Catherine Winslow, MD
NPI 1003865205 · Obstetrics & Gynecology Physician · Owosso, MI
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Winslow, MD is a Obstetrics & Gynecology Physician provider in Owosso, MI (NPI 1003865205).
Provider details
- NPI number
- 1003865205
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301072002 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
217 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 47 | $129 |
| Pelvic Exam99459 | 46 | $22 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 44 | $91 |
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 25 | $40 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 21 | $16 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 66 | 45 |
| Clobetasol Propionate | 41 | 23 |
| Estradiolbrand: Estradiol (twice Weekly) | 36 | 11 |
| Progesterone, Micronizedbrand: Progesterone | 25 | 11 |
| Estradiolbrand: Yuvafem | 24 | — |
| Fluconazole | 14 | 11 |
| Alendronate Sodium | 13 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-08
- Last updated
- 2007-07-08
Frequently asked questions
- What is Catherine Winslow's NPI number?
- Catherine Winslow's National Provider Identifier (NPI) is 1003865205, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Winslow's specialty?
- Catherine Winslow is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Winslow located?
- Catherine Winslow's practice location on file with NPPES is 818 W King St, Owosso, MI 48867-2116.
- What is Catherine Winslow's phone number?
- The practice phone number listed in the NPPES registry for Catherine Winslow is (989) 729-4300.
- Does Catherine Winslow accept Medicare?
- Catherine Winslow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Winslow's NPI active?
- Yes — Catherine Winslow's NPI (1003865205) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.