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GLEN A. REZNIKOFF M.D.
NPI 1457348088
Internal Medicine - Hematology & Oncology in Fairfield, CT

Active since September 29, 2005PECOS EnrolledAccepts Medicare Assignment
84.47/100
CMS Quality Rating
425 POST ROAD, SOUTH LOBBY, FAIRFIELD, CT 06824(203) 255-4545(203) 254-1191 Get Directions Write a Review

NPPES record last updated: February 24, 2014. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Glen A. Reznikoff M.d. NPPES

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

GLEN A. REZNIKOFF M.D. (NPI 1457348088) is an individual hematology & oncology provider in Fairfield, Connecticut, licensed in Connecticut (035191) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS and is a graduate of Saint Louis University School Of Medicine (1989).

NPPES Registry Identity

NPI1457348088
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameGLEN A. REZNIKOFFCredential: M.D.
Location Address425 POST ROAD, SOUTH LOBBYFairfield, CT 06824
Mailing Address425 Post Road, South LobbyFairfield, CT 06824 · (203) 255-4545 · Fax (203) 254-1191
Phone(203) 255-4545
Fax(203) 254-1191
Sole ProprietorNo
Medical School CMSSaint Louis University School Of MedicineGraduated 1989
Enumeration DateSeptember 29, 2005
Last NPPES UpdateFebruary 24, 2014
✔ NPI 1457348088 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in CT · 035191
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.
Also ListedInternal MedicineTaxonomy 207R00000X · License 035191 (CT)
425 POST ROAD, Fairfield, CT 06824
Open in Google Maps ↗

Other Identifiers 3

Medicare ID-Type Unspecified830000076CT
Medicare UPINS05479
Medicaid001351915CT

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

Glen A. Reznikoff M.d. 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 ID7113961681
PECOS Enrollment IDI20100311000667
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

2

Medicare enrollment records show Glen Reznikoff reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Svmc Holdings, Inc
4.1 mi
General Acute Care Hospital
2800 MAIN ST
Bridgeport, CT 06606
  • Reassigned Medicare billing, Connecticut enrollment
  • 32 clinicians in this Medicare group
NPI 1942224696 (203) 576-5551
Hartford Healthcare Medical Group Specialists, PLLC
51 mi
Surgery
85 SEYMOUR ST STE 415
Hartford, CT 06106
  • Reassigned Medicare billing, Connecticut enrollment
  • 1,921 clinicians in this Medicare group
NPI 1023584216 (860) 246-2071

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 7

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 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.
311 services158 patients
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.
127 services79 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
72 services40 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
63 services40 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
40 services40 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.
39 services30 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06824 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.

84.47/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality79.28
Promoting Interoperability100
Improvement Activities40
Cost59.59

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BRETT KING MD LLC
Dermatology
425 POST ROAD, 2ND FLOOR
FAIRFIELD, CT 06824
Greater Bridgeport Planning Region (203) 292-9490
DR. KENNETH ALAN KINGSLY MD
Urology
425 POST ROAD, 2ND FLOOR
FAIRFIELD, CT 06824
Greater Bridgeport Planning Region (203) 254-1576

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 Glen Reznikoff's NPI number?

The NPI number for Glen Reznikoff is 1457348088. It was assigned to this individual provider in the NPPES registry on September 29, 2005.

Where is Glen Reznikoff located?

Glen Reznikoff practices at 425 Post Road South Lobby, Fairfield, CT 06824. The listed phone number is (203) 255-4545.

What is Glen Reznikoff's specialty?

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

Is Glen Reznikoff enrolled in Medicare?

Yes. Glen Reznikoff 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 Glen Reznikoff's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Glen Reznikoff reassigns Medicare benefits to 2 organizations: Svmc Holdings, Inc (Bridgeport, CT) and Hartford Healthcare Medical Group Specialists, PLLC (Hartford, 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 Glen Reznikoff's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Glen Reznikoff accept?

Health plans from Anthem Blue Cross and Blue Shield list Glen Reznikoff 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 Glen Reznikoff was last updated on February 24, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.