NPPES file of Aug 9, 2026

Gregory Paul Vanstavern, MD

Neuro-ophthalmology Physician · Saint Louis, MO

Gregory Paul Vanstavern, MD is a neuro-ophthalmology physician with a practice address in Saint Louis, Missouri, and NPI 1134166051, issued on May 31, 2006. Check the license (Missouri 2009005330, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1134166051
Name
Gregory Paul Vanstavern
Credential
MD
Primary taxonomy
Neuro-ophthalmology Physician 207WX0109X
License number
2009005330 MO
Self-reported in NPPES; status is on the state search
Practice location
4901 Forest Park Ave, Saint Louis, MO 63108
Phone
(314) 362-3937
Enumerated
May 31, 2006
Record last updated
Apr 21, 2025
Fax
(314) 362-3725
Medicaid ID
204925507 MO
Medicare enrollment
Enrolled (PECOS I20090408000555); accepts Medicare assignment
Medical or professional school
Pennsylvania State University College Of Medicine, 1993
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4901 Forest Park Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Eva Aagaard, MDGeneral Practice Physician1144286097
  2. Ashley Ahlbrand, ODOptometrist1215669007
  3. Muhammad Nabeel Akbar, MDNeuro-ophthalmology Physician1780204149
  4. Ashley Altman, FNPNurse Practitioner1457882417
  5. Kelly Amerson, WHNPWomen's Health Nurse Practitioner1205993169
  6. Milan Anadkat, MDDermatology Physician1639267149

Verify Gregory Paul Vanstavern in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license 2009005330
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Missouri license search

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27% fewer Medicare Part D claims than the average neuro-ophthalmology physician in 2024

244 Medicare Part D claims for 60 beneficiaries, against an average of 335 among the 140 providers of this specialty who prescribed in Part D.

  1. Gregory Vanstavern244
  2. Specialty average335

Most prescribed

  1. Pyridostigmine Bromide80 claims
  2. Prednisone52 claims
  3. Gabapentin39 claims
  4. Topiramate21 claims
  5. Mycophenolate Mofetil16 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.

  1. Qualityout of 100 · 30% of the final score71.5
  2. Costout of 100 · 30%59.5
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Washington UniversitySaint Louis, MO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Neuro-ophthalmology Physician providers in Missouri

There are 7 neuro-ophthalmology physician records in Missouri.

The 6 neuro-ophthalmology physician records with the nearest ZIP codes

  1. Muhammad Nabeel Akbar, MDSaint Louis, MO 631081780204149
  2. Evan Jameyfield, MDSaint Louis, MO 631081184185670
  3. James Shepherd, MDSaint Louis, MO 631081558389015
  4. Douglas Snyder, MDSaint Louis, MO 631081891144697
  5. Leanne Stunkel, MDSaint Louis, MO 631081588079107
  6. Ayman Suleiman, MDColumbia, MO 652121437538956

Common questions

What is Gregory Paul Vanstavern, MD's NPI number?

Gregory Paul Vanstavern, MD's National Provider Identifier (NPI) is 1134166051, issued on May 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Paul Vanstavern, MD located?

The NPPES record lists a practice address at 4901 Forest Park Ave, Saint Louis, MO, 63108. Phone: (314) 362-3937. Providers update this record themselves, so call before visiting.

How can I verify Gregory Paul Vanstavern, MD's license?

NPPES lists Missouri license number 2009005330, 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 Gregory Paul Vanstavern, MD prescribe under Medicare Part D?

In 2024, Gregory Paul Vanstavern, MD had 244 Medicare Part D claims for 60 beneficiaries; the average among neuro-ophthalmology physician prescribers was 335. Part D covers Medicare prescriptions only.

What is Gregory Paul Vanstavern, 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.