OLGA GRISHENKOVA CRNA
NPI 1306316559
Nurse Anesthetist, Certified Registered in Hartford, CT
About Olga Grishenkova Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OLGA GRISHENKOVA CRNA (NPI 1306316559) is an individual nurse anesthetist, certified registered in Hartford, Connecticut, licensed in Connecticut (111864) and active in the NPI registry since November 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses
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
Olga Grishenkova Crna 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 Olga Grishenkova reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Hartford, CT 06106
- Reassigned Medicare billing, Connecticut enrollment
- 417 clinicians in this Medicare group
Hartford, CT 06105
- Reassigned Medicare billing, Connecticut enrollment
- 302 clinicians in this Medicare group
West Hartford, CT 06105
- Reassigned Medicare billing, Connecticut enrollment
- 86 clinicians in this Medicare group
Hamden, CT 06514
- Reassigned Medicare billing, Connecticut enrollment
- 3,728 clinicians in this Medicare group
Shelton, CT 06484
- Reassigned Medicare billing, Connecticut enrollment
- 727 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 2
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06102 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
HARTFORD, CT 06102
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 Olga Grishenkova's NPI number?
The NPI number for Olga Grishenkova is 1306316559. It was assigned to this individual provider in the NPPES registry on November 30, 2018.
Where is Olga Grishenkova located?
Olga Grishenkova practices at 80 Seymour St, Hartford, CT 06102. The listed phone number is (860) 545-5000.
What is Olga Grishenkova's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Olga Grishenkova enrolled in Medicare?
Yes. Olga Grishenkova 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 Olga Grishenkova's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Olga Grishenkova reassigns Medicare benefits to 5 organizations: Connecticut Gi PLLC (Hartford, CT), Woodland Anesthesia Associates PC (Hartford, CT), Charter Anesthesiology LLC (West Hartford, CT), Yale University (Hamden, CT) and Integrated Anesthesia Associates LLC (Shelton, CT). 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 Olga Grishenkova's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Olga Grishenkova was last updated on November 30, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years 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.
# Olga Grishenkova, CRNA · NPI 1306316559
Nurse Anesthetist, Certified Registered physician in Hartford, Connecticut. Individual provider, active in the CMS NPPES registry since November 30, 2018.
## Identity
- **NPI:** 1306316559 (Entity type: Individual)
- **Enumerated:** November 30, 2018
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 111864 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 80 SEYMOUR ST, Hartford, CT 06102-8000
- **Phone:** (860) 545-5000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Connecticut Gi PLLC (NPI 1023124625, Hartford, CT); Woodland Anesthesia Associates PC (NPI 1437109824, Hartford, CT); Charter Anesthesiology LLC (NPI 1730674532, West Hartford, CT); Yale University (NPI 1134391824, Hamden, CT); Integrated Anesthesia Associates LLC (NPI 1881636397, Shelton, CT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** November 30, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1306316559) · Data from the CMS NPPES public registry.