Margaret Rosanna Gray-Swain, MD
Obstetrics & Gynecology Physician · Saint Louis, MO
Margaret Rosanna Gray-Swain, MD is an obstetrics & gynecology physician with a practice address in Saint Louis, Missouri, and NPI 1245267178, issued on Jun 27, 2006. Check the license (Missouri 2006013161, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Margaret Rosanna Gray-Swain
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 2006013161 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1110 Highlands Plaza Dr E, Saint Louis, MO 63110
- Phone
- (314) 286-2620
- Enumerated
- Jun 27, 2006
- Record last updated
- Feb 12, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (314) 286-2621
- Medicare enrollment
- Enrolled (PECOS I20071130000549); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 2002
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 902 in Missouri → Look up another NPI →
Also registered at 1110 Highlands Plaza Dr E
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Margaret Rosanna Gray-Swain 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 2006013161Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
115 Medicare Part D claims for 38 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Valacyclovir22 claims
- Estradiol15 claims
- Clobetasol Propionate14 claims
- Metronidazole11 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.
Industry payments in 2024: $514.06
27 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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
- Physician Groups LCSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret Rosanna Gray-Swain among 902 obstetrics & gynecology physician records in Missouri
Margaret Rosanna Gray-Swain, MD is one of 902 obstetrics & gynecology 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 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 54% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2002 · median 2007 among the 528 with a school on file
- Record last updated2021 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
332 obstetrics & gynecology physician records list a practice address in Saint Louis
They are 332 of the 27,605 NPPES records with a practice address in Saint Louis, and 902 obstetrics & gynecology physician records in Missouri.
All 902 in Missouri → Every provider in Saint Louis → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Richard Bolanos, M.D.Saint Louis, MO 631101225358369
- Andrew Galakatos, MDSt Louis, MO 631101447523485
- Jade James-Halbert, MDSaint Louis, MO 631101073514592
- Kerith Lucco, M.D.Saint Louis, MO 631101588780662
- Cory Miller, MDSaint Louis, MO 631101578875647
- Emiko Petrosky, M.D.Saint Louis, MO 631101235442864
- Anna Rabinov, ANNA RABINOVSaint Louis, MO 631101003062613
- Sharman Russell, MDSaint Louis, MO 631101780909705
Common questions
What is Margaret Rosanna Gray-Swain, MD's NPI number?
Margaret Rosanna Gray-Swain, MD's National Provider Identifier (NPI) is 1245267178, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Rosanna Gray-Swain, MD located?
The NPPES record lists a practice address at 1110 Highlands Plaza Dr E, Saint Louis, MO, 63110. Phone: (314) 286-2620. Providers update this record themselves, so call before visiting.
How can I verify Margaret Rosanna Gray-Swain, MD's license?
NPPES lists Missouri license number 2006013161, 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 Margaret Rosanna Gray-Swain, MD prescribe under Medicare Part D?
In 2024, Margaret Rosanna Gray-Swain, MD had 115 Medicare Part D claims for 38 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.