Dr. Ryan C. Wanamaker, MD
- Medicare services, 2024
- 732
- Medicare patients, 2024
- 456
- Part D claims, 2024
- 834
- MIPS score, 2024
- 75
- Hospital affiliations
- 5
- Practice address
- 3000 Hospital Boulevard, Roswell, GA 30076
- Practice phone
- Call (770) 751-2500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Wanamaker'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. Ryan C. Wanamaker is a gastroenterologist in Roswell, Georgia
Dr. Wanamaker practices at Wellstar North Fulton Medical Center in Roswell, Georgia, part of Wellstar Health System.
Dr. Wanamaker's NPI, 1326090358, was assigned on May 17, 2006. Dr. Wanamaker graduated from University of North Carolina at Chapel Hill School of Medicine in 2000. Dr. Wanamaker holds Georgia license 057335.
- NPI
- 1326090358NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4688686116
- NPI enumeration date
- May 17, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (770) 751-2500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ryan C. Wanamaker practices at Wellstar North Fulton Medical Center in Roswell, Georgia
Dr. Wanamaker's primary practice is Wellstar North Fulton Medical Center, at 3000 Hospital Boulevard, Roswell, GA 30076 in Fulton County. The practice phone is (770) 751-2500.
- Wellstar North Fulton Medical Center3000 Hospital Boulevard, Roswell, GA 30076 · Fulton CountyPhone(770) 751-2500
Source: Dmand AI Affiliation Data
Dr. Ryan C. Wanamaker is affiliated with 7 sites of care and 2 medical groups
Dr. Wanamaker's primary practice is Wellstar North Fulton Medical Center in Roswell, Georgia, part of Wellstar Health System. Dr. Wanamaker is also affiliated with Memorial Health University Medical Center. The medical group on file is Atlanta Gastroenterology Associates. Dmand AI also links Dr. Wanamaker to 3 more hospitals, 2 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. Ryan C. Wanamaker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wanamaker practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Wellstar North Fulton Medical Center | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ryan C. Wanamaker is one of 503 gastroenterologists in Georgia
Gastroenterology is Dr. Wanamaker's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Wanamaker is licensed in Georgia.
Specialties and state licenses
- Gastroenterology, GeorgiaPrimary
Gastroenterologists near Dr. Wanamaker
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. Ryan C. Wanamaker billed Medicare for 732 services in 2024
CMS data shows 732 Medicare services from Dr. Wanamaker across 14 procedure codes in 2024, for 456 Medicare patients. Medicare paid $86,020 for them.
Dr. Wanamaker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5022024: 42615%
- Surgery
- 2023: 1702024: 21325%
- Tests and treatments
- 2023: 452024: 5931%
- Other services
- 2023: 422024: 3419%
Where Dr. Wanamaker's Medicare services took place, 2024
- In an office33145%
- In a facility40155%
Dr. Wanamaker compared with the Georgia median for gastroenterologists, 2024
- Dr. Wanamaker
- Georgia median
- Medicare services
- 732vs 49448% above
- Medicare patients
- 456vs 29754% above
- Part D claims
- 719vs 50343% above
Medians across 499 gastroenterologists in Georgia with Dmand AI profiles that report each measure.
Dr. Wanamaker'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. Ryan C. Wanamaker treated 456 Medicare patients in 2024, average age 72
CMS counts 456 Medicare patients who saw Dr. Wanamaker in 2024. The largest group is 65 to 74, with 255 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.36, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Wanamaker's median patient age at 66, with 54% women.
Dr. Wanamaker's Medicare patients by age, 2024
Dr. Wanamaker's Medicare patients by sex, 2024
- Women26358%
- Men19342%
Chronic conditions among Dr. Wanamaker's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Anxiety35%
- Diabetes33%
- Mood disorders31%
- Depression29%
- Chronic kidney disease26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Wanamaker'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
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ryan C. Wanamaker wrote 834 Medicare Part D claims in 2024
In 2024, Dr. Wanamaker wrote 834 Medicare Part D claims for 308 patients. 85% of them were for generic drugs. CMS names the drug for 719 of them, across 19 drugs with 11 or more claims each, at $98,675 in total drug cost. In 2023, CMS named 556 claims across 12 drugs.
Dr. Wanamaker's Part D claims by kind of drug, 2024
- Generic709 claims85%
- Brand-name125 claims15%
Dr. Wanamaker'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. Wanamaker's Part D claims, 2024
- Antibiotics3%24 of 834 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: 5562024: 71929%
Drugs named by CMS: 19 in 2024, 12 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. Ryan C. Wanamaker scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Wanamaker for performance year 2024, reported individually. Dr. Wanamaker accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 76 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Wanamaker, more than 71% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Where Dr. Wanamaker ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 71st percentile76 procedures
- Colonoscopy
- 71st percentile69 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Ryan C. Wanamaker received $18,192 in industry payments from 2016 to 2025
CMS Open Payments shows 953 general payments to Dr. Wanamaker from 47 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $4,911.
General payments to Dr. Wanamaker by program year, 2016 to 2025
General payments to Dr. Wanamaker by kind, 2016 to 2025
- Food and beverage$18,172100%
- Consulting fees$150%
- Education$50%
Companies that paid Dr. Wanamaker 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. Ryan C. Wanamaker graduated from University of North Carolina at Chapel Hill School of Medicine
Dr. Wanamaker graduated from University of North Carolina at Chapel Hill School of Medicine in 2000.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ryan C. Wanamaker'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)Clinician Public Reporting: Overall MIPS Performance (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. Ryan C. Wanamaker
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. Ryan C. Wanamaker's NPI number?
Dr. Ryan C. Wanamaker's NPI number is 1326090358. It was assigned on May 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ryan C. Wanamaker?
Dr. Ryan C. Wanamaker is a gastroenterologist in Roswell, Georgia. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Ryan C. Wanamaker practice?
Dr. Wanamaker practices at 3000 Hospital Boulevard, Roswell, GA 30076. Dr. Wanamaker's primary practice is Wellstar North Fulton Medical Center in Roswell, Georgia, part of Wellstar Health System. Dmand AI also links Dr. Wanamaker to 3 hospitals, 2 group practices and clinics and 1 medical group.
What is Dr. Ryan C. Wanamaker's office phone number?
The practice phone on file for Dr. Wanamaker is (770) 751-2500.
What is Dr. Ryan C. Wanamaker's medical license number?
Dr. Wanamaker holds Georgia license 057335.
Which hospitals is Dr. Ryan C. Wanamaker affiliated with?
Dr. Wanamaker practices at Wellstar North Fulton Medical Center in Roswell, Georgia. Dr. Wanamaker is also affiliated with Memorial Health University Medical Center. Dmand AI links Dr. Wanamaker to 3 more hospitals.
What medical group is Dr. Ryan C. Wanamaker part of?
Dr. Wanamaker is linked to Atlanta Gastroenterology Associates. Dmand AI links Dr. Wanamaker to 1 more medical group.
Does Dr. Ryan C. Wanamaker accept Medicare?
Yes. CMS data shows Dr. Wanamaker billed Medicare for 732 services in 2024, and Dr. Wanamaker accepts Medicare assignment.
What is Dr. Ryan C. Wanamaker's MIPS score?
Dr. Wanamaker's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
How many Medicare patients does Dr. Ryan C. Wanamaker see?
CMS counts 456 Medicare patients who saw Dr. Wanamaker in 2024, with an average age of 72.
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What services does Dr. Ryan C. Wanamaker bill to Medicare?
In 2024, Dr. Wanamaker's most billed Medicare services were office visit, established patient (99214), surgery: digestive system (45385) and hospital inpatient care (99232).
Where did Dr. Ryan C. Wanamaker go to medical school?
Dr. Wanamaker graduated from University of North Carolina at Chapel Hill School of Medicine in 2000.
What drugs does Dr. Ryan C. Wanamaker prescribe most?
In 2024 Medicare Part D data, Dr. Wanamaker's most prescribed drugs by claims were Pantoprazole Sodium, Omeprazole and Sod Sulf-Potass Sulf-Mag Sulf.
Has Dr. Ryan C. Wanamaker received payments from drug or device companies?
CMS Open Payments shows $18,192 in general payments to Dr. Wanamaker from 47 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Ryan C. Wanamaker been practicing?
Dr. Wanamaker graduated from medical school in 2000, 26 years ago.
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