Erin Gwen Sieck, MD
Glaucoma Specialist (Ophthalmology) Physician · Saint Louis, MO
Erin Gwen Sieck, MD is a glaucoma specialist (ophthalmology) physician with a practice address in Saint Louis, Missouri, and NPI 1649664129, issued on Mar 23, 2015. Check the license (Missouri 2019014012, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Erin Gwen Sieck
- Credential
- MD
- Primary taxonomy
- Glaucoma Specialist (Ophthalmology) Physician 207WX0009X
- License number
- 2019014012 MO
Self-reported in NPPES; status is on the state search - Practice location
- 517 S Euclid Ave, Saint Louis, MO 63110
- Phone
- (314) 362-3431
- Enumerated
- Mar 23, 2015
- Record last updated
- Apr 17, 2025
- Fax
- (314) 362-6564
- Medicaid ID
- 200069058 MO
- Medicare enrollment
- Enrolled (PECOS I20190618000156); accepts Medicare assignment
- Medical or professional school
- University Of Missouri, Kansas City, School Of Medicine, 2015
- Entity
- Type 1 · individual
8 nearest glaucoma specialist (ophthalmology) physician records → All 13 in Missouri → Look up another NPI →
Also registered at 517 S Euclid Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kevin Black, MDPsychiatry Physician1558389007
- Gregory Bligard, MD PHDOphthalmology Physician1871119461
- Robert Feibel, MDOphthalmology Physician1871596890
- Jill Firszt, AUDAudiologist1174788392
Verify Erin Gwen Sieck 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 2019014012Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% more Medicare Part D claims than the average glaucoma specialist (ophthalmology) physician in 2024
5,457 Medicare Part D claims for 836 beneficiaries, against an average of 3,060 among the 430 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Latanoprost1,474 claims
- Dorzolamide-Timolol1,074 claims
- Brimonidine Tartrate643 claims
- Prednisolone Acetate452 claims
- Timolol Maleate314 claims
- Dorzolamide Hcl250 claims
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.
The practice group's MIPS final score for 2023 (Medicare payment program): 79.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,236.80
5 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Research LLC. The 391 providers of this specialty with any payment received $5,284.60 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Washington UniversitySaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erin Gwen Sieck among 13 glaucoma specialist (ophthalmology) physician records in Missouri
Erin Gwen Sieck, MD is one of 13 glaucoma specialist (ophthalmology) physician records with a practice address in Missouri. 100% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 38% of them.
- NPI issued2015 · 38% of these records are older, 46% newer
- In a Medicare fileYes · 100% of these records are
- In the CMS Doctors and Clinicians fileYes · 85% of these records are
- Graduated2015 · median 2015 among the 11 with a school on file
- Record last updated2025 · 8% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0009X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Glaucoma Specialist (Ophthalmology) Physician providers in Missouri
There are 13 glaucoma specialist (ophthalmology) physician records in Missouri.
All 13 in Missouri → Every provider in Saint Louis → Glaucoma Specialist (Ophthalmology) Physician nationwide →
The 8 glaucoma specialist (ophthalmology) physician records with the nearest ZIP codes
- Benjamin Katz, MDSaint Louis, MO 631081518547363
- Ariana Levin, MDSaint Louis, MO 631081538666151
- James Liu, MDSaint Louis, MO 631081093101974
- Ahmed Owda, MDSaint Louis, MO 631081356072904
- Sharon Sabapathypillai, MDSaint Louis, MO 631081164090494
- Steven Shen, MDSaint Louis, MO 631081275279283
- Arsham Sheybani, MDSaint Louis, MO 631081487817995
- Carla Siegfried, MDSaint Louis, MO 631081457379133
Common questions
What is Erin Gwen Sieck, MD's NPI number?
Erin Gwen Sieck, MD's National Provider Identifier (NPI) is 1649664129, issued on Mar 23, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Erin Gwen Sieck, MD located?
The NPPES record lists a practice address at 517 S Euclid Ave, Saint Louis, MO, 63110. Phone: (314) 362-3431. Providers update this record themselves, so call before visiting.
How can I verify Erin Gwen Sieck, MD's license?
NPPES lists Missouri license number 2019014012, 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 Erin Gwen Sieck, MD prescribe under Medicare Part D?
In 2024, Erin Gwen Sieck, MD had 5,457 Medicare Part D claims for 836 beneficiaries; the average among glaucoma specialist (ophthalmology) physician prescribers was 3,060. Part D covers Medicare prescriptions only.
What is Erin Gwen Sieck, MD's MIPS final score?
The 2023 MIPS final score is 79.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.