RICHARD L. MUELLER,MD,PC
NPI 1851589667
Internal Medicine - Cardiovascular Disease in New York, NY
About Richard L. Mueller,md,pc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RICHARD L. MUELLER,MD,PC (NPI 1851589667) is a healthcare organization registered as a cardiovascular disease in New York, New York and active in the NPI registry since October 2007. The organization lists Richard L. Mueller, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Richard L. Mueller,md,pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
2Medicare enrollment records show 2 clinicians reassign Medicare billing to Richard L. Mueller,md,pc, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.
Clinicians, nearest first (2)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Richard L. Mueller,md,pc's NPI number?
The NPI number for Richard L. Mueller,md,pc is 1851589667. It was assigned to this organization in the NPPES registry on October 5, 2007.
Where is Richard L. Mueller,md,pc located?
Richard L. Mueller,md,pc is located at 401 E 55th St, New York, NY 10022. The listed phone number is (212) 593-9800.
What is Richard L. Mueller,md,pc's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Richard L. Mueller,md,pc enrolled in Medicare?
Yes. Richard L. Mueller,md,pc is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Richard L. Mueller,md,pc?
According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Cardiovascular Disease (Cardiology), reassign their Medicare billing to Richard L. Mueller,md,pc. A 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 the clinician's services. Of these, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Richard L. Mueller,md,pc was last updated on November 28, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Richard L. Mueller,md,pc · NPI 1851589667
Cardiovascular Disease organization in New York, New York. Organization record, active in the CMS NPPES registry since October 5, 2007.
## Identity
- **NPI:** 1851589667 (Entity type: Organization)
- **Enumerated:** October 5, 2007
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **Organization subpart:** No
- **Authorized official:** Richard Mueller, PRESIDENT
## Practice location
- **Address:** 401 E 55TH ST, New York, NY 10022-4103
- **Phone:** (212) 593-9800 · **Fax:** (212) 593-5757
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 2 clinicians (Cardiovascular Disease (Cardiology)) reassign Medicare billing to this organization (form CMS-855R); 1 practice at this address and 2 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 28, 2007
- **Other identifiers:** Medicare PIN WCW431 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1851589667) · Data from the CMS NPPES public registry.