Amartej Merla, MD
Hematology & Oncology Physician · Lancaster, CA
Amartej Merla, MD is a hematology & oncology physician with a practice address in Lancaster, California, and NPI 1902097744, issued on Aug 7, 2007. Check the license (California 143527, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Amartej Merla
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 143527 CA
Self-reported in NPPES; status is on the state search - Practice location
- 44151 15TH St W, Lancaster, CA 93534
- Phone
- (661) 902-5600
- Enumerated
- Aug 7, 2007
- Record last updated
- May 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (661) 951-0686
- Medicare enrollment
- Enrolled (PECOS I20160824001606); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 44151 15TH St W
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Weston Bush, M.D., M.P.H.Surgery Physician1417417692
- Jill Jepson, FNP-CFamily Nurse Practitioner1023132990
- Isaac Paz, MDSurgery Physician1417050063
- Hans Schoellhammer, MDSurgical Oncology Physician1861684938
- Kevin Yoon, M.D.Medical Oncology Physician1972092674
Verify Amartej Merla in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 143527Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
688 Medicare Part D claims for 132 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. 27 claims were for opioids.
Most prescribed
- Prednisone78 claims
- Abiraterone Acetate65 claims
- Ondansetron Hcl59 claims
- Anastrozole45 claims
- Exemestane33 claims
- Prochlorperazine Maleate26 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: $124.99
1 payment: food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 8,560 providers of this specialty with any payment received $7,481.41 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).
Amartej Merla among 1,583 hematology & oncology physician records in California
Amartej Merla, MD is one of 1,583 hematology & oncology physician records with a practice address in California. 83% 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 46% of them.
- NPI issued2007 · 46% of these records are older, 40% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2002 · median 2003 among the 1,124 with a school on file
- Record last updated2021 · 58% 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 California 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 California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in Lancaster → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Hannah Asghari, MDLancaster, CA 935341891114583
- Susan Lawrence, MDLancaster, CA 935341275653065
- Seyed Mohammad Reza Monemian, M.DLancaster, CA 935341295953685
- Neha Patil, MDLancaster, CA 935341568874790
- Tanyanika Phillips, MDLancaster, CA 935341003952151
- Neeraj Agnihotri, MDPalmdale, CA 935511598951873
- Ronald Miller, M.D.Palmdale, CA 935511164503926
- Mukund Shah, M.D.Palmdale, CA 935511801977632
Common questions
What is Amartej Merla, MD's NPI number?
Amartej Merla, MD's National Provider Identifier (NPI) is 1902097744, issued on Aug 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Amartej Merla, MD located?
The NPPES record lists a practice address at 44151 15TH St W, Lancaster, CA, 93534. Phone: (661) 902-5600. Providers update this record themselves, so call before visiting.
How can I verify Amartej Merla, MD's license?
NPPES lists California license number 143527, 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 Amartej Merla, MD prescribe under Medicare Part D?
In 2024, Amartej Merla, MD had 688 Medicare Part D claims for 132 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Amartej Merla, MD'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.