovaquone15 claims
- Sulfamethoxazole-Trimethoprim15 claims
- Tibsovo14 claims
- Deferasirox12 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 99.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $5,567.15
9 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 721 providers of this specialty with any payment received $13,778.35 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
- City OF Hope Medical FoundationDuarte, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
61 hematology (internal medicine) physician records list a practice address in Duarte
They are 61 of the 1,287 NPPES records with a practice address in Duarte, and 175 hematology (internal medicine) physician records in California.
All 61 in Duarte → All 175 in California → Every provider in Duarte →
Other hematology (internal medicine) physician records in California
- John Adamson, MDSan Diego, CA1477504801
- Mhd Monzr Al Malki, M.D.Duarte, CA1043489362
- Ibrahim Aldoss, M.D.Duarte, CA1861692485
- Haris Ali, M.D.Duarte, CA1467672907
- Julio Alvarenga Thiebaud, M.D.Irvine, CA1457770497
- Joseph Alvarnas, M.D.Duarte, CA1558321745
- Idoroenyi Amanam, M.D.Duarte, CA1205257920
- Sally Arai, MDStanford, CA1881739530
- Ahmed Aribi, MDDuarte, CA1912024910
- Andrew Artz, M.D., M.S.Duarte, CA1306859772
Common questions
What is Paul B. Koller, M.D.'s NPI number?
Paul B. Koller, M.D.'s National Provider Identifier (NPI) is 1720340169, issued on Jun 12, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Paul B. Koller, M.D. located?
The NPPES record lists a practice address at 1500 E Duarte Road, Duarte, CA, 91010. Phone: (626) 256-4673. Providers update this record themselves, so call before visiting.
How can I verify Paul B. Koller, M.D.'s license?
NPPES lists California license number A164997, 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 Paul B. Koller, M.D. prescribe under Medicare Part D?
In 2024, Paul B. Koller, M.D. had 264 Medicare Part D claims for 33 beneficiaries; the average among hematology (internal medicine) physician prescribers was 496. Part D covers Medicare prescriptions only.
What is Paul B. Koller, M.D.'s MIPS final score?
The 2023 MIPS final score is 99.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.