Quick answers
- Does Vivian C. Nanagas accept Medicare assignment?
- Yes. Medicare's clinician data says Vivian C. Nanagas accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Vivian C. Nanagas see?
- In 2024, CMS data shows 120 Original Medicare patients and 8,739 services for Vivian C. Nanagas. This counts Original Medicare only and measures volume, not quality.
- What is Vivian C. Nanagas's NPI number?
- 1285977033. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Vivian C. Nanagas, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 120 |
|---|---|
| Services billed to Medicare | 8,739 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Test for allergy using allergenic extract (95004)1,759 services
- Test for allergy using allergenic extract injected into skin (95024)646 services
- Professional service for preparation and provision of 1 or more antigens (95165)560 services
- Professional service for multiple injections of allergen (95117)496 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)92 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure68%
- Arthritis46%
- Asthma43%
- Diabetes29%
- Depression23%
Practice locations
Addresses where Vivian C. Nanagas is enrolled with Medicare (CMS data updated October 2, 2026).
- 1101 N National Rd, Family Allergy and AsthmaColumbus, IN 47201 (812) 314‑7046
- 4400 Weston Pointe Dr, Suite 150Zionsville, IN 46077 (317) 732‑4046
Group practices
Medicare enrollment lists Vivian C. Nanagas as a member of this group (CMS data updated October 2, 2026).
- PSF PLLC98 clinicians in the group
Specialties
- Allergy/Immunologyprimary
Other allergist and immunologists in Columbus
Clinicians with the same Medicare primary specialty in Columbus, IN — not a recommendation.
Other clinicians in PSF PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wright State University Boonshoft School Of Medicine |
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1285977033 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians