NPPES file of Aug 9, 2026

Nicole A. Xynos, M.D.

Obstetrics & Gynecology Physician · Saint Louis, MO

Nicole A. Xynos, M.D. is an obstetrics & gynecology physician with a practice address in Saint Louis, Missouri, and NPI 1598966392, issued on May 30, 2007. Check the license (Missouri 2008010947, 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
1598966392
Name
Nicole A. Xynos
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
2008010947 MO
Self-reported in NPPES; status is on the state search
Practice location
10010 Kennerly RD, Saint Louis, MO 63128
Phone
(314) 525-6072
Enumerated
May 30, 2007
Record last updated
Jul 11, 2024
Medicare enrollment
Enrolled (PECOS I20080723000878); accepts Medicare assignment
Medical or professional school
Creighton University School Of Medicine, 2004
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 10010 Kennerly RD

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

  1. Shepherd Abrams, M.D.Diagnostic Radiology Physician1518941335
  2. Laura Adam, M.D.Surgical Critical Care Physician1396954657
  3. Soha Afzal, DOInternal Medicine Physician1023696507
  4. Muhaddis Ahmad, M.D.Hospitalist Physician1417576984
  5. Haley Anderson, PHARMDPharmacist1548889389
  6. Rebecca Appelgren, MDAnesthesiology Physician1306825955

Verify Nicole A. Xynos 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 2008010947
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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64% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

59 Medicare Part D claims for 18 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Nicole Xynos59
  2. Specialty average165

Most prescribed

  1. Valacyclovir18 claims
  2. Estradiol17 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.

  1. Qualityout of 100 · 30% of the final score76.1
  2. Costout of 100 · 30%54.3
  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).

Industry payments in 2024: $147.23

1 payment: food and beverage; the largest payer was Hologic Sales and Service, LLC. 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.

  1. Nicole Xynos$147.23
  2. Specialty average$1,030.61

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

  1. Mercy Womens Services LLCSaint Louis, MO

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

Nicole A. Xynos among 902 obstetrics & gynecology physician records in Missouri

Nicole A. 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
  • Graduated2004 · median 2007 among the 528 with a school on file
  • Record last updated2024 · 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.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Richard Brennan, M.D.Saint Louis, MO 631281316986540
  2. James Brennan, M.D.Saint Louis, MO 631281699714360
  3. Robert Brennan, M.D.Saint Louis, MO 631281326087024
  4. Pamela Campbell, DOSaint Louis, MO 631281447259304
  5. Kaci Durbin, M.D.Saint Louis, MO 631281053583708
  6. Salina Green, M.D.Saint Louis, MO 631281508985953
  7. Jamie Joyce, M.D.Saint Louis, MO 631281184825358
  8. Ivonne Negron, MDSt Louis, MO 631281740341759

Common questions

What is Nicole A. Xynos, M.D.'s NPI number?

Nicole A. Xynos, M.D.'s National Provider Identifier (NPI) is 1598966392, issued on May 30, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Nicole A. Xynos, M.D. located?

The NPPES record lists a practice address at 10010 Kennerly RD, Saint Louis, MO, 63128. Phone: (314) 525-6072. Providers update this record themselves, so call before visiting.

How can I verify Nicole A. Xynos, M.D.'s license?

NPPES lists Missouri license number 2008010947, 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 Nicole A. Xynos, M.D. prescribe under Medicare Part D?

In 2024, Nicole A. Xynos, M.D. had 59 Medicare Part D claims for 18 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Nicole A. 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.