Breast FeedingDietary SupplementsInfant Formula
Dr. Navin Lingam Kumar, MD
NPI1700106697PAC ID3173763398
- Medicare services, 2024
- 615
- Medicare patients, 2024
- 406
- Part D claims, 2024
- 304
- Publications
- 10
- Hospital affiliations
- 4
- Practice address
- 75 Francis Street, Boston, MA 02115
- Practice phone
- Call (617) 732-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Kumar's professional email, personal email and mobile number
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Dr. Navin Lingam Kumar is a gastroenterologist in Boston, Massachusetts
Dr. Kumar practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Kumar's NPI, 1700106697, was assigned on June 2, 2010. Dr. Kumar graduated from Harvard Medical School in 2010. Dr. Kumar holds Massachusetts license 253276.
NPI and contact details
- NPI
- 1700106697NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173763398
- NPI enumeration date
- June 2, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 732-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Navin Lingam Kumar practices at Brigham and Women's Hospital in Boston, Massachusetts
Dr. Kumar's primary practice is Brigham and Women's Hospital, at 75 Francis Street, Boston, MA 02115 in Suffolk County. The practice phone is (617) 732-5500.
- Brigham and Women's Hospital75 Francis Street, Boston, MA 02115 · Suffolk CountyPhone(617) 732-5500
Source: Dmand AI Affiliation Data
Dr. Navin Lingam Kumar is affiliated with 5 sites of care and 1 medical group
Dr. Kumar's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Kumar is also affiliated with Dana-Farber Cancer Institute. The medical group on file is Brigham and Women's Hospital. Dmand AI also links Dr. Kumar to 2 more hospitals and 1 hospital outpatient department, each named with a free account.
Dana-Farber Cancer InstituteBrigham and Women's Hospital2 hospitalsNames with a free account1 hospital outpatient departmentName with a free account
See all 6 affiliations for Dr. KumarSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Navin Lingam Kumar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kumar practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Brigham and Women's Hospital | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Navin Lingam Kumar is one of 597 gastroenterologists in Massachusetts
Gastroenterology is Dr. Kumar's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Kumar is licensed in Massachusetts.
Specialties and state licenses
- Gastroenterology, MassachusettsPrimary
Gastroenterologists near Dr. Kumar
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
597gastroenterologists in Massachusetts220gastroenterologists in Boston48gastroenterologists at Brigham and Women's Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Navin Lingam Kumar billed Medicare for 615 services in 2024
CMS data shows 615 Medicare services from Dr. Kumar across 9 procedure codes in 2024, for 406 Medicare patients. Medicare paid $60,860 for them.
Medicare services, 2024615
Medicare patients406
Paid by Medicare$60,860
Procedure codes9
Dr. Kumar's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3052024: 3102%
- Surgery
- 2023: 2112024: 23612%
- Other services
- 2023: 942024: 6927%
Where Dr. Kumar's Medicare services took place, 2024
- In an office50282%
- In a facility11318%
Dr. Kumar compared with the Massachusetts median for gastroenterologists, 2024
- Dr. Kumar
- Massachusetts median
- Medicare services
- 615vs 51918% above
- Medicare patients
- 406vs 34318% above
- Part D claims
- 191vs 30036% below
Medians across 583 gastroenterologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Kumar'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Navin Lingam Kumar treated 406 Medicare patients in 2024, average age 72
CMS counts 406 Medicare patients who saw Dr. Kumar in 2024. The largest group is 65 to 74, with 177 patients. 73% of them have high blood pressure, and 73% have high cholesterol. 17% are also on Medicaid. Their average risk score is 1.52, 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. Kumar's median patient age at 66, with 65% women.
Medicare patients, 2024406
Average age72
Average risk score1.52
Also on Medicaid17%
Dr. Kumar's Medicare patients by age, 2024
Dr. Kumar's Medicare patients by sex, 2024
- Women26966%
- Men13734%
Chronic conditions among Dr. Kumar's Medicare patients, 2024
- High blood pressure73%
- High cholesterol73%
- Arthritis55%
- Anxiety33%
- Mood disorders30%
- Osteoporosis29%
- Depression28%
- Chronic kidney disease27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kumar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women65%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Navin Lingam Kumar wrote 304 Medicare Part D claims in 2024
In 2024, Dr. Kumar wrote 304 Medicare Part D claims for 152 patients. 87% of them were for generic drugs. CMS names the drug for 191 of them, across 5 drugs with 11 or more claims each, at $4,683 in total drug cost. In 2023, CMS named 267 claims across 8 drugs.
Part D claims, 2024304
Drugs named by CMS5
Total drug cost$4,683
Part D patients152
Dr. Kumar's Part D claims by kind of drug, 2024
- Generic263 claims87%
- Brand-name41 claims13%
Dr. Kumar'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. Kumar's Part D claims, 2024
- Antibiotics7%20 of 304 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: 2672024: 19128%
Drugs named by CMS: 5 in 2024, 8 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. Navin Lingam Kumar ranks in the 68th percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
Dr. Kumar accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Kumar as offering telehealth. CMS counts 64 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Kumar, more than 68% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Kumar ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 68th percentile64 procedures
- Colonoscopy
- 54th percentile31 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. Navin Lingam Kumar has 10 publications on record
Dmand AI links 10 papers to Dr. Kumar, published from 2015 to 2024. 2017 was the busiest year, with 2. The most frequent topics are Infant, Premature, Chorioamnionitis and Fetal Membranes, Premature Rupture. Dr. Kumar has published most often in Pediatr Res. Dr. Kumar's most frequent co-authors are Ranjan Monga, MD, Gangaram Ganpatrao Akangire, MD and Mohammed Daoud Al-Nahar.
Papers10
Years published2015 to 2024
Dr. Kumar's papers by year, 2015 to 2024
Topics Dr. Kumar writes about most
- Infant, Premature
- Chorioamnionitis
- Fetal Membranes, Premature Rupture
- Gestational Age
- Infant, Newborn, Diseases
- Milk, Human
- Oximetry
- Respiratory Rate
Dr. Kumar's most frequent co-authors
- Ranjan Monga, MD2 shared papers
- Gangaram Ganpatrao Akangire, MD1 shared paper
- Mohammed Daoud Al-Nahar1 shared paper
Recent publications by Dr. Kumar
Acute Lung InjuryC-Reactive ProteinInfant, Premature
Big DataBirth WeightBlood Pressure
HypoxiaInfant, PrematureLength of Stay
See who Dr. Kumar researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kumar 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. Navin Lingam Kumar received $131 in industry payments in 2020
CMS Open Payments shows 2 general payments to Dr. Kumar from 2 drug and device companies in 2020. Food and beverage make up the largest share, 100% of the total. Endogastric Solutions, Inc paid the most, $115.
Companies that paid Dr. Kumar the most, 2020 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Navin Lingam Kumar graduated from Harvard Medical School
Dr. Kumar graduated from Harvard Medical School in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Navin Lingam Kumar'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 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)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 |
| 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. Navin Lingam Kumar
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. Navin Lingam Kumar's NPI number?
Dr. Navin Lingam Kumar's NPI number is 1700106697. It was assigned on June 2, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Navin Lingam Kumar?
Dr. Navin Lingam Kumar is a gastroenterologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Navin Lingam Kumar practice?
Dr. Kumar practices at 75 Francis Street, Boston, MA 02115. Dr. Kumar's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Kumar to 2 hospitals and 1 hospital outpatient department.
What is Dr. Navin Lingam Kumar's office phone number?
The practice phone on file for Dr. Kumar is (617) 732-5500.
What is Dr. Navin Lingam Kumar's medical license number?
Dr. Kumar holds Massachusetts license 253276.
Which hospitals is Dr. Navin Lingam Kumar affiliated with?
Dr. Kumar practices at Brigham and Women's Hospital in Boston, Massachusetts. Dr. Kumar is also affiliated with Dana-Farber Cancer Institute. Dmand AI links Dr. Kumar to 2 more hospitals.
What medical group is Dr. Navin Lingam Kumar part of?
Dr. Kumar is linked to Brigham and Women's Hospital.
Does Dr. Navin Lingam Kumar accept Medicare?
Yes. CMS data shows Dr. Kumar billed Medicare for 615 services in 2024, and Dr. Kumar accepts Medicare assignment.
Does Dr. Navin Lingam Kumar offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Kumar as offering telehealth services.
How many Medicare patients does Dr. Navin Lingam Kumar see?
CMS counts 406 Medicare patients who saw Dr. Kumar in 2024, with an average age of 72.
Show 7 more questionsShow fewer questions
What services does Dr. Navin Lingam Kumar bill to Medicare?
In 2024, Dr. Kumar's most billed Medicare services were office visit, established patient (99214), surgery: digestive system (45380) and surgery: digestive system (45385).
Where did Dr. Navin Lingam Kumar go to medical school?
Dr. Kumar graduated from Harvard Medical School in 2010.
What drugs does Dr. Navin Lingam Kumar prescribe most?
In 2024 Medicare Part D data, Dr. Kumar's most prescribed drugs by claims were Omeprazole, Gavilyte-G and Famotidine.
Has Dr. Navin Lingam Kumar received payments from drug or device companies?
CMS Open Payments shows $131 in general payments to Dr. Kumar from 2 companies from 2020 to 2020. The largest total came from Endogastric Solutions, Inc.
How long has Dr. Navin Lingam Kumar been practicing?
Dr. Kumar graduated from medical school in 2010, 16 years ago.
Does Dr. Navin Lingam Kumar do research?
Dmand AI links 10 publications to Dr. Kumar, published from 2015 to 2024.
Who does Dr. Navin Lingam Kumar publish with?
Dr. Kumar's most frequent co-authors are Ranjan Monga, MD (2 shared papers), Gangaram Ganpatrao Akangire, MD (1 shared paper) and Mohammed Daoud Al-Nahar (1 shared paper).
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