Dr. Gurkamal Singh Chatta, MD
- Medicare services, 2024
- 203
- Medicare patients, 2024
- 99
- Part D claims, 2024
- 64
- Publications
- 38
- Clinical trials
- 8
- Practice address
- 344 S Hauser Blvd, Los Angeles, CA 90036
- Practice phone
- Call (716) 845-2300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Roswell Park Cancer Institute
Los Angeles, California
Find Dr. Chatta's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Gurkamal Singh Chatta is a medical oncologist in Los Angeles, California
Dr. Chatta practices at Roswell Park Cancer Institute in Los Angeles, California.
Dr. Chatta's NPI, 1114999083, was assigned on February 6, 2006. Dr. Chatta holds New York license 284329.
- NPI
- 1114999083NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1951425263
- NPI enumeration date
- February 6, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (716) 845-2300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gurkamal Singh Chatta practices at Roswell Park Cancer Institute in Los Angeles, California
Dr. Chatta's primary practice is Roswell Park Cancer Institute, at 344 S Hauser Blvd, Los Angeles, CA 90036 in Los Angeles County. The practice phone is (716) 845-2300.
- Roswell Park Cancer Institute344 S Hauser Blvd, Los Angeles, CA 90036 · Los Angeles CountyPhone(716) 845-2300
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gurkamal Singh Chatta is affiliated with 4 sites of care and 2 medical groups
Dr. Chatta's primary practice is Roswell Park Cancer Institute in Los Angeles, California. Dr. Chatta is also affiliated with Roswell Park Comprehensive Cancer Center. The medical group on file is Roswell Park Comprehensive Cancer Center. Dmand AI also links Dr. Chatta to 2 more hospitals and 1 medical group, each named with a free account.
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. Gurkamal Singh Chatta's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chatta practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Roswell Park Cancer Institute | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gurkamal Singh Chatta is one of 415 medical oncologists in California
Medical oncology is Dr. Chatta's primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dmand AI has Dr. Chatta's licenses on file in 3 states: New York, Pennsylvania and Washington.
Specialties and state licenses
- Medical oncology, New YorkPrimary
- Specialist, Pennsylvania
- Hematology and oncology, Washington
Medical oncologists near Dr. Chatta
Counts of medical 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. Gurkamal Singh Chatta billed Medicare for 203 services in 2024
CMS data shows 203 Medicare services from Dr. Chatta across 3 procedure codes in 2024, all of them office visits, for 99 Medicare patients. Medicare paid $14,600 for them.
Dr. Chatta's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2442024: 20317%
Where Dr. Chatta's Medicare services took place, 2024
- In an office9647%
- In a facility10753%
Dr. Chatta compared with the California median for medical oncologists, 2024
- Dr. Chatta
- California median
- Medicare services
- 203vs 49659% below
- Medicare patients
- 99vs 15436% below
- Part D claims
- 15vs 14490% below
Medians across 358 medical oncologists in California with Dmand AI profiles that report each measure.
Dr. Chatta'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chatta and other medical oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gurkamal Singh Chatta treated 99 Medicare patients in 2024, average age 75
CMS counts 99 Medicare patients who saw Dr. Chatta in 2024. The largest group is 65 to 74, with 43 patients. 75% of them have cancer, and 75% have high blood pressure. 15% are also on Medicaid. Their average risk score is 2.42, 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. Chatta's median patient age at 74, with 11% women.
Dr. Chatta's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Chatta's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol75%
- Arthritis32%
- Ischemic heart disease32%
- Diabetes23%
- Chronic kidney disease22%
- Anxiety18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chatta's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women11%
- Men88%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gurkamal Singh Chatta wrote 64 Medicare Part D claims in 2024
In 2024, Dr. Chatta wrote 64 Medicare Part D claims for 40 patients. 97% of them were for generic drugs. CMS names the drug for 15 of them, across 1 drug with 11 or more claims each, at $86 in total drug cost. In 2023, CMS named 22 claims across 1 drug.
Dr. Chatta's Part D claims by kind of drug, 2024
- Generic62 claims97%
- Brand-name and other2 claims3%
Dr. Chatta'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 222024: 1532%
Drugs named by CMS: 1 in 2024, 1 in 2023.
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. Gurkamal Singh Chatta offers telehealth to Medicare patients
Dr. Chatta accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chatta as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Gurkamal Singh Chatta has 38 publications on record
Dmand AI links 38 papers to Dr. Chatta, published from 2012 to 2025. 2024 was the busiest year, with 6. The most frequent topics are Urinary Bladder Neoplasms, Prostatic Neoplasms and Antineoplastic Combined Chemotherapy Protocols. Dr. Chatta has published most often in bioRxiv. Dr. Chatta's most frequent co-authors are Khurshid Ahad Guru, MD, Igor Puzanov, MD and Dharmesh Gopalakrishnan, MD.
Dr. Chatta's papers by year, 2016 to 2025
Topics Dr. Chatta writes about most
- Urinary Bladder Neoplasms
- Prostatic Neoplasms
- Antineoplastic Combined Chemotherapy Protocols
- Chemotherapy, Adjuvant
- Neoplasm Invasiveness
- Signal Transduction
- Cell Proliferation
- Gene Expression Regulation, Neoplastic
Dr. Chatta's most frequent co-authors
- Khurshid Ahad Guru, MD6 shared papers
- Igor Puzanov, MD6 shared papers
- Dharmesh Gopalakrishnan, MD5 shared papers
Recent publications by Dr. Chatta
N Engl J Med
See who Dr. Chatta researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chatta works with, so you can find a warm path to the right medical oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gurkamal Singh Chatta has worked on 8 clinical trials
Dmand AI links Dr. Chatta to 8 clinical trials, 3 of them phase 1 studies. 1 is still active or recruiting. Conditions studied include Prostatic Neoplasms, Prostatic Diseases and Carcinoma, Transitional Cell. Roswell Park Cancer Institute sponsors the most, 3. Open Payments lists research payments to Dr. Chatta that name 1 trial.
Clinical trials with Dr. Chatta by phase
- 3Phase 1: 3 trials
- 1Phase 1/2: 1 trial
- 2Phase 2: 2 trials
- 1Phase 2/3: 1 trial
- NonePhase 3: no trials
- NonePhase 4: no trials
Conditions in Dr. Chatta's trials
- Prostatic Neoplasms
- Prostatic Diseases
- Carcinoma, Transitional Cell
- Ureteral Neoplasms
- Melanoma
Investigators on the most trials with Dr. Chatta
- Nabil Adra, MD2 shared trials
- Scott E. Delacroix, MD2 shared trials
- Gretchen Ann Gignac, MD2 shared trials
Recent clinical trials with Dr. Chatta
Phase II Trial of Atezolizumab in BCG-Unresponsive Non-Muscle Invasive Bladder Cancer (opens in a new tab)
Phase II-III Trial of Adjuvant Radiotherapy and Androgen Deprivation Following Radical Prostatectomy With or Without Adjuvant Docetaxel (opens in a new tab)
A Phase 1b Clinical Trial: Improving Outcomes With Androgen Pathway Inhibitors by Targeting DNA Methyltransferase Activity (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Gurkamal Singh Chatta received $24,935 in industry payments from 2016 to 2024
CMS Open Payments shows 48 general payments to Dr. Chatta from 15 drug and device companies from 2016 to 2024. Education make up the largest share, 40% of the total. AstraZeneca Pharmaceuticals LP paid the most, $12,960. It also lists 2 research payments totaling $720 from 2024 to 2025, naming 1 clinical trial.
General payments to Dr. Chatta by program year, 2016 to 2024
General payments to Dr. Chatta by kind, 2016 to 2024
- Education$9,85440%
- Speaker and faculty fees$7,45030%
- Consulting fees$3,22713%
- Travel and lodging$2,46910%
- Food and beverage$1,9358%
Companies that paid Dr. Chatta the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Gurkamal Singh Chatta's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gurkamal Singh Chatta
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. Gurkamal Singh Chatta's NPI number?
Dr. Gurkamal Singh Chatta's NPI number is 1114999083. It was assigned on February 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gurkamal Singh Chatta?
Dr. Gurkamal Singh Chatta is a medical oncologist in Los Angeles, California. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).
Where does Dr. Gurkamal Singh Chatta practice?
Dr. Chatta practices at 344 S Hauser Blvd, Los Angeles, CA 90036. Dr. Chatta's primary practice is Roswell Park Cancer Institute in Los Angeles, California. Dmand AI also links Dr. Chatta to 2 hospitals and 1 medical group.
What is Dr. Gurkamal Singh Chatta's office phone number?
The practice phone on file for Dr. Chatta is (716) 845-2300.
What is Dr. Gurkamal Singh Chatta's medical license number?
Dr. Chatta holds New York license 284329, one of the licenses on file in 3 states.
Which states has Dr. Gurkamal Singh Chatta been licensed in?
Dmand AI has state licenses on file for Dr. Chatta in New York, Pennsylvania and Washington.
Which hospitals is Dr. Gurkamal Singh Chatta affiliated with?
Dr. Chatta is affiliated with Roswell Park Comprehensive Cancer Center. Dmand AI links Dr. Chatta to 2 more hospitals.
What medical group is Dr. Gurkamal Singh Chatta part of?
Dr. Chatta is linked to Roswell Park Comprehensive Cancer Center. Dmand AI links Dr. Chatta to 1 more medical group.
Does Dr. Gurkamal Singh Chatta accept Medicare?
Yes. CMS data shows Dr. Chatta billed Medicare for 203 services in 2024, and Dr. Chatta accepts Medicare assignment.
Does Dr. Gurkamal Singh Chatta offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chatta as offering telehealth services.
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. Gurkamal Singh Chatta see?
CMS counts 99 Medicare patients who saw Dr. Chatta in 2024, with an average age of 75.
What services does Dr. Gurkamal Singh Chatta bill to Medicare?
In 2024, Dr. Chatta's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and office visit, new patient (99204).
What drugs does Dr. Gurkamal Singh Chatta prescribe most?
In 2024 Medicare Part D data, Dr. Chatta's most prescribed drugs by claims were Prednisone.
Has Dr. Gurkamal Singh Chatta received payments from drug or device companies?
CMS Open Payments shows $24,935 in general payments to Dr. Chatta from 15 companies from 2016 to 2024. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Gurkamal Singh Chatta been practicing?
Dr. Chatta graduated from medical school in 1981, 45 years ago.
Does Dr. Gurkamal Singh Chatta do research?
Dmand AI links 38 publications to Dr. Chatta, published from 2012 to 2025. Dr. Chatta has worked on 8 clinical trials.
Who does Dr. Gurkamal Singh Chatta publish with?
Dr. Chatta's most frequent co-authors are Khurshid Ahad Guru, MD (6 shared papers), Igor Puzanov, MD (6 shared papers) and Dharmesh Gopalakrishnan, MD (5 shared papers).
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