Catherine Berzolla, MD
NPI 1760698872 · Obstetrics & Gynecology Physician · Greenwich, CT
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Berzolla, MD is a Obstetrics & Gynecology Physician provider in Greenwich, CT (NPI 1760698872).
Provider details
- NPI number
- 1760698872
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 256580 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
127 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) |
|---|---|---|
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 46 | $41 |
| Screening Papanicolaou Smear; Obtaining, Preparing and Conveyance of Cervical Or Vaginal Smear to LaboratoryQ0091 | 40 | $46 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 18 | $95 |
| Ultrasound Scan of Uterus, Ovaries, Tubes, Cervix and Pelvic Area Through Vagina76830 | 12 | $126 |
| Stool Analysis for Blood, By Fecal Hemoglobin Determination By Immunoassay82274 | 11 | $16 |
Typical Medicare-allowed amounts for these services range $16–$126 (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 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 39 | 23 |
| Estrogens, Conjugatedbrand: Premarin | 16 | — |
| Triamcinolone Acetonide | 14 | 11 |
| Estradiolbrand: Yuvafem | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 106 Noroton Ave Ste 203Darien, CT 06820-5237Phone: (203) 210-2890Fax: (203) 210-2891
Registry dates
- Enumerated
- 2007-05-15
- Last updated
- 2018-11-01
Frequently asked questions
- What is Catherine Berzolla's NPI number?
- Catherine Berzolla's National Provider Identifier (NPI) is 1760698872, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Berzolla's specialty?
- Catherine Berzolla is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Berzolla located?
- Catherine Berzolla's practice location on file with NPPES is 644 W Putnam Ave, Greenwich, CT 06830-6088.
- What is Catherine Berzolla's phone number?
- The practice phone number listed in the NPPES registry for Catherine Berzolla is (203) 210-2880.
- Does Catherine Berzolla accept Medicare?
- Catherine Berzolla is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Berzolla's NPI active?
- Yes — Catherine Berzolla's NPI (1760698872) is active in the NPPES registry as of the last update on 2018-11-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.