DR. ANN CAROLYN LINNEBUR MD
NPI 1043273543
Internal Medicine - Cardiovascular Disease in Los Alamos, NM
About Dr. Ann Carolyn Linnebur Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ANN CAROLYN LINNEBUR MD (NPI 1043273543) is an individual cardiovascular disease provider in Los Alamos, New Mexico, licensed in New Mexico (NM 73-162) and active in the NPI registry since April 2006. She is enrolled in Medicare PECOS, is affiliated with Christus St Vincent Regional Medical Center, and is a graduate of University Of Michigan Medical School (1969).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Dr. Ann Carolyn Linnebur Md 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 Reassignment
Medicare enrollment records show Ann Linnebur reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Alamos, NM 87544
- Reassigned Medicare billing, New Mexico enrollment
- 10 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 23
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Christus St Vincent Regional Medical Center
Acute Care Hospitals · Santa Fe, NMLos Alamos Medical Center
Acute Care Hospitals · Los Alamos, 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 87544 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare 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.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
LOS ALAMOS, NM 87544
LOS ALAMOS, NM 87544
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 Ann Linnebur's NPI number?
The NPI number for Ann Linnebur is 1043273543. It was assigned to this individual provider in the NPPES registry on April 7, 2006. The provider is also known as Ann Carolyn Voegtline.
Where is Ann Linnebur located?
Ann Linnebur practices at 3917 West Rd Suite A, Los Alamos, NM 87544. The listed phone number is (505) 661-8900.
What is Ann Linnebur's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Ann Linnebur enrolled in Medicare?
Yes. Ann Linnebur 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 organization bills Medicare for Ann Linnebur's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ann Linnebur reassigns Medicare benefits to Medical Associates Of Northern New Mexico (Los Alamos, NM). The 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 Ann Linnebur's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Ann Linnebur affiliated with any hospitals?
According to CMS data, Ann Linnebur is affiliated with Christus St Vincent Regional Medical Center, Los Alamos Medical Center and Holy Cross Hospital A Div Of Taos Health Systems.
When was this NPI record last updated?
The NPPES record for Ann Linnebur was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 days 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.
# Dr. Ann Carolyn Linnebur, MD · NPI 1043273543
Cardiovascular Disease physician in Los Alamos, New Mexico. Individual provider, active in the CMS NPPES registry since April 7, 2006.
## Identity
- **NPI:** 1043273543 (Entity type: Individual)
- **Enumerated:** April 7, 2006
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** NM 73-162 (New Mexico)
- **Sole proprietor:** No
## Practice location
- **Address:** 3917 WEST RD, SUITE A, Los Alamos, NM 87544-2275
- **Phone:** (505) 661-8900 · **Fax:** (505) 661-8916
## 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:** Medical Associates Of Northern New Mexico (NPI 1073501508, Los Alamos, NM), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Michigan Medical School, class of 1969
## Record status
- **NPPES last updated:** September 29, 2026
- **Other identifiers:** Medicaid 16386 (NM)
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Source: [NPI Profile](https://npiprofile.com/npi/1043273543) · Data from the CMS NPPES public registry.