MUHAMMAD ALI SIDDIQUI M.D.
NPI 1366440711
Anesthesiology in Poughkeepsie, NY
About Muhammad Ali Siddiqui M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MUHAMMAD ALI SIDDIQUI M.D. (NPI 1366440711) is an individual anesthesiology provider in Poughkeepsie, New York, licensed in New York (229381) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Healthalliance Hospital Marys Avenue Campus, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
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
Muhammad Ali Siddiqui 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
2Medicare enrollment records show Muhammad Siddiqui reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mount Kisco, NY 10549
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Optum Medical Care PC
- 1,601 clinicians in this Medicare group
Valhalla, NY 10595
- Reassigned Medicare billing, New York enrollment
- 1,663 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Healthalliance Hospital Marys Avenue Campus
Acute Care Hospitals · Kingston, NYWestchester Medical Center
Acute Care Hospitals · Valhalla, 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.
POUGHKEEPSIE, NY 12601
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 Muhammad Siddiqui's NPI number?
The NPI number for Muhammad Siddiqui is 1366440711. It was assigned to this individual provider in the NPPES registry on July 11, 2005.
Where is Muhammad Siddiqui located?
Muhammad Siddiqui practices at 241 North Rd, Poughkeepsie, NY 12601. The listed phone number is (845) 483-5989.
What is Muhammad Siddiqui's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Muhammad Siddiqui enrolled in Medicare?
Yes. Muhammad Siddiqui 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 Muhammad Siddiqui's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Muhammad Siddiqui reassigns Medicare benefits to 2 organizations: Optum Medical Care, P.C. (Mount Kisco, NY) and Westchester Medical Center Advanced Physician Services PC (Valhalla, 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 Muhammad Siddiqui's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Muhammad Siddiqui affiliated with any hospitals?
According to CMS data, Muhammad Siddiqui is affiliated with Healthalliance Hospital Marys Avenue Campus and Westchester Medical Center.
When was this NPI record last updated?
The NPPES record for Muhammad Siddiqui was last updated on October 30, 2020. 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.
# Muhammad Ali Siddiqui, M.D. · NPI 1366440711
Anesthesiology physician in Poughkeepsie, New York. Individual provider, active in the CMS NPPES registry since July 11, 2005.
## Identity
- **NPI:** 1366440711 (Entity type: Individual)
- **Enumerated:** July 11, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 229381 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 241 NORTH RD, Poughkeepsie, NY 12601-1154
- **Phone:** (845) 483-5989 · **Fax:** (845) 483-5912
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Optum Medical Care, P.C. (NPI 1982643003, Mount Kisco, NY); Westchester Medical Center Advanced Physician Services PC (NPI 1740687458, Valhalla, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1982
## Record status
- **NPPES last updated:** October 30, 2020
- **Other identifiers:** Medicaid 02458666 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1366440711) · Data from the CMS NPPES public registry.