MARK ANDREAS WELLER M.D.
NPI 1760669501
Anesthesiology in New York, NY
About Mark Andreas Weller M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK ANDREAS WELLER M.D. (NPI 1760669501) is an individual anesthesiology provider in New York, New York, licensed in New York (247394) and active in the NPI registry since January 2008. He is enrolled in Medicare PECOS, is affiliated with Hospital For Special Surgery, and is a graduate of Other (1995).
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
Mark Andreas Weller 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 Mark Weller reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10021
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: East River Medical Associates PC
- 137 clinicians in this Medicare group
New York, NY 10019
- Reassigned Medicare billing, New York enrollment
- 58 clinicians in this Medicare group
New York, NY 10032
- Reassigned Medicare billing, New York enrollment
- 3,922 clinicians in this Medicare group
Mahwah, NJ 07430
- Reassigned Medicare billing, New Jersey enrollment
- 22 clinicians in this Medicare group
Stamford, CT 06902
- Reassigned Medicare billing, Connecticut enrollment
- 51 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 10
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hospital For Special Surgery
Acute Care Hospitals · New York, NYMedicare 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.
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.
NEW YORK, NY 10021
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 Mark Weller's NPI number?
The NPI number for Mark Weller is 1760669501. It was assigned to this individual provider in the NPPES registry on January 23, 2008.
Where is Mark Weller located?
Mark Weller practices at 535 E 70th St, New York, NY 10021. The listed phone number is (212) 606-1036.
What is Mark Weller's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Mark Weller enrolled in Medicare?
Yes. Mark Weller 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 Mark Weller's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Weller reassigns Medicare benefits to 5 organizations: East River Medical Associates P.C. (New York, NY), West Side Gi, LLC (New York, NY), Trustees Of Columbia University In The City Of New York (New York, NY), East River Medical Associates Of New Jersey PC (Mahwah, NJ) and Harbor Point Anesthesia LLC (Stamford, CT). 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 Mark Weller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mark Weller affiliated with any hospitals?
According to CMS data, Mark Weller is affiliated with Hospital For Special Surgery.
When was this NPI record last updated?
The NPPES record for Mark Weller was last updated on August 16, 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.
# Mark Andreas Weller, M.D. · NPI 1760669501
Anesthesiology physician in New York, New York. Individual provider, active in the CMS NPPES registry since January 23, 2008.
## Identity
- **NPI:** 1760669501 (Entity type: Individual)
- **Enumerated:** January 23, 2008
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 247394 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 535 E 70TH ST, New York, NY 10021-4823
- **Phone:** (212) 606-1036 · **Fax:** (212) 517-4481
## 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): East River Medical Associates P.C. (NPI 1932162567, New York, NY); West Side Gi, LLC (NPI 1588938682, New York, NY); Trustees Of Columbia University In The City Of New York (NPI 1477068971, New York, NY); East River Medical Associates Of New Jersey PC (NPI 1952097156, Mahwah, NJ); Harbor Point Anesthesia LLC (NPI 1043750532, Stamford, CT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1995
## Record status
- **NPPES last updated:** August 16, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1760669501) · Data from the CMS NPPES public registry.