Dennis Lawrence Ryll, M.D.
Ophthalmology Physician · Chesterfield, MO
Dennis Lawrence Ryll, M.D. is an ophthalmology physician with a practice address in Chesterfield, Missouri, and NPI 1679917405, issued on Apr 23, 2013. Check the license (Missouri R7627, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Dennis Lawrence Ryll
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- R7627 MO
Self-reported in NPPES; status is on the state search - Practice location
- 390 S Woods Mill RD, Chesterfield, MO 63017
- Phone
- (314) 503-4196
- Enumerated
- Apr 23, 2013
- Record last updated
- Apr 23, 2013 (not updated in 13 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 342 in Missouri → Look up another NPI →
Verify Dennis Lawrence Ryll in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license R7627Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average ophthalmology physician in 2024
21 Medicare Part D claims, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Dennis Lawrence Ryll among 342 ophthalmology physician records in Missouri
Dennis Lawrence Ryll, M.D. is one of 342 ophthalmology physician records with a practice address in Missouri. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 78% of them.
- NPI issued2013 · 78% of these records are older, 20% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2013 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Missouri
There are 342 ophthalmology physician records in Missouri.
All 342 in Missouri → Every provider in Chesterfield → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Whitney Brothers, M.D.Chesterfield, MO 630171760680391
- Adam Fedyk, M.D.Town Country, MO 630171356544209
- Nancy Holekamp, M.D.Chesterfield, MO 630171831197557
- Farheen N Kazi Raja, M.D.Chesterfield, MO 630171619175247
- Mujtaba Qazi, M.D.Chesterfield, MO 630171124010434
- Ibrahim Sayed-Ahmed, MD MSChesterfield, MO 630171487158556
- Steven Shields, M.D.Chesterfield, MO 630171548296452
- Paul Tesser, MDChesterfield, MO 630171215945720
Common questions
What is Dennis Lawrence Ryll, M.D.'s NPI number?
Dennis Lawrence Ryll, M.D.'s National Provider Identifier (NPI) is 1679917405, issued on Apr 23, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Dennis Lawrence Ryll, M.D. located?
The NPPES record lists a practice address at 390 S Woods Mill RD, Chesterfield, MO, 63017. Phone: (314) 503-4196. Providers update this record themselves, so call before visiting.
How can I verify Dennis Lawrence Ryll, M.D.'s license?
NPPES lists Missouri license number R7627, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Dennis Lawrence Ryll, M.D. prescribe under Medicare Part D?
In 2024, Dennis Lawrence Ryll, M.D. had 21 Medicare Part D claims; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.