DR. RAIHANAHMED CHOWDHURY M.D.
NPI 1437494531
Anesthesiology in Syosset, NY
About Dr. Raihanahmed Chowdhury M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RAIHANAHMED CHOWDHURY M.D. (NPI 1437494531) is an individual anesthesiology provider in Syosset, New York, licensed in New York (207691) and active in the NPI registry since November 2012. He is enrolled in Medicare PECOS, is affiliated with Holy Cross Hospital, and is a graduate of Other (1986).
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. Raihanahmed Chowdhury 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
8Medicare enrollment records show Raihanahmed Chowdhury reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21218
- Reassigned Medicare billing, District of Columbia enrollment
- 482 clinicians in this Medicare group
Columbia, MD 21046
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- 717 clinicians in this Medicare group
Bowie, MD 20715
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- 56 clinicians in this Medicare group
Burtonsville, MD 20866
- Reassigned Medicare billing, District of Columbia enrollment
- 84 clinicians in this Medicare group
Upper Marlboro, MD 20774
- Reassigned Medicare billing, District of Columbia enrollment
- 9 clinicians in this Medicare group
Chevy Chase, MD 20815
- Reassigned Medicare billing, District of Columbia enrollment
- 78 clinicians in this Medicare group
La Plata, MD 20646
- Reassigned Medicare billing, Maryland enrollment
- 59 clinicians in this Medicare group
Centreville, VA 20121
- Reassigned Medicare billing, Virginia enrollment
- Medicare enrollment name: Uva Community Health Medical Group LLC
- 584 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 5
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Holy Cross Hospital
Acute Care Hospitals · Silver Spring, MDUniversity Of MD Charles Regional Medical Center
Acute Care Hospitals · La Plata, MDHoly Cross Germantown Hospital
Acute Care Hospitals · Germantown, MDMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Raihanahmed Chowdhury's NPI number?
The NPI number for Raihanahmed Chowdhury is 1437494531. It was assigned to this individual provider in the NPPES registry on November 30, 2012.
Where is Raihanahmed Chowdhury located?
Raihanahmed Chowdhury practices at 42 Willets Dr, Syosset, NY 11791. The listed phone number is (202) 570-0900.
What is Raihanahmed Chowdhury's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Raihanahmed Chowdhury enrolled in Medicare?
Yes. Raihanahmed Chowdhury 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 Raihanahmed Chowdhury's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Raihanahmed Chowdhury reassigns Medicare benefits to 8 organizations: Medstar Medical Group Anesthesiology LLC (Baltimore, MD), First Colonies Anesthesia Associates, LLC (Columbia, MD), Capital Care Anesthesia LLC (Bowie, MD), Holy Cross Anesthesiology Associate PA (Burtonsville, MD), Sandman, LLC (Upper Marlboro, MD) and 3 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 Raihanahmed Chowdhury's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Raihanahmed Chowdhury affiliated with any hospitals?
According to CMS data, Raihanahmed Chowdhury is affiliated with Holy Cross Hospital, University Of MD Charles Regional Medical Center and Holy Cross Germantown Hospital.
When was this NPI record last updated?
The NPPES record for Raihanahmed Chowdhury was last updated on November 30, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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. Raihanahmed Chowdhury, M.D. · NPI 1437494531
Anesthesiology physician in Syosset, New York. Individual provider, active in the CMS NPPES registry since November 30, 2012.
## Identity
- **NPI:** 1437494531 (Entity type: Individual)
- **Enumerated:** November 30, 2012
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 207691 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 42 WILLETS DR, Syosset, NY 11791-3917
- **Phone:** (202) 570-0900
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Medstar Medical Group Anesthesiology LLC (NPI 1528578333, Baltimore, MD); First Colonies Anesthesia Associates, LLC (NPI 1740218767, Columbia, MD); Capital Care Anesthesia LLC (NPI 1710110499, Bowie, MD); Holy Cross Anesthesiology Associate PA (NPI 1376501007, Burtonsville, MD); Sandman, LLC (NPI 1578030193, Upper Marlboro, MD); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1986
## Record status
- **NPPES last updated:** November 30, 2012
- **Other identifiers:** Medicaid 1727876 (PA)
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Source: [NPI Profile](https://npiprofile.com/npi/1437494531) · Data from the CMS NPPES public registry.