Pericles Xynos, M.D.
Obstetrics & Gynecology Physician · Saint Louis, MO
Pericles Xynos, M.D. is an obstetrics & gynecology physician with a practice address in Saint Louis, Missouri, and NPI 1558562355, issued on May 30, 2007. Check the license (Missouri 2005020354, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Pericles Xynos
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 2005020354 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1031 Bellevue Ave Ste 400, Saint Louis, MO 63117
- Phone
- (314) 977-7455
- Enumerated
- May 30, 2007
- Record last updated
- Feb 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (314) 977-7477
- Medicare enrollment
- Enrolled (PECOS I20090806000406); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 902 in Missouri → Look up another NPI →
Also registered at 1031 Bellevue Ave Ste 400
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amy Bilyeu, MDObstetrics & Gynecology Physician1316238041
- Carolyn Gallagher, CNM, APRN-BCAdvanced Practice Midwife1952645087
- Randall Gibb, MDGynecologic Oncology Physician1639195944
- Shannon Grabosch, M.D.Gynecologic Oncology Physician1003136151
- John Hoff, M.D.Gynecologic Oncology Physician1073540951
- Surbhi Jain, MDObstetrics & Gynecology Physician1043877301
Verify Pericles Xynos 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 2005020354Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
147 Medicare Part D claims for 39 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Medroxyprogesterone Acetate29 claims
- Estradiol15 claims
- Fluconazole15 claims
- Norethindrone13 claims
- Isibloom12 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): 81.6 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).
Bills Medicare through one group practice
- Ssm Health Care GroupSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Pericles Xynos among 902 obstetrics & gynecology physician records in Missouri
Pericles Xynos, M.D. 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 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 46% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2003 · 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
- Amy Bilyeu, MDSaint Louis, MO 631171316238041
- Robert Blaskiewicz, M.D.Saint Louis, MO 631171407880081
- Mary Holloran-Schwartz, M.D.Saint Louis, MO 631171184655474
- Cherie Lefevre, M.D.Saint Louis, MO 631171205867728
- Becky Lynn, MDSaint Louis, MO 631171326003559
- Leslie McCloskey, M.D.Saint Louis, MO 631171609800234
- Kelly Ott, M.D.Saint Louis, MO 631171275734261
- Jill Powell, M.D.Saint Louis, MO 631171932134053
Common questions
What is Pericles Xynos, M.D.'s NPI number?
Pericles Xynos, M.D.'s National Provider Identifier (NPI) is 1558562355, issued on May 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Pericles Xynos, M.D. located?
The NPPES record lists a practice address at 1031 Bellevue Ave Ste 400, Saint Louis, MO, 63117. Phone: (314) 977-7455. Providers update this record themselves, so call before visiting.
How can I verify Pericles Xynos, M.D.'s license?
NPPES lists Missouri license number 2005020354, 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 Pericles Xynos, M.D. prescribe under Medicare Part D?
In 2024, Pericles Xynos, M.D. had 147 Medicare Part D claims for 39 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Pericles Xynos, M.D.'s MIPS final score?
The 2023 MIPS final score is 81.6 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.