ISABELLA MARTYNA CHOJNACKI MD
NPI 1013653153
Internal Medicine in White Plains, NY

Active since May 11, 2022PECOS EnrolledAccepts Medicare Assignment
41 E POST RD, WHITE PLAINS, NY 10601(914) 681-0600 Get Directions Write a Review

NPPES record last updated: January 12, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 12, 2026, May 11, 2022 (2 updates tracked since 2022).

About Isabella Martyna Chojnacki Md NPPES

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

ISABELLA MARTYNA CHOJNACKI MD (NPI 1013653153) is an individual internal medicine provider in White Plains, New York, licensed in New York (340670) and active in the NPI registry since May 2022. She is enrolled in Medicare PECOS, is affiliated with White Plains Hospital Center, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1013653153
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameISABELLA MARTYNA CHOJNACKICredential: MD
Location Address41 E POST RDWhite Plains, NY 10601-4699
Mailing Address41 E Post RdWhite Plains, NY 10601-4699
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateMay 11, 2022
Last NPPES UpdateJanuary 12, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 12, 2026
NPI 1013653153 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses Licensed in NY · 340670 Licensed in MI · 4351049274
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
41 E POST RD, White Plains, NY 10601

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Isabella Martyna Chojnacki 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.

PECOS PAC ID6608258223
PECOS Enrollment IDI20260403001338
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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

White Plains Hospital Center

Acute Care Hospitals · White Plains, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330304
Location41 East Post R0adWhite Plains, NY 10601 · Westchester County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10601 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
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
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.

Specialist
41 E POST RD
WHITE PLAINS, NY 10601
Internal Medicine (Cardiovascular Disease)
41 E POST RD
WHITE PLAINS, NY 10601
Physician Assistant (Medical)
41 E POST RD
WHITE PLAINS, NY 10601
Anesthesiology
41 E POST RD
WHITE PLAINS, NY 10601
Anesthesiology
41 E POST RD
WHITE PLAINS, NY 10601
Nurse Anesthetist, Certified Registered
41 E POST RD
WHITE PLAINS, NY 10601
Psychiatry & Neurology (Psychiatry)
41 E POST RD, DEPARTMET OF BEHAVIORAL HEALTH
WHITE PLAINS, NY 10601
Internal Medicine (Cardiovascular Disease)
41 E POST RD
WHITE PLAINS, NY 10601

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 Isabella Chojnacki's NPI number?

The NPI number for Isabella Chojnacki is 1013653153. It was assigned to this individual provider in the NPPES registry on May 11, 2022.

Where is Isabella Chojnacki located?

Isabella Chojnacki practices at 41 E Post Rd, White Plains, NY 10601. The listed phone number is (914) 681-0600.

What is Isabella Chojnacki's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Isabella Chojnacki enrolled in Medicare?

Yes. Isabella Chojnacki 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.

Is Isabella Chojnacki affiliated with any hospitals?

According to CMS data, Isabella Chojnacki is affiliated with White Plains Hospital Center.

When was this NPI record last updated?

The NPPES record for Isabella Chojnacki was last updated on January 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.