Dr. Amartej Merla, MD

  • Duarte, CA
  • Hematologist and oncologist
NPI1902097744PAC ID0840339370
Medicare services, 2024
59,378
Medicare patients, 2024
700
Part D claims, 2024
688
Publications
12
Hospital affiliations
4
Practice address
1500 Duarte Rd, Duarte, CA 91010
Practice phone
Call (626) 256-4673
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

City of Hope Comprehensive Cancer Center - Duarte

Duarte, California

See all 8 affiliations

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Dr. Amartej Merla is a hematologist and oncologist in Duarte, California

Dr. Merla practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California.

Dr. Merla's NPI, 1902097744, was assigned on August 7, 2007. Dr. Merla graduated from Andhra Medical College NTR in 2002. Dr. Merla holds California license 143527.

NPI and contact details
Medicare PAC ID
0840339370
NPI enumeration date
August 7, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(626) 256-4673
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
50
Medical school graduation
2002

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Amartej Merla practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California

Dr. Merla's primary practice is City of Hope Comprehensive Cancer Center - Duarte, at 1500 Duarte Rd, Duarte, CA 91010 in Los Angeles County. The practice phone is (626) 256-4673.

  • City of Hope Comprehensive Cancer Center - Duarte
    1500 Duarte Rd, Duarte, CA 91010 · Los Angeles CountyPhone(626) 256-4673

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Amartej Merla is affiliated with 7 sites of care and 1 medical group

Dr. Merla's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. Dr. Merla is also affiliated with Antelope Valley Medical Center. The medical group on file is City of Hope. Dmand AI also links Dr. Merla to 3 more hospitals, 1 group practice or clinic and 1 other site, each named with a free account.

See all 8 affiliations for Dr. Merla

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Amartej Merla's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Merla practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
City of Hope Comprehensive Cancer Center - DuarteAvailable with a free account
+6 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Amartej Merla is one of 1,502 hematologists and oncologists in California

Hematology and oncology is Dr. Merla's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Merla is board certified in hematology by the American Board of Internal Medicine. Dmand AI has Dr. Merla's licenses on file in 5 states: California, New York, New Jersey, Missouri and Pennsylvania.

Specialties and state licenses

  • Hematology and oncology, CaliforniaPrimaryLicense 143527 · 2016 to 2026 · taxonomy 207RH0003X
  • New York license2010 to 2016
  • New Jersey license2010 to 2013
  • Missouri license2009 to 2011
  • Pennsylvania license2006 to 2009

Clinical focus

Dmand AI lists breast cancer, chronic anemia, chronic leukemia, colorectal cancer, deep vein thrombosis (DVT), fluid and electrolyte imbalances, lung cancer and lymphoma among the conditions Dr. Merla treats.

Hematologists and oncologists near Dr. Merla

Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Amartej Merla billed Medicare for 59,378 services in 2024

CMS data shows 59,378 Medicare services from Dr. Merla across 38 procedure codes in 2024, for 700 Medicare patients. Medicare paid $923,366 for them.

Medicare services, 202459,378
Medicare patients700
Paid by Medicare$923,366
Procedure codes38

Dr. Merla's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Drugs given in the office
2023: 31,3452024: 56,49880%
Office and hospital visits
2023: 1,3252024: 1,4127%
Tests and treatments
2023: 9282024: 1,25335%
Other services
2023: 02024: 184
Surgery
2023: 02024: 31

Where Dr. Merla's Medicare services took place, 2024

  • In an office59,214100%
  • In a facility1640%

Dr. Merla compared with the California median for hematologists and oncologists, 2024

  • Dr. Merla
  • California median
Medicare services
59,378vs 93263.7 times
Medicare patients
700vs 2253.1 times
Part D claims
452vs 39415% above

Medians across 1,367 hematologists and oncologists in California with Dmand AI profiles that report each measure.

Dr. Merla's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Merla

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Amartej Merla treated 700 Medicare patients in 2024, average age 73

CMS counts 700 Medicare patients who saw Dr. Merla in 2024. The largest group is 65 to 74, with 307 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 34% are also on Medicaid. Their average risk score is 2.16, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Merla's median patient age at 69, with 52% women.

Medicare patients, 2024700
Average age73
Average risk score2.16
Also on Medicaid34%

Dr. Merla's Medicare patients by age, 2024

Dr. Merla's Medicare patients by sex, 2024

  • Women36853%
  • Men33247%

Chronic conditions among Dr. Merla's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis52%
  4. Cancer52%
  5. Diabetes42%
  6. Ischemic heart disease33%
  7. COPD31%
  8. Chronic kidney disease29%

Share of Medicare patients with each condition. A patient can have several.

Dr. Merla's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 69

Patient panel by sex, all payers

  • Women52%
  • Men47%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Amartej Merla wrote 688 Medicare Part D claims in 2024

In 2024, Dr. Merla wrote 688 Medicare Part D claims for 132 patients. 79% of them were for generic drugs. CMS names the drug for 452 of them, across 14 drugs with 11 or more claims each, at $723,120 in total drug cost. In 2023, CMS named 357 claims across 15 drugs.

Part D claims, 2024688
Drugs named by CMS14
Total drug cost$723,120
Part D patients132

Dr. Merla's Part D claims by kind of drug, 2024

  • Generic543 claims79%
  • Brand-name145 claims21%

Dr. Merla's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Merla's Part D claims, 2024

  • Opioids4%27 of 688 claims
  • Antibiotics2%11 of 688 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 3572024: 45227%

Drugs named by CMS: 14 in 2024, 15 in 2023.

See all prescribing by Dr. Merla

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Amartej Merla offers telehealth to Medicare patients

Dr. Merla accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Merla as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Amartej Merla has 12 publications on record

Dmand AI links 12 papers to Dr. Merla, published from 2012 to 2023. 2022 was the busiest year, with 3. The most frequent topics are Lung Neoplasms, Molecular Targeted Therapy and Tobacco Use Disorder. Dr. Merla has published most often in J Clin Med. Dr. Merla's most frequent co-authors are Tingting Tan, MD, PhD, Cary A. Presant, MD and Arya Amini, MD.

Papers12
Years published2012 to 2023

Dr. Merla's papers by year, 2012 to 2023

Topics Dr. Merla writes about most

  • Lung Neoplasms
  • Molecular Targeted Therapy
  • Tobacco Use Disorder

Dr. Merla's most frequent co-authors

Recent publications by Dr. Merla

See all 12 publications and co-authors

See who Dr. Merla researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Merla works with, so you can find a warm path to the right hematologists and oncologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Amartej Merla received $5,563 in industry payments from 2016 to 2024

CMS Open Payments shows 149 general payments to Dr. Merla from 29 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 55% of the total. Celgene Corporation paid the most, $2,462.

General payments to Dr. Merla by program year, 2016 to 2024

General payments to Dr. Merla by kind, 2016 to 2024

$5.6Kin total
  • Food and beverage$3,04855%
  • Consulting fees$1,50027%
  • Travel and lodging$74813%
  • Education$2675%

Companies that paid Dr. Merla the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Merla

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Amartej Merla graduated from Andhra Medical College NTR

Dr. Merla graduated from Andhra Medical College NTR in 2002.

  1. Medical schoolAndhra Medical College NTR
  2. Board certified in hematologyAmerican Board of Internal Medicine
  3. Board certified in medical oncologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Amartej Merla accepts plans from 12 insurance carriers

Dr. Merla is in network with 12 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Elevance
  • Blue Cross Blue Shield of Massachusetts
  • Molina
  • Alliant Health Plans
  • Blue Cross and Blue Shield of Kansas City
  • +4 more carriersWith a free account

Plan types Dr. Merla accepts, by number of carriers

  1. HMO7
  2. PPO7
  3. Medicare6
  4. EPO3
  5. POS3

Source: Dmand AI Insurance Network Data

Sources for Dr. Amartej Merla's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Amartej Merla

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Amartej Merla's NPI number?

Dr. Amartej Merla's NPI number is 1902097744. It was assigned on August 7, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Amartej Merla?

Dr. Amartej Merla is a hematologist and oncologist in Duarte, California. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).

Where does Dr. Amartej Merla practice?

Dr. Merla practices at 1500 Duarte Rd, Duarte, CA 91010. Dr. Merla's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. Dmand AI also links Dr. Merla to 3 hospitals, 1 group practice or clinic and 1 other site.

What is Dr. Amartej Merla's office phone number?

The practice phone on file for Dr. Merla is (626) 256-4673.

What is Dr. Amartej Merla's medical license number?

Dr. Merla holds California license 143527, one of the licenses on file in 5 states.

Which states has Dr. Amartej Merla been licensed in?

Dmand AI has state licenses on file for Dr. Merla in California (2016 to 2026), New York (2010 to 2016), New Jersey (2010 to 2013), Missouri (2009 to 2011) and Pennsylvania (2006 to 2009).

Which hospitals is Dr. Amartej Merla affiliated with?

Dr. Merla is affiliated with Antelope Valley Medical Center. Dmand AI links Dr. Merla to 3 more hospitals.

What medical group is Dr. Amartej Merla part of?

Dr. Merla is linked to City of Hope.

Does Dr. Amartej Merla accept Medicare?

Yes. CMS data shows Dr. Merla billed Medicare for 59,378 services in 2024, and Dr. Merla accepts Medicare assignment.

Does Dr. Amartej Merla offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Merla as offering telehealth services.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Amartej Merla see?

CMS counts 700 Medicare patients who saw Dr. Merla in 2024, with an average age of 73.

Is Dr. Amartej Merla board certified?

Yes. Dr. Merla is board certified in hematology by the American Board of Internal Medicine.

What services does Dr. Amartej Merla bill to Medicare?

In 2024, Dr. Merla's most billed Medicare services were injected or infused drug (J1439), injected or infused drug (J9271) and injected or infused drug (J0185).

Where did Dr. Amartej Merla go to medical school?

Dr. Merla graduated from Andhra Medical College NTR in 2002.

What drugs does Dr. Amartej Merla prescribe most?

In 2024 Medicare Part D data, Dr. Merla's most prescribed drugs by claims were Prednisone, Abiraterone Acetate and Ondansetron HCl.

Has Dr. Amartej Merla received payments from drug or device companies?

CMS Open Payments shows $5,563 in general payments to Dr. Merla from 29 companies from 2016 to 2024. The largest total came from Celgene Corporation.

How long has Dr. Amartej Merla been practicing?

Dr. Merla graduated from medical school in 2002, 24 years ago.

Does Dr. Amartej Merla do research?

Dmand AI links 12 publications to Dr. Merla, published from 2012 to 2023.

Who does Dr. Amartej Merla publish with?

Dr. Merla's most frequent co-authors are Tingting Tan, MD, PhD (5 shared papers), Cary A. Presant, MD (3 shared papers) and Arya Amini, MD (2 shared papers).

What insurance does Dr. Amartej Merla accept?

Dr. Merla is in network with 12 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 7. Check the plan with the practice before a visit.

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