Dr. Hemnishil Kumar Marella, DO
- Medicare services, 2024
- 116
- Medicare patients, 2024
- 99
- Part D claims, 2024
- 81
- Publications
- 20
- Hospital affiliations
- 2
- Practice address
- 5565 W Las Positas Blvd, Pleasanton, CA 94588
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Stanford Care Digestive Health Center of Pleasanton - HOPD
Acute Care Hospital outpatient department · Pleasanton, California
Find Dr. Marella's professional email, personal email and mobile number
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Dr. Hemnishil Kumar Marella is a gastroenterologist in Pleasanton, California
Dr. Marella practices at Stanford Care Digestive Health Center of Pleasanton - HOPD in Pleasanton, California.
Dr. Marella's NPI, 1760915771, was assigned on April 6, 2017. Dr. Marella graduated from Lincoln Memorial University-DeBusk College of Osteopathic Medicine in 2017. Dr. Marella holds California license 20A22252.
- NPI
- 1760915771NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5294118998
- NPI enumeration date
- April 6, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Hemnishil Kumar Marella practices at Stanford Care Digestive Health Center of Pleasanton - HOPD in Pleasanton, California
Dr. Marella's primary practice is Stanford Care Digestive Health Center of Pleasanton - HOPD, at 5565 W Las Positas Blvd, Pleasanton, CA 94588.
- Stanford Care Digestive Health Center of Pleasanton - HOPD5565 W Las Positas Blvd, Pleasanton, CA 94588
Source: Dmand AI Affiliation Data
Dr. Hemnishil Kumar Marella is affiliated with 5 sites of care and 3 medical groups
Dr. Marella's primary practice is Stanford Care Digestive Health Center of Pleasanton - HOPD in Pleasanton, California. Dr. Marella is also affiliated with Stanford Health Care Tri-Valley. The medical group on file is Stanford Health Care. Dmand AI also links Dr. Marella to 1 more hospital, 2 group practices and clinics and 2 medical groups, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Hemnishil Kumar Marella's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marella practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stanford Care Digestive Health Center of Pleasanton - HOPD | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Hemnishil Kumar Marella is one of 1,977 gastroenterologists in California
Gastroenterology is Dr. Marella's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Marella is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Marella's licenses on file in 2 states: California and Tennessee.
Specialties and state licenses
- Gastroenterology, CaliforniaPrimary
- Tennessee license
Clinical focus
Dmand AI lists circulation problems, gastrointestinal bleeding, sepsis and urinary tract infection among the conditions Dr. Marella treats.
Gastroenterologists near Dr. Marella
Counts of gastroenterologists 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. Hemnishil Kumar Marella billed Medicare for 116 services in 2024
CMS data shows 116 Medicare services from Dr. Marella across 5 procedure codes in 2024, for 99 Medicare patients. Medicare paid $14,300 for them.
Dr. Marella's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1312024: 9924%
- Surgery
- 2023: 02024: 17
Where Dr. Marella's Medicare services took place, 2024
- In an office9985%
- In a facility1715%
Dr. Marella compared with the California median for gastroenterologists, 2024
- Dr. Marella
- California median
- Medicare services
- 116vs 58680% below
- Medicare patients
- 99vs 30267% below
- Part D claims
- 51vs 38087% below
Medians across 1,875 gastroenterologists in California with Dmand AI profiles that report each measure.
Dr. Marella'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. Marella and other gastroenterologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Hemnishil Kumar Marella treated 99 Medicare patients in 2024, average age 72
CMS counts 99 Medicare patients who saw Dr. Marella in 2024. The largest group is 65 to 74, with 42 patients. 75% of them have high cholesterol, and 71% have high blood pressure. 30% are also on Medicaid. Their average risk score is 1.16, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Marella's median patient age at 57, with 53% women.
Dr. Marella's Medicare patients by age, 2024
Dr. Marella's Medicare patients by sex, 2024
- Women6061%
- Men3939%
Chronic conditions among Dr. Marella's Medicare patients, 2024
- High cholesterol75%
- High blood pressure71%
- Arthritis41%
- Osteoporosis30%
- Diabetes28%
- Anxiety24%
- Mood disorders23%
- Depression22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Marella's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women53%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Hemnishil Kumar Marella wrote 81 Medicare Part D claims in 2024
In 2024, Dr. Marella wrote 81 Medicare Part D claims for 67 patients. 84% of them were for generic drugs. CMS names the drug for 51 of them, across 2 drugs with 11 or more claims each, at $2,632 in total drug cost. In 2022, CMS named 13 claims across 1 drug.
Dr. Marella's Part D claims by kind of drug, 2024
- Generic68 claims84%
- Brand-name13 claims16%
Dr. Marella'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, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 132024: 51292%
Drugs named by CMS: 2 in 2024, 1 in 2022.
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. Hemnishil Kumar Marella ranks in the 90th percentile for colonoscopy in Medicare
Dr. Marella accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Marella as offering telehealth. CMS counts 164 procedures of colonoscopy by Dr. Marella, more than 90% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Marella ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 88th percentile178 procedures
- Colonoscopy
- 90th percentile164 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Hemnishil Kumar Marella has 20 publications on record
Dmand AI links 20 papers to Dr. Marella, published from 2019 to 2021. 2020 was the busiest year, with 9. The most frequent topics are Alanine Transaminase, Biopsy and Black or African American. Dr. Marella has published most often in Clin Exp Hepatol. Dr. Marella's most frequent co-authors are Claudio R. Tombazzi, MD, Benedict Joseph Maliakkal, MD and Satheesh Padmanabhan Nair, MD.
Dr. Marella's papers by year, 2019 to 2021
Topics Dr. Marella writes about most
- Alanine Transaminase
- Biopsy
- Black or African American
- Liver
- Liver Cirrhosis
- Non-alcoholic Fatty Liver Disease
- White People
Dr. Marella's most frequent co-authors
- Claudio R. Tombazzi, MD6 shared papers
- Benedict Joseph Maliakkal, MD5 shared papers
- Satheesh Padmanabhan Nair, MD5 shared papers
Recent publications by Dr. Marella
See who Dr. Marella researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Marella works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Hemnishil Kumar Marella received $1,011 in industry payments from 2021 to 2024
CMS Open Payments shows 10 general payments to Dr. Marella from 4 drug and device companies from 2021 to 2024. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $570.
General payments to Dr. Marella by program year, 2021 to 2024
Companies that paid Dr. Marella the most, 2021 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Hemnishil Kumar Marella graduated from Lincoln Memorial University-DeBusk College of Osteopathic Medicine
Dr. Marella graduated from Lincoln Memorial University-DeBusk College of Osteopathic Medicine in 2017.
- Medical school
- Board certified in gastroenterology
- Board certified in internal medicine
- Board certified in 2023 - 2025
- Board certified in 2021 - 2026
Source: Dmand AI Professional Profile Data
Dr. Hemnishil Kumar Marella accepts plans from 6 insurance carriers
Dr. Marella is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- AR State Medicaid
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
Plan types Dr. Marella accepts, by number of carriers
- HMO3
- POS3
- EPO2
- Medicare2
- PPO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Hemnishil Kumar Marella'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation 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)Doctors and Clinicians Utilization Data (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 |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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. Hemnishil Kumar Marella
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. Hemnishil Kumar Marella's NPI number?
Dr. Hemnishil Kumar Marella's NPI number is 1760915771. It was assigned on April 6, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Hemnishil Kumar Marella?
Dr. Hemnishil Kumar Marella is a gastroenterologist in Pleasanton, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Hemnishil Kumar Marella practice?
Dr. Marella practices at 5565 W Las Positas Blvd, Pleasanton, CA 94588. Dr. Marella's primary practice is Stanford Care Digestive Health Center of Pleasanton - HOPD in Pleasanton, California. Dmand AI also links Dr. Marella to 1 hospital, 2 group practices and clinics and 2 medical groups.
What is Dr. Hemnishil Kumar Marella's medical license number?
Dr. Marella holds California license 20A22252, one of the licenses on file in 2 states.
Which states has Dr. Hemnishil Kumar Marella been licensed in?
Dmand AI has state licenses on file for Dr. Marella in California and Tennessee.
Which hospitals is Dr. Hemnishil Kumar Marella affiliated with?
Dr. Marella is affiliated with Stanford Health Care Tri-Valley. Dmand AI links Dr. Marella to 1 more hospital.
What medical group is Dr. Hemnishil Kumar Marella part of?
Dr. Marella is linked to Stanford Health Care. Dmand AI links Dr. Marella to 2 more medical groups.
Does Dr. Hemnishil Kumar Marella accept Medicare?
Yes. CMS data shows Dr. Marella billed Medicare for 116 services in 2024, and Dr. Marella accepts Medicare assignment.
Does Dr. Hemnishil Kumar Marella offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Marella as offering telehealth services.
How many Medicare patients does Dr. Hemnishil Kumar Marella see?
CMS counts 99 Medicare patients who saw Dr. Marella in 2024, with an average age of 72.
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Is Dr. Hemnishil Kumar Marella board certified?
Yes. Dr. Marella is board certified in gastroenterology by the American Board of Internal Medicine.
What services does Dr. Hemnishil Kumar Marella bill to Medicare?
In 2024, Dr. Marella's most billed Medicare services were office visit, new patient (99204), office visit, established patient (99214) and surgery: digestive system (43239).
Where did Dr. Hemnishil Kumar Marella go to medical school?
Dr. Marella graduated from Lincoln Memorial University-DeBusk College of Osteopathic Medicine in 2017.
What drugs does Dr. Hemnishil Kumar Marella prescribe most?
In 2024 Medicare Part D data, Dr. Marella's most prescribed drugs by claims were Sod Sulf-Potass Sulf-Mag Sulf and Pantoprazole Sodium.
Has Dr. Hemnishil Kumar Marella received payments from drug or device companies?
CMS Open Payments shows $1,011 in general payments to Dr. Marella from 4 companies from 2021 to 2024. The largest total came from Abbvie Inc.
How long has Dr. Hemnishil Kumar Marella been practicing?
Dr. Marella graduated from medical school in 2017, 9 years ago.
Does Dr. Hemnishil Kumar Marella do research?
Dmand AI links 20 publications to Dr. Marella, published from 2019 to 2021.
Who does Dr. Hemnishil Kumar Marella publish with?
Dr. Marella's most frequent co-authors are Claudio R. Tombazzi, MD (6 shared papers), Benedict Joseph Maliakkal, MD (5 shared papers) and Satheesh Padmanabhan Nair, MD (5 shared papers).
What insurance does Dr. Hemnishil Kumar Marella accept?
Dr. Marella is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
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