DR. SERGIO ALEJANDRO RAMIREZ M.D.
NPI 1811281439
Surgery in Brooklyn, NY
About Dr. Sergio Alejandro Ramirez M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SERGIO ALEJANDRO RAMIREZ M.D. (NPI 1811281439) is an individual surgery provider in Brooklyn, New York, licensed in Connecticut (72513) and active in the NPI registry since May 2011. He is enrolled in Medicare PECOS and is a graduate of Other (2009).
NPPES Registry Identity
Specialties & Licenses 2
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. Sergio Alejandro Ramirez M.d. 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
5Medicare enrollment records show Sergio Ramirez reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brooklyn, NY 11238
- Reassigned Medicare billing, New York enrollment
- 35 clinicians in this Medicare group
Brooklyn, NY 11237
- Reassigned Medicare billing, New York enrollment
- 52 clinicians in this Medicare group
Valley Stream, NY 11581
- Reassigned Medicare billing, New York enrollment
- 17 clinicians in this Medicare group
Bronx, NY 10462
- Reassigned Medicare billing, New York enrollment
- 52 clinicians in this Medicare group
Bronx, NY 10462
- Reassigned Medicare billing, New York enrollment
- 32 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11203 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
BROOKLYN, NY 11203
BROOKLYN, NY 11203
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 Sergio Ramirez's NPI number?
The NPI number for Sergio Ramirez is 1811281439. It was assigned to this individual provider in the NPPES registry on May 31, 2011.
Where is Sergio Ramirez located?
Sergio Ramirez practices at 450 Clarkson Ave Suny Downstate, Brooklyn, NY 11203. The listed phone number is (718) 270-1000.
What is Sergio Ramirez's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Sergio Ramirez enrolled in Medicare?
Yes. Sergio Ramirez 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 Sergio Ramirez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sergio Ramirez reassigns Medicare benefits to 5 organizations: New York City Healthcare Medical Services LLC (Brooklyn, NY), Bushwick Medical Of New York LLC (Brooklyn, NY), Valley Stream Professional Medical Services, LLC (Valley Stream, NY), Pelham Pkwy Medical Of New York LLC (Bronx, NY) and Pelham Pkwy Professional Medical Services Of New York LLC (Bronx, 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 Sergio Ramirez'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 Sergio Ramirez was last updated on September 26, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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. Sergio Alejandro Ramirez, M.D. · NPI 1811281439
Surgery physician in Brooklyn, New York. Individual provider, active in the CMS NPPES registry since May 31, 2011.
## Identity
- **NPI:** 1811281439 (Entity type: Individual)
- **Enumerated:** May 31, 2011
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** 72513 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 450 CLARKSON AVE, SUNY DOWNSTATE, Brooklyn, NY 11203-2012
- **Phone:** (718) 270-1000
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): New York City Healthcare Medical Services LLC (NPI 1487489688, Brooklyn, NY); Bushwick Medical Of New York LLC (NPI 1720565922, Brooklyn, NY); Valley Stream Professional Medical Services, LLC (NPI 1356739668, Valley Stream, NY); Pelham Pkwy Medical Of New York LLC (NPI 1285156067, Bronx, NY); Pelham Pkwy Professional Medical Services Of New York LLC (NPI 1063926962, Bronx, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** September 26, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1811281439) · Data from the CMS NPPES public registry.