LYDIA HELEN NEFEDOV MSN, AGNP-BC
NPI 1902349772
Nurse Practitioner - Acute Care in San Antonio, TX
About Lydia Helen Nefedov Msn, Agnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LYDIA HELEN NEFEDOV MSN, AGNP-BC (NPI 1902349772) is an individual acute care provider in San Antonio, Texas, licensed in Ohio (APRN.CNP.0040200) and active in the NPI registry since November 2016. She is enrolled in Medicare PECOS, is affiliated with Ascension Ne Wisconsin - St Elizabeth Campus, and maintains a secondary practice location in Kettering.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Lydia Helen Nefedov Msn, Agnp-bc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
11Medicare enrollment records show Lydia Nefedov reassigns Medicare billing to 11 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Antonio, TX 78229
- Reassigned Medicare billing, Texas enrollment
- 6 clinicians in this Medicare group
San Antonio, TX 78258
- Reassigned Medicare billing, Texas enrollment
- 964 clinicians in this Medicare group
San Antonio, TX 78223
- Reassigned Medicare billing, Texas enrollment
- 452 clinicians in this Medicare group
Austin, TX 78705
- Reassigned Medicare billing, Texas enrollment
- 140 clinicians in this Medicare group
Bloomington, IN 47408
- Reassigned Medicare billing, Indiana enrollment
- 783 clinicians in this Medicare group
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 5,212 clinicians in this Medicare group
Henderson, NV 89011
- Reassigned Medicare billing, Nevada enrollment
- 23 clinicians in this Medicare group
Las Vegas, NV 89102
- Reassigned Medicare billing, Nevada enrollment
Miamisburg, OH 45342
- Reassigned Medicare billing, Ohio enrollment
- 984 clinicians in this Medicare group
Ellendale, ND 58436
- Reassigned Medicare billing, North Dakota enrollment
- 1,464 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ascension NE Wisconsin - St Elizabeth Campus
Acute Care Hospitals · Appleton, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78229 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 17
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN ANTONIO, TX 78229
SAN ANTONIO, TX 78229
SAN ANTONIO, TX 78229
SAN ANTONIO, TX 78229
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Lydia Nefedov's NPI number?
The NPI number for Lydia Nefedov is 1902349772. It was assigned to this individual provider in the NPPES registry on November 28, 2016.
Where is Lydia Nefedov located?
Lydia Nefedov practices at 3463 Magic Dr Ste T21, San Antonio, TX 78229. The listed phone number is (210) 614-8101.
What is Lydia Nefedov's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Lydia Nefedov enrolled in Medicare?
Yes. Lydia Nefedov is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Lydia Nefedov's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lydia Nefedov reassigns Medicare benefits to 11 organizations: San Antonio Assisting Services, LLC (San Antonio, TX), Bhs Physicians Network, Inc (San Antonio, TX), Health And Human Services Commission (San Antonio, TX), Post Acute Specialists Of Texas PA (Austin, TX), Indiana University Health Southern Indiana Physicians, LLC (Bloomington, IN) and 6 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Lydia Nefedov's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lydia Nefedov accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and Blue Cross Blue Shield of North Dakota and 8 other insurers list Lydia Nefedov as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Lydia Nefedov affiliated with any hospitals?
According to CMS data, Lydia Nefedov is affiliated with Ascension NE Wisconsin - St Elizabeth Campus.
When was this NPI record last updated?
The NPPES record for Lydia Nefedov was last updated on March 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Lydia Helen Nefedov, MSN, AGNP-BC · NPI 1902349772
Acute Care physician in San Antonio, Texas. Individual provider, active in the CMS NPPES registry since November 28, 2016.
## Identity
- **NPI:** 1902349772 (Entity type: Individual)
- **Enumerated:** November 28, 2016
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** APRN.CNP.0040200 (Ohio)
- **Sole proprietor:** No
## Practice location
- **Address:** 3463 MAGIC DR STE T21, San Antonio, TX 78229-3621
- **Phone:** (210) 614-8101
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 11 organizations under Medicare reassignment (form CMS-855R): San Antonio Assisting Services, LLC (NPI 1043469323, San Antonio, TX); Bhs Physicians Network, Inc (NPI 1598958431, San Antonio, TX); Health And Human Services Commission (NPI 1093894859, San Antonio, TX); Post Acute Specialists Of Texas PA (NPI 1942859350, Austin, TX); Indiana University Health Southern Indiana Physicians, LLC (NPI 1013953983, Bloomington, IN); and 6 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** March 11, 2026
- **Other identifiers:** Other 090540884 (IN)
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Source: [NPI Profile](https://npiprofile.com/npi/1902349772) · Data from the CMS NPPES public registry.