DR. MOLLIE ALEXANDRA BIEWALD MD
NPI 1679839351
Internal Medicine - Hospice and Palliative Medicine in New York, NY
About Dr. Mollie Alexandra Biewald Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MOLLIE ALEXANDRA BIEWALD MD (NPI 1679839351) is an individual hospice and palliative medicine provider in New York, New York, licensed in New York (274741) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS, is affiliated with Mount Sinai Hospital, and is a graduate of Other (2012).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Dr. Mollie Alexandra Biewald 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.
Medicare Billing Reassignment
Medicare enrollment records show Mollie Biewald reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New York, NY 10029
- Reassigned Medicare billing, New York enrollment
- 168 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.
Areas of Expertise CMS Part B claims 3
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mount Sinai Hospital
Acute Care Hospitals · New York, NYMount Sinai St Luke's Roosevelt 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.
NEW YORK, NY 10029
NEW YORK, NY 10029
NEW YORK, NY 10029
NEW YORK, NY 10029
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 Mollie Biewald's NPI number?
The NPI number for Mollie Biewald is 1679839351. It was assigned to this individual provider in the NPPES registry on April 6, 2012.
Where is Mollie Biewald located?
Mollie Biewald practices at 1 Gustave L Levy Pl, New York, NY 10029. The listed phone number is (212) 241-6500.
What is Mollie Biewald's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hospice and Palliative Medicine, with taxonomy code 207RH0002X.
Is Mollie Biewald enrolled in Medicare?
Yes. Mollie Biewald 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 organization bills Medicare for Mollie Biewald's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mollie Biewald reassigns Medicare benefits to Icahn School Of Medicine At Mount Sinai (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 Mollie Biewald's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mollie Biewald affiliated with any hospitals?
According to CMS data, Mollie Biewald is affiliated with Mount Sinai Hospital and Mount Sinai St Luke's Roosevelt Hospital.
When was this NPI record last updated?
The NPPES record for Mollie Biewald was last updated on February 12, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Dr. Mollie Alexandra Biewald, MD · NPI 1679839351
Hospice and Palliative Medicine physician in New York, New York. Individual provider, active in the CMS NPPES registry since April 6, 2012.
## Identity
- **NPI:** 1679839351 (Entity type: Individual)
- **Enumerated:** April 6, 2012
- **Primary specialty:** Internal Medicine - Hospice and Palliative Medicine · taxonomy 207RH0002X
- **State license:** 274741 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 GUSTAVE L LEVY PL, New York, NY 10029-6504
- **Phone:** (212) 241-6500 · **Fax:** (212) 426-5054
## 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:** Icahn School Of Medicine At Mount Sinai (NPI 1689947160, New York, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** February 12, 2020
- **Other identifiers:** Medicaid 04549419 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1679839351) · Data from the CMS NPPES public registry.