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Ioannis Anastasiou
NPI1104201532
- Medicare services, 2023
- 613
- Part D claims, 2024
- 20
- Publications
- 1
- Hospital affiliations
- 1
- Industry payments
- $1,240
- Practice address
- 4301 West Markham Street Mail Slot 612, Little Rock, AR 72205
- Practice phone
- Call (501) 686-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Ioannis Anastasiou'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.
Ioannis Anastasiou is a gastroenterologist in Pittsburgh, Pennsylvania
Ioannis Anastasiou practices at UAMS Medical Center in Little Rock, Arkansas, part of University of Arkansas for Medical Sciences.
Ioannis Anastasiou's NPI, 1104201532, was assigned on July 28, 2015. Ioannis Anastasiou holds Arkansas license E-12514.
NPI and contact details
- NPI
- 1104201532NPI Registry (opens in a new tab)
- NPI enumeration date
- July 28, 2015
- NPI status
- Active
- Practice phone
- (501) 686-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Ioannis Anastasiou practices in Little Rock and Pittsburgh
Ioannis Anastasiou's primary practice is UAMS Medical Center, at 4301 West Markham Street Mail Slot 612, Little Rock, AR 72205 in Pulaski County. The practice phone is (501) 686-5000. The NPI Registry lists Ioannis Anastasiou's practice address as 200 Lothrop St, Pittsburgh, PA 15213.
- UAMS Medical CenterPrimary4301 West Markham Street Mail Slot 612, Little Rock, AR 72205 · Pulaski CountyPhone(501) 686-5000
- NPI Registry address200 Lothrop St, Pittsburgh, PA 15213 · Allegheny CountyPhone(501) 686-8000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Ioannis Anastasiou is affiliated with 1 site of care and 2 medical groups
Ioannis Anastasiou's primary practice is UAMS Medical Center in Little Rock, Arkansas, part of University of Arkansas for Medical Sciences. The medical group on file is UAMS - University of Arkansas for Medical Sciences. Dmand AI also links Ioannis Anastasiou to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Ioannis Anastasiou's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Ioannis Anastasiou practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UAMS Medical Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Ioannis Anastasiou is one of 899 gastroenterologists in Pennsylvania
Gastroenterology is Ioannis Anastasiou's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Ioannis Anastasiou is licensed in Arkansas.
Specialties and state licenses
- Gastroenterology, ArkansasPrimary
Gastroenterologists near Ioannis Anastasiou
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
899gastroenterologists in Pennsylvania91gastroenterologists in Pittsburgh11gastroenterologists at UAMS Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Ioannis Anastasiou billed Medicare for 613 services in 2023
CMS data shows 613 Medicare services from Ioannis Anastasiou across 18 procedure codes in 2023. Medicare paid $42,916 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2023613
Paid by Medicare$42,916
Procedure codes18
Ioannis Anastasiou's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Surgery
- 2022: 122023: 4143350%
- Office and hospital visits
- 2022: 02023: 122
- Other services
- 2022: 152023: 65333%
- Imaging
- 2022: 02023: 12
Ioannis Anastasiou compared with the Pennsylvania median for gastroenterologists, 2023
- Ioannis Anastasiou
- Pennsylvania median
- Medicare services
- 613vs 40153% above
- Part D claims
- 16vs 37596% below
Medians across 899 gastroenterologists in Pennsylvania with Dmand AI profiles that report each measure.
Ioannis Anastasiou's most billed Medicare procedure codes, 2023
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 Ioannis Anastasiou and other gastroenterologists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Ioannis Anastasiou's patients have a median age of 68
Across all payers, Dmand AI patient panel data puts Ioannis Anastasiou's median patient age at 68, with 54% women.
Ioannis Anastasiou's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women54%
- Men46%
Source: Dmand AI Patient Panel Data
Ioannis Anastasiou wrote 20 Medicare Part D claims in 2024
In 2024, Ioannis Anastasiou wrote 20 Medicare Part D claims. 95% of them were for generic drugs. CMS names the drug for 16 of them, across 1 drug with 11 or more claims each, at $67 in total drug cost. In 2023, CMS named 89 claims across 4 drugs.
Part D claims, 202420
Drugs named by CMS1
Total drug cost$67
Ioannis Anastasiou's Part D claims by kind of drug, 2024
- Generic19 claims95%
- Brand-name and other1 claims5%
Ioannis Anastasiou'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: 892024: 1682%
Drugs named by CMS: 1 in 2024, 4 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
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Ioannis Anastasiou has 1 publication on record
Dmand AI links 1 paper to Ioannis Anastasiou in 2021. Ioannis Anastasiou's most frequent co-author is Michail Mavros, MD.
Papers1
Ioannis Anastasiou's most frequent co-authors
Recent publications by Ioannis Anastasiou
See who Ioannis Anastasiou researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Ioannis Anastasiou works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Ioannis Anastasiou received $1,240 in industry payments from 2022 to 2023
CMS Open Payments shows 10 general payments to Ioannis Anastasiou from 4 drug and device companies from 2022 to 2023. Travel and lodging make up the largest share, 80% of the total. Olympus Corporation of the Americas paid the most, $1,020.
General payments to Ioannis Anastasiou by program year, 2022 to 2023
General payments to Ioannis Anastasiou by kind, 2022 to 2023
$1.2Kin total
- Travel and lodging$99080%
- Food and beverage$24920%
Companies that paid Ioannis Anastasiou the most, 2022 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Ioannis Anastasiou'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand 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 Data |
| 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) |
| 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) |
| 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 Ioannis Anastasiou
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Ioannis Anastasiou's NPI number?
Ioannis Anastasiou's NPI number is 1104201532. It was assigned on July 28, 2015, and it is active in the NPI Registry.
What does Ioannis Anastasiou specialize in?
Ioannis Anastasiou is a gastroenterologist in Pittsburgh, Pennsylvania. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Ioannis Anastasiou practice?
Ioannis Anastasiou practices at 4301 West Markham Street Mail Slot 612, Little Rock, AR 72205. Ioannis Anastasiou also practices at 200 Lothrop St, Pittsburgh, PA 15213. Ioannis Anastasiou's primary practice is UAMS Medical Center in Little Rock, Arkansas, part of University of Arkansas for Medical Sciences. Dmand AI also links Ioannis Anastasiou to 1 medical group.
What is Ioannis Anastasiou's office phone number?
The practice phone on file for Ioannis Anastasiou is (501) 686-5000.
What is Ioannis Anastasiou's medical license number?
Ioannis Anastasiou holds Arkansas license E-12514.
Which hospitals is Ioannis Anastasiou affiliated with?
Ioannis Anastasiou practices at UAMS Medical Center in Little Rock, Arkansas.
What medical group is Ioannis Anastasiou part of?
Ioannis Anastasiou is linked to UAMS - University of Arkansas for Medical Sciences. Dmand AI links Ioannis Anastasiou to 1 more medical group.
Does Ioannis Anastasiou accept Medicare?
Yes. CMS data shows Ioannis Anastasiou billed Medicare for 613 services in 2023.
What services does Ioannis Anastasiou bill to Medicare?
In 2023, Ioannis Anastasiou's most billed Medicare services were surgery: digestive system (43239), medicare service (G0500) and hospital inpatient care (99221).
What drugs does Ioannis Anastasiou prescribe most?
In 2024 Medicare Part D data, Ioannis Anastasiou's most prescribed drugs by claims were Pantoprazole Sodium.
Show 4 more questionsShow fewer questions
Has Ioannis Anastasiou received payments from drug or device companies?
CMS Open Payments shows $1,240 in general payments to Ioannis Anastasiou from 4 companies from 2022 to 2023. The largest total came from Olympus Corporation of the Americas.
How long has Ioannis Anastasiou been practicing?
Ioannis Anastasiou graduated from medical school in 2004, 22 years ago.
Does Ioannis Anastasiou do research?
Dmand AI links 1 publication to Ioannis Anastasiou.
Who does Ioannis Anastasiou publish with?
Ioannis Anastasiou's most frequent co-authors are Michail Mavros, MD (1 shared paper).
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