Dr. Ryan Diederich, MD
- Medicare services, 2022
- 17
- Part D claims, 2024
- 72
- Publications
- 2
- Hospital affiliations
- 1
- Industry payments
- $11,191
- Practice address
- 6800 State Route 162, Maryville, IL 62062
- Practice phone
- Call (618) 288-5711
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Diederich's professional email, personal email and mobile number
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Dr. Ryan Diederich is a plastic and reconstructive surgery physician in Maryville, Illinois
Dr. Diederich practices at Anderson Hospital in Maryville, Illinois, part of Anderson Healthcare.
Dr. Diederich's NPI, 1942422498, was assigned on May 3, 2007. Dr. Diederich graduated from Southern Illinois University School of Medicine in 2005. Dr. Diederich holds Illinois license 125-050203.
- NPI
- 1942422498NPI Registry (opens in a new tab)
- NPI enumeration date
- May 3, 2007
- NPI status
- Active
- Practice phone
- (618) 288-5711
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Ryan Diederich practices at Anderson Hospital in Maryville, Illinois
Dr. Diederich's primary practice is Anderson Hospital, at 6800 State Route 162, Maryville, IL 62062 in Madison County. The practice phone is (618) 288-5711.
- Anderson Hospital6800 State Route 162, Maryville, IL 62062 · Madison CountyPhone(618) 288-5711
Source: Dmand AI Affiliation Data
Dr. Ryan Diederich is affiliated with 1 site of care
Dr. Diederich's primary practice is Anderson Hospital in Maryville, Illinois, part of Anderson Healthcare.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ryan Diederich's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diederich practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Anderson Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ryan Diederich is one of 109 plastics and reconstructive surgery physicians in Illinois
Plastic and reconstructive surgery is Dr. Diederich's primary specialty in the NPI Registry, under taxonomy code 2086S0122X. Dr. Diederich is licensed in Illinois.
Specialties and state licenses
- Plastic and reconstructive surgery, IllinoisPrimary
Plastics and reconstructive surgery physicians near Dr. Diederich
Counts of plastics and reconstructive surgery physicians 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 Diederich billed Medicare for 17 services in 2022
CMS data shows 17 Medicare services from Dr. Diederich across 1 procedure code in 2022, all of them office visits. Medicare paid $733 for them. Every service was in an office.
Dr. Diederich's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 242022: 1729%
Dr. Diederich compared with the Illinois median for plastics and reconstructive surgery physicians, 2022
- Dr. Diederich
- Illinois median
- Medicare services
- 17vs 5469% below
- Part D claims
- 20vs 2829% below
Medians across 86 plastics and reconstructive surgery physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Diederich's most billed Medicare procedure codes, 2022
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. Diederich and other plastics and reconstructive surgery physicians in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ryan Diederich's patients have a median age of 52
Across all payers, Dmand AI patient panel data puts Dr. Diederich's median patient age at 52, with 76% women.
Dr. Diederich's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women76%
- Men24%
Source: Dmand AI Patient Panel Data
Dr. Ryan Diederich wrote 72 Medicare Part D claims in 2024
In 2024, Dr. Diederich wrote 72 Medicare Part D claims for 30 patients. 99% of them were for generic drugs. CMS names the drug for 20 of them, across 1 drug with 11 or more claims each, at $105 in total drug cost. In 2023, CMS named 15 claims across 1 drug.
Dr. Diederich's Part D claims by kind of drug, 2024
- Generic71 claims99%
- Brand-name and other1 claims1%
Dr. Diederich'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. Diederich's Part D claims, 2024
- Opioids36%26 of 72 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: 152024: 2033%
Drugs named by CMS: 1 in 2024, 1 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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Dr. Ryan Diederich has 2 publications on record
Dmand AI links 2 papers to Dr. Diederich, published from 2014 to 2023. Dr. Diederich's most frequent co-authors are Grace Catherine Keane, MD and Terence Michael Myckatyn, MD.
Dr. Diederich's most frequent co-authors
Recent publications by Dr. Diederich
See who Dr. Diederich researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Diederich works with, so you can find a warm path to the right plastics and reconstructive surgery physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ryan Diederich received $11,191 in industry payments from 2016 to 2025
CMS Open Payments shows 160 general payments to Dr. Diederich from 14 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 45% of the total. Allergan Inc. paid the most, $4,298.
General payments to Dr. Diederich by program year, 2016 to 2025
General payments to Dr. Diederich by kind, 2016 to 2025
- Food and beverage$5,03045%
- Travel and lodging$3,66133%
- Gifts$1,35012%
- Education$1,15010%
Companies that paid Dr. Diederich 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 Diederich graduated from Southern Illinois University School of Medicine
Dr. Diederich graduated from Southern Illinois University School of Medicine in 2005.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ryan Diederich'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 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) |
| 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 Diederich
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 Diederich's NPI number?
Dr. Ryan Diederich's NPI number is 1942422498. It was assigned on May 3, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Ryan Diederich?
Dr. Ryan Diederich is a plastic and reconstructive surgery physician in Maryville, Illinois. The primary specialty in the NPI Registry is Plastic and Reconstructive Surgery Physician (taxonomy code 2086S0122X).
Where does Dr. Ryan Diederich practice?
Dr. Diederich practices at 6800 State Route 162, Maryville, IL 62062. Dr. Diederich's primary practice is Anderson Hospital in Maryville, Illinois, part of Anderson Healthcare.
What is Dr. Ryan Diederich's office phone number?
The practice phone on file for Dr. Diederich is (618) 288-5711.
What is Dr. Ryan Diederich's medical license number?
Dr. Diederich holds Illinois license 125-050203.
Which hospitals is Dr. Ryan Diederich affiliated with?
Dr. Diederich practices at Anderson Hospital in Maryville, Illinois.
Does Dr. Ryan Diederich accept Medicare?
Yes. CMS data shows Dr. Diederich billed Medicare for 17 services in 2022.
What services does Dr. Ryan Diederich bill to Medicare?
In 2022, Dr. Diederich's most billed Medicare services were office visit, established patient (99212).
Where did Dr. Ryan Diederich go to medical school?
Dr. Diederich graduated from Southern Illinois University School of Medicine in 2005.
What drugs does Dr. Ryan Diederich prescribe most?
In 2024 Medicare Part D data, Dr. Diederich's most prescribed drugs by claims were Ondansetron HCl.
Show 4 more questionsShow fewer questions
Has Dr. Ryan Diederich received payments from drug or device companies?
CMS Open Payments shows $11,191 in general payments to Dr. Diederich from 14 companies from 2016 to 2025. The largest total came from Allergan Inc.
How long has Dr. Ryan Diederich been practicing?
Dr. Diederich graduated from medical school in 2005, 21 years ago.
Does Dr. Ryan Diederich do research?
Dmand AI links 2 publications to Dr. Diederich, published from 2014 to 2023.
Who does Dr. Ryan Diederich publish with?
Dr. Diederich's most frequent co-authors are Grace Catherine Keane, MD (1 shared paper) and Terence Michael Myckatyn, MD (1 shared paper).
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