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YELENA PRISTYAZHNYUK
NPI 1184044927
Internal Medicine - Hematology & Oncology in Hartford, CT

Active since April 20, 2014PECOS EnrolledAccepts Medicare Assignment
86.41/100
CMS Quality Rating
HHC CANCER INSTITUTE AT HARTFORD HOSPITAL, 85 RETREAT AVE, HARTFORD, CT 06106(860) 249-6291(860) 728-0151 Get Directions Write a Review

NPPES record last updated: January 4, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Yelena Pristyazhnyuk NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

YELENA PRISTYAZHNYUK (NPI 1184044927) is an individual hematology & oncology provider in Hartford, Connecticut, licensed in Connecticut (65171) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS and is a graduate of Other (2014).

NPPES Registry Identity

NPI1184044927
Entity TypeIndividualFemale
Primary Taxonomy207RH0003X
Provider Legal NameYELENA PRISTYAZHNYUK
Location AddressHHC CANCER INSTITUTE AT HARTFORD HOSPITAL, 85 RETREAT AVEHartford, CT 06106-2555
Mailing Address55 Dina CtStaten Island, NY 10306-1185 · (646) 515-7630
Phone(860) 249-6291
Fax(860) 728-0151
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateApril 20, 2014
Last NPPES UpdateJanuary 4, 2021
NPPES CertifiedDecember 30, 2020
✔ NPI 1184044927 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in CT · 65171
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
HHC CANCER INSTITUTE AT HARTFORD HOSPITAL, Hartford, CT 06106
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.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

Yelena Pristyazhnyuk 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.

PECOS PAC ID9931521028
PECOS Enrollment IDI20200618000926
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Yelena Pristyazhnyuk reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Hartford Hospital
0.8 mi
Surgery
80 SEYMOUR ST, HARTFORD HOSPITAL PROFESSIONAL SERVICES
Hartford, CT 06102
  • Reassigned Medicare billing, Connecticut enrollment
  • Also billed through NPI 1770696643 (Connecticut)
  • 1,333 clinicians in this Medicare group
NPI 1407806391 (860) 545-7602
Windham Community Memorial Hospital, Inc.
7.3 mi
General Acute Care Hospital
112 MANSFIELD AVE
Willimantic, CT 06226
  • Reassigned Medicare billing, Connecticut enrollment
  • 302 clinicians in this Medicare group
NPI 1023191467 (860) 456-6752
William W Backus Hospital
34 mi
Psychiatric Unit
326 WASHINGTON ST
Norwich, CT 06360
  • Reassigned Medicare billing, Connecticut enrollment
  • 430 clinicians in this Medicare group
NPI 1730243536 (860) 889-8331

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
87 services54 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
60 services29 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
32 services15 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
23 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06106 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$183.10 typical visit price
range $60.82 – $183.10
Typical copayment $45.77 (range $15.20 – $45.77)
Most-billed visit code 99205
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

86.41/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality81.99
Promoting Interoperability100
Improvement Activities40
Cost43.03

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 Yelena Pristyazhnyuk's NPI number?

The NPI number for Yelena Pristyazhnyuk is 1184044927. It was assigned to this individual provider in the NPPES registry on April 20, 2014.

Where is Yelena Pristyazhnyuk located?

Yelena Pristyazhnyuk practices at Hhc Cancer Institute At Hartford Hospital 85 Retreat Ave, Hartford, CT 06106. The listed phone number is (860) 249-6291.

What is Yelena Pristyazhnyuk's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Yelena Pristyazhnyuk enrolled in Medicare?

Yes. Yelena Pristyazhnyuk 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 Yelena Pristyazhnyuk's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Yelena Pristyazhnyuk reassigns Medicare benefits to 3 organizations: Hartford Hospital (Hartford, CT), Windham Community Memorial Hospital, Inc. (Willimantic, CT) and William W Backus Hospital (Norwich, 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 Yelena Pristyazhnyuk's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Yelena Pristyazhnyuk accept?

Health plans from Anthem Blue Cross and Blue Shield list Yelena Pristyazhnyuk 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.

When was this NPI record last updated?

The NPPES record for Yelena Pristyazhnyuk was last updated on January 4, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.