ANGELICA BIALCZAK DO
NPI 1770111684
Anesthesiology in Washington, DC
About Angelica Bialczak Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANGELICA BIALCZAK DO (NPI 1770111684) is an individual anesthesiology provider in Washington, District Of Columbia, licensed in New York (328866-01) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, is affiliated with Lenox Hill Hospital, and is a graduate of Other (2020).
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
Angelica Bialczak Do 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
3Medicare enrollment records show Angelica Bialczak reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10025
- Reassigned Medicare billing, New York enrollment
- 5,251 clinicians in this Medicare group
New York, NY 10037
- Reassigned Medicare billing, New York enrollment
- 2,094 clinicians in this Medicare group
Chappaqua, NY 10514
- Reassigned Medicare billing, New York enrollment
- 1,406 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lenox Hill Hospital
Acute Care Hospitals · New York, NYOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WASHINGTON, DC 20007
WASHINGTON, DC 20007
WASHINGTON, DC 20007
WASHINGTON, DC 20007
WASHINGTON, DC 20007
WASHINGTON, DC 20007
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 Angelica Bialczak's NPI number?
The NPI number for Angelica Bialczak is 1770111684. It was assigned to this individual provider in the NPPES registry on March 28, 2020.
Where is Angelica Bialczak located?
Angelica Bialczak practices at 3800 Reservoir Rd NW, Washington, DC 20007. The listed phone number is (516) 343-8638.
What is Angelica Bialczak's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Angelica Bialczak enrolled in Medicare?
Yes. Angelica Bialczak 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 Angelica Bialczak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Angelica Bialczak reassigns Medicare benefits to 3 organizations: Montefiore Medical Center (New York, NY), Physician Affiliate Group Of New York PC (New York, NY) and North Shore - Lij Anesthesiology, PC (Chappaqua, NY). 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 Angelica Bialczak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Angelica Bialczak affiliated with any hospitals?
According to CMS data, Angelica Bialczak is affiliated with Lenox Hill Hospital.
When was this NPI record last updated?
The NPPES record for Angelica Bialczak was last updated on June 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Angelica Bialczak, DO · NPI 1770111684
Anesthesiology physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since March 28, 2020.
## Identity
- **NPI:** 1770111684 (Entity type: Individual)
- **Enumerated:** March 28, 2020
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 328866-01 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3800 RESERVOIR RD NW, Washington, DC 20007-2113
- **Phone:** (516) 343-8638
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Montefiore Medical Center (NPI 1760288278, New York, NY); Physician Affiliate Group Of New York PC (NPI 1013375526, New York, NY); North Shore - Lij Anesthesiology, PC (NPI 1417401266, Chappaqua, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** June 6, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1770111684) · Data from the CMS NPPES public registry.