Matthew Bialko, M.D., M.P.H.
NPI 1124551403 · Obstetrics & Gynecology Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Bialko, M.D., M.P.H. is a Obstetrics & Gynecology Physician provider in Saint Louis, MO (NPI 1124551403).
Provider details
- NPI number
- 1124551403
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., M.P.H.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
334 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 127 | $87 |
| Stool Analysis for Blood, By Fecal Hemoglobin Determination By Immunoassay82274 | 89 | $16 |
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 55 | $37 |
| Screening Papanicolaou Smear; Obtaining, Preparing and Conveyance of Cervical Or Vaginal Smear to LaboratoryQ0091 | 47 | $42 |
| Ultrasound Scan of Uterus, Ovaries, Tubes, Cervix and Pelvic Area Through Vagina76830 | 16 | $113 |
Typical Medicare-allowed amounts for these services range $16–$113 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 92 | 31 |
| Raloxifene Hcl | 50 | 16 |
| Estradiolbrand: Estradiol (twice Weekly) | 42 | — |
| Alendronate Sodium | 35 | 15 |
| Fluconazole | 27 | 16 |
| Estrogens, Conjugatedbrand: Premarin | 21 | — |
| Progesterone, Micronizedbrand: Progesterone | 21 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$179 across 9 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (3)
- 224 S Woods Mill Rd Ste 750sChesterfield, MO 63017-3470Phone: (314) 576-9797Fax: (314) 469-7517
- 103 Hilltop Village Shopping Center DrEureka, MO 63025Phone: (314) 576-9797Fax: (314) 469-7517
- 5551 Winghaven Blvd Ste 170O Fallon, MO 63368-3630Phone: (314) 576-9797Fax: (314) 469-7517
Registry dates
- Enumerated
- 2017-04-04
- Last updated
- 2021-06-09
- Certified
- 2021-05-24
Frequently asked questions
- What is Matthew Bialko's NPI number?
- Matthew Bialko's National Provider Identifier (NPI) is 1124551403, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Bialko's specialty?
- Matthew Bialko is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Bialko located?
- Matthew Bialko's practice location on file with NPPES is 6420 Clayton Rd, Saint Louis, MO 63117.
- What is Matthew Bialko's phone number?
- The practice phone number listed in the NPPES registry for Matthew Bialko is (314) 781-4772.
- Does Matthew Bialko accept Medicare?
- Matthew Bialko is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Bialko's NPI active?
- Yes — Matthew Bialko's NPI (1124551403) is active in the NPPES registry as of the last update on 2021-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.