Joseph Hazan, MD
NPI 1881786960 · Obstetrics & Gynecology Physician · St Peters, MO
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Hazan, MD is a Obstetrics & Gynecology Physician provider in St Peters, MO (NPI 1881786960).
Provider details
- NPI number
- 1881786960
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 35321 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
101 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 | 56 | $87 |
| Stool Analysis for Blood, By Fecal Hemoglobin Determination By Immunoassay82274 | 30 | $16 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 15 | $18 |
Typical Medicare-allowed amounts for these services range $16–$87 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Alendronate Sodium | 234 | 71 |
| Fluconazole | 60 | 21 |
| Valacyclovir Hclbrand: Valacyclovir | 33 | 14 |
| Metronidazole | 31 | 17 |
| Ergocalciferol (vitamin D2)brand: Vitamin D2 | 27 | — |
| Clotrimazole/Betamethasone Dipbrand: Clotrimazole-Betamethasone | 23 | 11 |
| Acyclovir | 19 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$99 across 4 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
Registry dates
- Enumerated
- 2006-09-28
- Last updated
- 2021-12-09
- Certified
- 2021-12-09
Frequently asked questions
- What is Joseph Hazan's NPI number?
- Joseph Hazan's National Provider Identifier (NPI) is 1881786960, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Hazan's specialty?
- Joseph Hazan is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Hazan located?
- Joseph Hazan's practice location on file with NPPES is 4200 N Cloverleaf Dr, St Peters, MO 63376.
- What is Joseph Hazan's phone number?
- The practice phone number listed in the NPPES registry for Joseph Hazan is (636) 928-1800.
- Does Joseph Hazan accept Medicare?
- Joseph Hazan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Hazan's NPI active?
- Yes — Joseph Hazan's NPI (1881786960) is active in the NPPES registry as of the last update on 2021-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.