MR. MARCOS SASTRE III M.S., CF-SLP
NPI 1164928487
Speech-Language Pathologist in Rockville, MD
About Mr. Marcos Sastre Iii M.s., Cf-slp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. MARCOS SASTRE III M.S., CF-SLP (NPI 1164928487) is an individual speech-language pathologist provider in Rockville, Maryland and active in the NPI registry since April 2018. He is a graduate of Other (2018).
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
Mr. Marcos Sastre Iii M.s., Cf-slp 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 Marcos Sastre reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Baltimore, MD 21204
- Reassigned Medicare billing, District of Columbia enrollment
- 60 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.
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 Marcos Sastre's NPI number?
The NPI number for Marcos Sastre is 1164928487. It was assigned to this individual provider in the NPPES registry on April 4, 2018.
Where is Marcos Sastre located?
Marcos Sastre practices at 15245 Shady Grove Rd Ste 110, Rockville, MD 20850. The listed phone number is (301) 208-3210.
What is Marcos Sastre's specialty?
The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.
Is Marcos Sastre enrolled in Medicare?
Yes. Marcos Sastre 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 Marcos Sastre's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marcos Sastre reassigns Medicare benefits to Centers For Advanced Ent Care, LLC (Baltimore, MD). 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 Marcos Sastre'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 Marcos Sastre was last updated on April 4, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Mr. Marcos Sastre III, M.S., CF-SLP · NPI 1164928487
Speech-Language Pathologist provider in Rockville, Maryland. Individual provider, active in the CMS NPPES registry since April 4, 2018.
## Identity
- **NPI:** 1164928487 (Entity type: Individual)
- **Enumerated:** April 4, 2018
- **Primary specialty:** Speech-Language Pathologist · taxonomy 235Z00000X
- **Sole proprietor:** No
## Practice location
- **Address:** 15245 SHADY GROVE RD STE 110, Rockville, MD 20850-7202
- **Phone:** (301) 208-3210
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** Centers For Advanced Ent Care, LLC (NPI 1447781620, Baltimore, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** April 4, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1164928487) · Data from the CMS NPPES public registry.