SERGII V ALEKSEIEV MD
NPI 1669758496
Surgery in Rochester, MN
About Sergii V Alekseiev Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SERGII V ALEKSEIEV MD (NPI 1669758496) is an individual surgery provider in Rochester, Minnesota, licensed in Minnesota (82981) and active in the NPI registry since October 2011. He is enrolled in Medicare PECOS, is affiliated with Hillcrest Medical Center, and maintains a secondary practice location in Tulsa.
NPPES Registry Identity
Specialties & Licenses 3
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
Sergii V Alekseiev Md 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
5Medicare enrollment records show Sergii Alekseiev reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rochester, MN 55905
- Reassigned Medicare billing, Minnesota enrollment
- 6,534 clinicians in this Medicare group
Barnsdall, OK 74002
- Reassigned Medicare billing, Oklahoma enrollment
- 820 clinicians in this Medicare group
Tulsa, OK 74104
- Reassigned Medicare billing, Oklahoma enrollment
- 210 clinicians in this Medicare group
Tulsa, OK 74136
- Reassigned Medicare billing, Oklahoma enrollment
- 300 clinicians in this Medicare group
Humble, TX 77338
- Reassigned Medicare billing, Oklahoma enrollment
- 284 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hillcrest Medical Center
Acute Care Hospitals · Tulsa, OKPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 55905 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROCHESTER, MN 55905
ROCHESTER, MN 55905
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 Sergii Alekseiev's NPI number?
The NPI number for Sergii Alekseiev is 1669758496. It was assigned to this individual provider in the NPPES registry on October 25, 2011.
Where is Sergii Alekseiev located?
Sergii Alekseiev practices at 200 1st St SW, Rochester, MN 55905. The listed phone number is (507) 284-2511.
What is Sergii Alekseiev's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Sergii Alekseiev enrolled in Medicare?
Yes. Sergii Alekseiev 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 Sergii Alekseiev's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sergii Alekseiev reassigns Medicare benefits to 5 organizations: Mayo Clinic (Rochester, MN), St. John Physicians, Inc (Barnsdall, OK), Tulsa Hospital Medicine Physicians Group, LLC (Tulsa, OK), Usacs Observation Medicine Services Of Oklahoma, LLC (Tulsa, OK) and Hospitalist Medicine Physicians Of Texas, PLLC (Humble, TX). 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 Sergii Alekseiev's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sergii Alekseiev accept?
Health plans from Blue Cross and Blue Shield of Oklahoma list Sergii Alekseiev 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 Sergii Alekseiev affiliated with any hospitals?
According to CMS data, Sergii Alekseiev is affiliated with Hillcrest Medical Center.
When was this NPI record last updated?
The NPPES record for Sergii Alekseiev was last updated on July 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Sergii V Alekseiev, MD · NPI 1669758496
Surgery physician in Rochester, Minnesota. Individual provider, active in the CMS NPPES registry since October 25, 2011.
## Identity
- **NPI:** 1669758496 (Entity type: Individual)
- **Enumerated:** October 25, 2011
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** 82981 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 1ST ST SW, Rochester, MN 55905-0001
- **Phone:** (507) 284-2511 · **Fax:** (507) 284-0702
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Mayo Clinic (NPI 1114343860, Rochester, MN); St. John Physicians, Inc (NPI 1033176367, Barnsdall, OK); Tulsa Hospital Medicine Physicians Group, LLC (NPI 1144982711, Tulsa, OK); Usacs Observation Medicine Services Of Oklahoma, LLC (NPI 1326739111, Tulsa, OK); Hospitalist Medicine Physicians Of Texas, PLLC (NPI 1629307095, Humble, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2008
## Record status
- **NPPES last updated:** July 24, 2026
- **Other identifiers:** Medicaid 200522280A (OK)
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Source: [NPI Profile](https://npiprofile.com/npi/1669758496) · Data from the CMS NPPES public registry.