MARK SEREDOWYCH, MD, PC
NPI 1447568811
Internal Medicine in Santa Fe, NM
About Mark Seredowych, Md, Pc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK SEREDOWYCH, MD, PC (NPI 1447568811) is a healthcare organization registered as an internal medicine in Santa Fe, New Mexico and active in the NPI registry since September 2010. The organization lists Mark George Seredowych, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
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)
Mark Seredowych, Md, Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Mark Seredowych, MD, PC, which bills Medicare for the services this clinician delivers.
Clinician (1)
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 Mark Seredowych, MD, PC's NPI number?
The NPI number for Mark Seredowych, MD, PC is 1447568811. It was assigned to this organization in the NPPES registry on September 20, 2010.
Where is Mark Seredowych, MD, PC located?
Mark Seredowych, MD, PC is located at 1650 Hospital Dr Suite 200, Santa Fe, NM 87505. The listed phone number is (505) 982-4276.
What is Mark Seredowych, MD, PC's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Mark Seredowych, MD, PC enrolled in Medicare?
Yes. Mark Seredowych, MD, PC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Mark Seredowych, MD, PC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Mark Seredowych, 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Mark Seredowych, MD, PC was last updated on September 20, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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 Seredowych, Md, Pc · NPI 1447568811
Internal Medicine organization in Santa Fe, New Mexico. Organization record, active in the CMS NPPES registry since September 20, 2010.
## Identity
- **NPI:** 1447568811 (Entity type: Organization)
- **Enumerated:** September 20, 2010
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** Mark Seredowych, OWNER
## Practice location
- **Address:** 1650 HOSPITAL DR, SUITE 200, Santa Fe, NM 87505-4769
- **Phone:** (505) 982-4276 · **Fax:** (505) 983-7571
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Internal Medicine) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 20, 2010
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Source: [NPI Profile](https://npiprofile.com/npi/1447568811) · Data from the CMS NPPES public registry.