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DR. VIVIAN PATRICIA BYKERK VIVIAN BYKERK MD
NPI 1497089502
Internal Medicine - Rheumatology in New York, NY

Active since September 22, 2009PECOS Enrolled
535 E 70TH ST, NEW YORK, NY 10021(212) 774-7520(212) 606-1605 Get Directions Write a Review

NPPES record last updated: April 27, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Vivian Patricia Bykerk Vivian Bykerk Md NPPES

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

DR. VIVIAN PATRICIA BYKERK VIVIAN BYKERK MD (NPI 1497089502) is an individual rheumatology provider in New York, New York, licensed in Foreign Country (50155) and active in the NPI registry since September 2009. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1497089502
Entity TypeIndividualFemale
Primary Taxonomy207RR0500X
Provider Legal NameDR. VIVIAN PATRICIA BYKERKCredential: VIVIAN BYKERK MD
Location Address535 E 70TH STNew York, NY 10021-4823
Mailing Address535 E 70th StNew York, NY 10021-4823 · (212) 774-7520 · Fax (212) 606-1605
Phone(212) 774-7520
Fax(212) 606-1605
Sole ProprietorYes
Enumeration DateSeptember 22, 2009
Last NPPES UpdateApril 27, 2021
NPPES CertifiedApril 27, 2021
✔ NPI 1497089502 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in ZZ · 50155
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
535 E 70TH ST, New York, NY 10021
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Other Names 1

Former Name (1)Dr. Vivian Patricia Bykerk Kern Vivian Bykerk Md

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Vivian Patricia Bykerk Vivian Bykerk Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Vivian Bykerk reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

New York Society For The Relief Of Ruptured & Crippled Maintaining
Same address
Special Hospital
535 E 70TH ST, HSS DEPARTMENT OF MEDICINE
New York, NY 10021
  • Reassigned Medicare billing, New York enrollment
  • 121 clinicians in this Medicare group
NPI 1427496652 (212) 774-2507

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10021 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
$150.24 typical visit price
range $65.69 – $198.19
Typical copayment $37.56 (range $16.42 – $49.54)
Most-billed visit code 99204
Established Patient
$114.88 typical visit price
range $21.20 – $160.66
Typical copayment $28.72 (range $5.30 – $40.16)
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.

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.

SARAH E. MCCORD PA-C
Physician Assistant (Surgical)
535 E 70TH ST
NEW YORK, NY 10021
New York County (212) 606-1585
MICHAEL NEWMAN SINGLETON M.D.
Anesthesiology
535 E 70TH ST
NEW YORK, NY 10021
New York County (212) 606-1036
GRETCHEN OSTRANDER ATC
Specialist/Technologist (Athletic Trainer)
535 E 70TH ST
NEW YORK, NY 10021
New York County (203) 257-5414
AMANDA PERLMUTTER
Speech-Language Pathologist
535 E 70TH ST
NEW YORK, NY 10021
New York County (212) 606-1137
MONICA ANIS MD
Anesthesiology
535 E 70TH ST
NEW YORK, NY 10021
New York County (201) 527-7051
MARIANA SOFIA MOREIRAS
Physical Therapist
535 E 70TH ST
NEW YORK, NY 10021
New York County (917) 260-4970
DR. SHEVAUN MACKIE DOYLE MD
Orthopaedic Surgery (Pediatric Orthopaedic Surgery)
535 E 70TH ST
NEW YORK, NY 10021
New York County (646) 797-8816
NATISHA REGINA ROSS PA-C
Physician Assistant
535 E 70TH ST
NEW YORK, NY 10021
New York County (212) 606-1004

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 Vivian Bykerk's NPI number?

The NPI number for Vivian Bykerk is 1497089502. It was assigned to this individual provider in the NPPES registry on September 22, 2009. The provider is also known as Dr. Vivian Patricia Bykerk Kern Vivian Bykerk MD.

Where is Vivian Bykerk located?

Vivian Bykerk practices at 535 E 70th St, New York, NY 10021. The listed phone number is (212) 774-7520.

What is Vivian Bykerk's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Vivian Bykerk enrolled in Medicare?

Yes. Vivian Bykerk is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Vivian Bykerk's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Vivian Bykerk reassigns Medicare benefits to New York Society For The Relief Of Ruptured & Crippled Maintaining (New York, NY). The 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 Vivian Bykerk'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 Vivian Bykerk was last updated on April 27, 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.