THEMIS NTALAGEORGOS M. D.
NPI 1740535897
Internal Medicine in Rio Rancho, NM
About Themis Ntalageorgos M. D. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THEMIS NTALAGEORGOS M. D. (NPI 1740535897) is an individual internal medicine provider in Rio Rancho, New Mexico, licensed in New Mexico (MD2015-0157) and active in the NPI registry since July 2012. He is enrolled in Medicare PECOS, is affiliated with Unm Hospital, and is a graduate of Other (2002).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Accepted Insurance
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
Themis Ntalageorgos 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
10Medicare enrollment records show Themis Ntalageorgos reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Albuquerque, NM 87109
- Reassigned Medicare billing, New Mexico enrollment
- 554 clinicians in this Medicare group
Albuquerque, NM 87109
- Reassigned Medicare billing, New Mexico enrollment
- 399 clinicians in this Medicare group
Albuquerque, NM 87106
- Reassigned Medicare billing, New Mexico enrollment
- 2,105 clinicians in this Medicare group
Albuquerque, NM 87106
- Reassigned Medicare billing, New Mexico enrollment
- 505 clinicians in this Medicare group
Gallup, NM 87301
- Reassigned Medicare billing, New Mexico enrollment
- 179 clinicians in this Medicare group
Bloomfield, NM 87413
- Reassigned Medicare billing, New Mexico enrollment
- 368 clinicians in this Medicare group
Raton, NM 87740
- Reassigned Medicare billing, New Mexico enrollment
- 51 clinicians in this Medicare group
Las Cruces, NM 88011
- Reassigned Medicare billing, New Mexico enrollment
- 66 clinicians in this Medicare group
Crossett, AR 71635
- Reassigned Medicare billing, New Mexico enrollment
- 114 clinicians in this Medicare group
West Memphis, AR 72301
- Reassigned Medicare billing, New Mexico enrollment
- 56 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 2
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Unm Hospital
Acute Care Hospitals · Albuquerque, NMChristus St Vincent Regional Medical Center
Acute Care Hospitals · Santa Fe, NMMiners' Colfax Medical Center
Critical Access Hospitals · Raton, NMHoly Cross Hospital A Div Of Taos Health Systems
Critical Access Hospitals · Taos, NMPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 87144 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
RIO RANCHO, NM 87144
RIO RANCHO, NM 87144
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 Themis Ntalageorgos's NPI number?
The NPI number for Themis Ntalageorgos is 1740535897. It was assigned to this individual provider in the NPPES registry on July 16, 2012.
Where is Themis Ntalageorgos located?
Themis Ntalageorgos practices at 3001 Broadmoor Blvd NE, Rio Rancho, NM 87144. The listed phone number is (505) 994-7000.
What is Themis Ntalageorgos's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Themis Ntalageorgos enrolled in Medicare?
Yes. Themis Ntalageorgos 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 Themis Ntalageorgos's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Themis Ntalageorgos reassigns Medicare benefits to 10 organizations: Southwest Medical Associates, LLC (Albuquerque, NM), St Vincent Hospital (Albuquerque, NM), Unm Medical Group Inc (Albuquerque, NM), Unm Hospital (Albuquerque, NM), Rehoboth Mckinley Christian Health Care Services, Inc (Gallup, NM) and 5 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 Themis Ntalageorgos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Themis Ntalageorgos accept?
Health plans from Blue Cross Blue Shield of Arizona list Themis Ntalageorgos as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Themis Ntalageorgos affiliated with any hospitals?
According to CMS data, Themis Ntalageorgos is affiliated with Unm Hospital, Christus St Vincent Regional Medical Center, Miners' Colfax Medical Center and Holy Cross Hospital A Div Of Taos Health Systems.
When was this NPI record last updated?
The NPPES record for Themis Ntalageorgos was last updated on January 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.
# Themis Ntalageorgos, M. D. · NPI 1740535897
Internal Medicine physician in Rio Rancho, New Mexico. Individual provider, active in the CMS NPPES registry since July 16, 2012.
## Identity
- **NPI:** 1740535897 (Entity type: Individual)
- **Enumerated:** July 16, 2012
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** MD2015-0157 (New Mexico)
- **Sole proprietor:** No
## Practice location
- **Address:** 3001 BROADMOOR BLVD NE, Rio Rancho, NM 87144-2100
- **Phone:** (505) 994-7000
## 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:** 10 organizations under Medicare reassignment (form CMS-855R): Southwest Medical Associates, LLC (NPI 1164491072, Albuquerque, NM); St Vincent Hospital (NPI 1184558363, Albuquerque, NM); Unm Medical Group Inc (NPI 1831218627, Albuquerque, NM); Unm Hospital (NPI 1689747552, Albuquerque, NM); Rehoboth Mckinley Christian Health Care Services, Inc (NPI 1689784506, Gallup, NM); and 5 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2002
## Record status
- **NPPES last updated:** January 19, 2026
- **Other identifiers:** Medicaid 54530725 (NM)
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Source: [NPI Profile](https://npiprofile.com/npi/1740535897) · Data from the CMS NPPES public registry.