MARILYN LADEWIG
NPI 1821356106
Speech-Language Pathologist in Bronx, NY
About Marilyn Ladewig NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARILYN LADEWIG (NPI 1821356106) is an individual speech-language pathologist provider in Bronx, New York, licensed in (021087-1) and active in the NPI registry since April 2012. She is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Marilyn Ladewig 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
7Medicare enrollment records show Marilyn Ladewig reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bronx, NY 10460
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: United Cerebral Palsy Assoc Of Nys Inc
- 26 clinicians in this Medicare group
New York, NY 10010
- Reassigned Medicare billing, New York enrollment
- 49 clinicians in this Medicare group
New Hyde Park, NY 11042
- Reassigned Medicare billing, New York enrollment
- 26 clinicians in this Medicare group
Garden City, NY 11530
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Epic Long Island
- 110 clinicians in this Medicare group
East Meadow, NY 11554
- Reassigned Medicare billing, New York enrollment
- 75 clinicians in this Medicare group
Staten Island, NY 10310
- Reassigned Medicare billing, New York enrollment
- 44 clinicians in this Medicare group
Newburgh, NY 12550
- Reassigned Medicare billing, New York enrollment
- 50 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
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.
Other Providers at the Same Location NPPES 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BRONX, NY 10460
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 Marilyn Ladewig's NPI number?
The NPI number for Marilyn Ladewig is 1821356106. It was assigned to this individual provider in the NPPES registry on April 24, 2012. The provider is also known as M B.
Where is Marilyn Ladewig located?
Marilyn Ladewig practices at 979 Cross Bronx Expy Sr North, Bronx, NY 10460. The listed phone number is (718) 665-7565.
What is Marilyn Ladewig's specialty?
The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.
Is Marilyn Ladewig enrolled in Medicare?
Yes. Marilyn Ladewig 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 Marilyn Ladewig's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marilyn Ladewig reassigns Medicare benefits to 7 organizations: United Cerebral Palsy Associations Of New York State, Inc. (Bronx, NY), United Cerebral Palsy Of New York City Inc (New York, NY), Global Speech Language Pathology PC (New Hyde Park, NY), Epilepsy Foundation Of L.I. (Garden City, NY), Epic Medical Services PC (East Meadow, NY) and 2 more organizations, listed in the Medicare section above. 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 Marilyn Ladewig'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 Marilyn Ladewig was last updated on July 13, 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.
# Marilyn Ladewig · NPI 1821356106
Speech-Language Pathologist provider in Bronx, New York. Individual provider, active in the CMS NPPES registry since April 24, 2012.
## Identity
- **NPI:** 1821356106 (Entity type: Individual)
- **Enumerated:** April 24, 2012
- **Primary specialty:** Speech-Language Pathologist · taxonomy 235Z00000X
- **State license:** 021087-1
- **Sole proprietor:** No
## Practice location
- **Address:** 979 CROSS BRONX EXPY, SR NORTH, Bronx, NY 10460-4885
- **Phone:** (718) 665-7565
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): United Cerebral Palsy Associations Of New York State, Inc. (NPI 1366507758, Bronx, NY); United Cerebral Palsy Of New York City Inc (NPI 1730302019, New York, NY); Global Speech Language Pathology PC (NPI 1710359625, New Hyde Park, NY); Epilepsy Foundation Of L.I. (NPI 1467755785, Garden City, NY); Epic Medical Services PC (NPI 1134589609, East Meadow, NY); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** July 13, 2021
- **Other identifiers:** Medicaid 03593280 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1821356106) · Data from the CMS NPPES public registry.