Dr. David Andrew Tendler, MD
- Medicare services, 2024
- 749
- Medicare patients, 2024
- 368
- Part D claims, 2024
- 1,139
- Hospital affiliations
- 2
- Industry payments
- $4,381
- Practice address
- 3643 N Roxboro Street, Durham, NC 27704
- Practice phone
- Call (919) 470-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Tendler'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. David Andrew Tendler is a gastroenterologist in Durham, North Carolina
Dr. Tendler practices at Duke Regional Hospital in Durham, North Carolina, part of Duke University.
Dr. Tendler's NPI, 1811957731, was assigned on March 24, 2006. Dr. Tendler graduated from Yale University School of Medicine in 1993. Dr. Tendler holds North Carolina license 9901051.
- NPI
- 1811957731NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567423692
- NPI enumeration date
- March 24, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (919) 470-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Andrew Tendler practices at Duke Regional Hospital in Durham, North Carolina
Dr. Tendler's primary practice is Duke Regional Hospital, at 3643 N Roxboro Street, Durham, NC 27704 in Durham County. The practice phone is (919) 470-4000.
- Duke Regional Hospital3643 N Roxboro Street, Durham, NC 27704 · Durham CountyPhone(919) 470-4000
Source: Dmand AI Affiliation Data
Dr. David Andrew Tendler is affiliated with 4 sites of care and 2 medical groups
Dr. Tendler's primary practice is Duke Regional Hospital in Durham, North Carolina, part of Duke University. Dr. Tendler is also affiliated with Duke University Hospital. The medical group on file is Duke Health Integrated Practice. Dmand AI also links Dr. Tendler to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David Andrew Tendler's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tendler practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Duke Regional Hospital | 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. David Andrew Tendler is one of 590 gastroenterologists in North Carolina
Gastroenterology is Dr. Tendler's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Tendler is licensed in North Carolina.
Specialties and state licenses
- Gastroenterology, North CarolinaPrimary
Gastroenterologists near Dr. Tendler
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. David Andrew Tendler billed Medicare for 749 services in 2024
CMS data shows 749 Medicare services from Dr. Tendler across 12 procedure codes in 2024, for 368 Medicare patients. Medicare paid $59,830 for them.
Dr. Tendler's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2452024: 2637%
- Other services
- 2023: 1642024: 22034%
- Office and hospital visits
- 2023: 1542024: 17514%
- Tests and treatments
- 2023: 202024: 91355%
Where Dr. Tendler's Medicare services took place, 2024
- In an office23031%
- In a facility51969%
Dr. Tendler compared with the North Carolina median for gastroenterologists, 2024
- Dr. Tendler
- North Carolina median
- Medicare services
- 749vs 43871% above
- Medicare patients
- 368vs 26837% above
- Part D claims
- 932vs 4022.3 times
Medians across 567 gastroenterologists in North Carolina with Dmand AI profiles that report each measure.
Dr. Tendler'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. Tendler and other gastroenterologists in North Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Andrew Tendler treated 368 Medicare patients in 2024, average age 73
CMS counts 368 Medicare patients who saw Dr. Tendler in 2024. The largest group is 65 to 74, with 212 patients. 74% of them have high cholesterol, and 63% have high blood pressure. Their average risk score is 0.92, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Tendler's median patient age at 71, with 61% women.
Dr. Tendler's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Tendler's Medicare patients by sex, 2024
- Women21759%
- Men15141%
Chronic conditions among Dr. Tendler's Medicare patients, 2024
- High cholesterol74%
- High blood pressure63%
- Arthritis46%
- Mood disorders19%
- Anxiety18%
- Diabetes18%
- Ischemic heart disease17%
- Osteoporosis17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tendler's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Andrew Tendler wrote 1,139 Medicare Part D claims in 2024
In 2024, Dr. Tendler wrote 1,139 Medicare Part D claims for 329 patients. 77% of them were for generic drugs. CMS names the drug for 932 of them, across 28 drugs with 11 or more claims each, at $309,919 in total drug cost. In 2023, CMS named 798 claims across 24 drugs.
Dr. Tendler's Part D claims by kind of drug, 2024
- Generic880 claims77%
- Brand-name259 claims23%
Dr. Tendler'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. Tendler's Part D claims, 2024
- Antibiotics4%49 of 1,139 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: 7982024: 93217%
Drugs named by CMS: 28 in 2024, 24 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. David Andrew Tendler ranks in the 67th percentile for colonoscopy in Medicare
Dr. Tendler accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Tendler as offering telehealth. CMS counts 60 procedures of colonoscopy by Dr. Tendler, more than 67% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Tendler ranks in Medicare procedure volume
- Colonoscopy
- 67th percentile60 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 58th percentile35 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. David Andrew Tendler received $4,381 in industry payments from 2016 to 2025
CMS Open Payments shows 260 general payments to Dr. Tendler from 24 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Abbvie Inc. paid the most, $1,479.
General payments to Dr. Tendler by program year, 2016 to 2025
General payments to Dr. Tendler by kind, 2016 to 2025
- Food and beverage$4,28598%
- Education$852%
- Consulting fees$120%
Companies that paid Dr. Tendler the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Andrew Tendler graduated from Yale University School of Medicine
Dr. Tendler graduated from Yale University School of Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David Andrew Tendler'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) |
| 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. David Andrew Tendler
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. David Andrew Tendler's NPI number?
Dr. David Andrew Tendler's NPI number is 1811957731. It was assigned on March 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David Andrew Tendler?
Dr. David Andrew Tendler is a gastroenterologist in Durham, North Carolina. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. David Andrew Tendler practice?
Dr. Tendler practices at 3643 N Roxboro Street, Durham, NC 27704. Dr. Tendler's primary practice is Duke Regional Hospital in Durham, North Carolina, part of Duke University. Dmand AI also links Dr. Tendler to 2 group practices and clinics and 1 medical group.
What is Dr. David Andrew Tendler's office phone number?
The practice phone on file for Dr. Tendler is (919) 470-4000.
What is Dr. David Andrew Tendler's medical license number?
Dr. Tendler holds North Carolina license 9901051.
Which hospitals is Dr. David Andrew Tendler affiliated with?
Dr. Tendler practices at Duke Regional Hospital in Durham, North Carolina. Dr. Tendler is also affiliated with Duke University Hospital.
What medical group is Dr. David Andrew Tendler part of?
Dr. Tendler is linked to Duke Health Integrated Practice. Dmand AI links Dr. Tendler to 1 more medical group.
Does Dr. David Andrew Tendler accept Medicare?
Yes. CMS data shows Dr. Tendler billed Medicare for 749 services in 2024, and Dr. Tendler accepts Medicare assignment.
Does Dr. David Andrew Tendler offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Tendler as offering telehealth services.
How many Medicare patients does Dr. David Andrew Tendler see?
CMS counts 368 Medicare patients who saw Dr. Tendler in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. David Andrew Tendler bill to Medicare?
In 2024, Dr. Tendler's most billed Medicare services were surgery: digestive system (45385), medicare service (G0500) and office visit, established patient (99214).
Where did Dr. David Andrew Tendler go to medical school?
Dr. Tendler graduated from Yale University School of Medicine in 1993.
What drugs does Dr. David Andrew Tendler prescribe most?
In 2024 Medicare Part D data, Dr. Tendler's most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Gavilyte-G.
Has Dr. David Andrew Tendler received payments from drug or device companies?
CMS Open Payments shows $4,381 in general payments to Dr. Tendler from 24 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. David Andrew Tendler been practicing?
Dr. Tendler graduated from medical school in 1993, 33 years ago.
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