Anna Ziganshina, M.D.
NPI 1629431630 · Endocrinology, Diabetes & Metabolism Physician · Danbury, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anna Ziganshina, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Danbury, CT (NPI 1629431630).
Provider details
- NPI number
- 1629431630
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- 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
10 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
940 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 321 | $186 |
| 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 | 241 | $17 |
| Prolonged Office Or Other Outpatient Evaluation and Management Service(s) Beyond the Maximum Required Time of the Primary Procedure Which Has Been Selected Using Total Time on the Date of the Primary Service; Each Additional 15 Minutes By the Physician OrG2212 | 161 | $33 |
| Hemoglobin A1c Level83036 | 86 | $9 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 56 | $34 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Semaglutidebrand: Ozempic | 373 | 77 |
| Levothyroxine Sodium | 262 | 67 |
| Alendronate Sodium | 183 | 46 |
| Metformin Hclbrand: Metformin Hcl Er | 167 | 54 |
| Empagliflozinbrand: Jardiance | 164 | 50 |
| Tirzepatidebrand: Mounjaro | 158 | 37 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,596 across 122 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
- 2016-03-29
- Last updated
- 2021-08-13
- Certified
- 2021-08-13
Frequently asked questions
- What is Anna Ziganshina's NPI number?
- Anna Ziganshina's National Provider Identifier (NPI) is 1629431630, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anna Ziganshina's specialty?
- Anna Ziganshina is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Anna Ziganshina located?
- Anna Ziganshina's practice location on file with NPPES is 24 Hospital Ave, Danbury, CT 06810-6099.
- What is Anna Ziganshina's phone number?
- The practice phone number listed in the NPPES registry for Anna Ziganshina is (203) 739-8105.
- Does Anna Ziganshina accept Medicare?
- Anna Ziganshina is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anna Ziganshina's NPI active?
- Yes — Anna Ziganshina's NPI (1629431630) is active in the NPPES registry as of the last update on 2021-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.