Dr. Amanda N. Sullivan, DO
- Medicare services, 2024
- 239
- Medicare patients, 2024
- 173
- Part D claims, 2024
- 144
- Hospital affiliations
- 1
- Industry payments
- $3,639
- Practice address
- 1001 Southpark Dr, Littleton, CO 80120
- Practice phone
- Call (720) 772-5550
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Arapahoe Endoscopy Center
Surgery Center - Medicare-Certified · Littleton, Colorado
Find Dr. Sullivan's professional email, personal email and mobile number
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Dr. Amanda N. Sullivan is a gastroenterologist in Littleton, Colorado
Dr. Sullivan practices at Arapahoe Endoscopy Center in Littleton, Colorado.
Dr. Sullivan's NPI, 1124557863, was assigned on June 7, 2017. Dr. Sullivan graduated from University of Pikeville, Kentucky College of Osteopathic Med in 2017. Dr. Sullivan holds Colorado license DR.0063937.
- NPI
- 1124557863NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1759792849
- NPI enumeration date
- June 7, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (720) 772-5550
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- 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. Amanda N. Sullivan practices at Arapahoe Endoscopy Center in Littleton, Colorado
Dr. Sullivan's primary practice is Arapahoe Endoscopy Center, at 1001 Southpark Dr, Littleton, CO 80120. The practice phone is (720) 772-5550.
- Arapahoe Endoscopy Center1001 Southpark Dr, Littleton, CO 80120Phone(720) 772-5550
Source: Dmand AI Affiliation Data
Dr. Amanda N. Sullivan is affiliated with 2 sites of care and 1 medical group
Dr. Sullivan's primary practice is Arapahoe Endoscopy Center in Littleton, Colorado. Dr. Sullivan is also affiliated with AdventHealth Littleton. The medical group on file is Rocky Mountain Gastroenterology.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Amanda N. Sullivan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sullivan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Arapahoe Endoscopy Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Amanda N. Sullivan is one of 282 gastroenterologists in Colorado
Gastroenterology is Dr. Sullivan's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Sullivan is licensed in Colorado.
Specialties and state licenses
- Gastroenterology, ColoradoPrimary
Gastroenterologists near Dr. Sullivan
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. Amanda N. Sullivan billed Medicare for 239 services in 2024
CMS data shows 239 Medicare services from Dr. Sullivan across 11 procedure codes in 2024, for 173 Medicare patients. Medicare paid $27,895 for them.
Dr. Sullivan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 112024: 105855%
- Surgery
- 2023: 02024: 100
- Other services
- 2023: 02024: 34
Where Dr. Sullivan's Medicare services took place, 2024
- In an office4820%
- In a facility19180%
Dr. Sullivan compared with the Colorado median for gastroenterologists, 2024
- Dr. Sullivan
- Colorado median
- Medicare services
- 239vs 36835% below
- Medicare patients
- 173vs 25632% below
- Part D claims
- 85vs 32174% below
Medians across 280 gastroenterologists in Colorado with Dmand AI profiles that report each measure.
Dr. Sullivan'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. Amanda N. Sullivan treated 173 Medicare patients in 2024, average age 72
CMS counts 173 Medicare patients who saw Dr. Sullivan in 2024. The largest group is 65 to 74, with 111 patients. 75% of them have high cholesterol, and 63% have high blood pressure. 6% are also on Medicaid. Their average risk score is 1.23, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Sullivan's median patient age at 57, with 64% women.
Dr. Sullivan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Sullivan's Medicare patients by sex, 2024
- Women10158%
- Men7242%
Chronic conditions among Dr. Sullivan's Medicare patients, 2024
- High cholesterol75%
- High blood pressure63%
- Arthritis46%
- Mood disorders25%
- Anxiety23%
- Depression23%
- Chronic kidney disease21%
- Ischemic heart disease21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sullivan'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
- Women64%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Amanda N. Sullivan wrote 144 Medicare Part D claims in 2024
In 2024, Dr. Sullivan wrote 144 Medicare Part D claims for 73 patients. 86% of them were for generic drugs. CMS names the drug for 85 of them, across 3 drugs with 11 or more claims each, at $1,235 in total drug cost. In 2023, CMS named 55 claims across 2 drugs.
Dr. Sullivan's Part D claims by kind of drug, 2024
- Generic124 claims86%
- Brand-name20 claims14%
Dr. Sullivan'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: 552024: 8555%
Drugs named by CMS: 3 in 2024, 2 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. Amanda N. Sullivan ranks in the 74th percentile for colonoscopy in Medicare
Dr. Sullivan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 79 procedures of colonoscopy by Dr. Sullivan, more than 74% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Sullivan ranks in Medicare procedure volume
- Colonoscopy
- 74th percentile79 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 69th percentile68 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. Amanda N. Sullivan received $3,639 in industry payments from 2021 to 2025
CMS Open Payments shows 164 general payments to Dr. Sullivan from 29 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $919.
General payments to Dr. Sullivan by program year, 2021 to 2025
Companies that paid Dr. Sullivan the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Amanda N. Sullivan graduated from University of Pikeville, Kentucky College of Osteopathic Med
Dr. Sullivan graduated from University of Pikeville, Kentucky College of Osteopathic Med in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Amanda N. Sullivan'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. Amanda N. Sullivan
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. Amanda N. Sullivan's NPI number?
Dr. Amanda N. Sullivan's NPI number is 1124557863. It was assigned on June 7, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Amanda N. Sullivan?
Dr. Amanda N. Sullivan is a gastroenterologist in Littleton, Colorado. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Amanda N. Sullivan practice?
Dr. Sullivan practices at 1001 Southpark Dr, Littleton, CO 80120. Dr. Sullivan's primary practice is Arapahoe Endoscopy Center in Littleton, Colorado.
What is Dr. Amanda N. Sullivan's office phone number?
The practice phone on file for Dr. Sullivan is (720) 772-5550.
What is Dr. Amanda N. Sullivan's medical license number?
Dr. Sullivan holds Colorado license DR.0063937.
Which hospitals is Dr. Amanda N. Sullivan affiliated with?
Dr. Sullivan is affiliated with AdventHealth Littleton.
What medical group is Dr. Amanda N. Sullivan part of?
Dr. Sullivan is linked to Rocky Mountain Gastroenterology.
Does Dr. Amanda N. Sullivan accept Medicare?
Yes. CMS data shows Dr. Sullivan billed Medicare for 239 services in 2024, and Dr. Sullivan accepts Medicare assignment.
How many Medicare patients does Dr. Amanda N. Sullivan see?
CMS counts 173 Medicare patients who saw Dr. Sullivan in 2024, with an average age of 72.
What services does Dr. Amanda N. Sullivan bill to Medicare?
In 2024, Dr. Sullivan's most billed Medicare services were surgery: digestive system (45385), hospital inpatient care (99232) and hospital inpatient care (99222).
Show 4 more questionsShow fewer questions
Where did Dr. Amanda N. Sullivan go to medical school?
Dr. Sullivan graduated from University of Pikeville, Kentucky College of Osteopathic Med in 2017.
What drugs does Dr. Amanda N. Sullivan prescribe most?
In 2024 Medicare Part D data, Dr. Sullivan's most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Gavilyte-G.
Has Dr. Amanda N. Sullivan received payments from drug or device companies?
CMS Open Payments shows $3,639 in general payments to Dr. Sullivan from 29 companies from 2021 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Amanda N. Sullivan been practicing?
Dr. Sullivan graduated from medical school in 2017, 9 years ago.
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