ANN MARIE S OCALLAGHAN RN CRNA
NPI 1588850176
Nurse Anesthetist, Certified Registered in Marble Falls, TX
About Ann Marie S Ocallaghan Rn Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANN MARIE S OCALLAGHAN RN CRNA (NPI 1588850176) is an individual nurse anesthetist, certified registered in Marble Falls, Texas, licensed in Texas (AP115882) and active in the NPI registry since September 2007. She is enrolled in Medicare PECOS, maintains a secondary practice location in Houston, and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Ann Marie S Ocallaghan Rn Crna 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
9Medicare enrollment records show Ann Marie Ocallaghan reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pflugerville, TX 78660
- Reassigned Medicare billing, Texas enrollment
- 2,795 clinicians in this Medicare group
Arlington, TX 76006
- Reassigned Medicare billing, Texas enrollment
- 1,164 clinicians in this Medicare group
Webster, TX 77598
- Reassigned Medicare billing, Texas enrollment
- 543 clinicians in this Medicare group
Durango, CO 81303
- Reassigned Medicare billing, Colorado enrollment
- Medicare enrollment name: Animas Surgical Hospital LLC
- 69 clinicians in this Medicare group
Cortez, CO 81321
- Reassigned Medicare billing, Colorado enrollment
- 23 clinicians in this Medicare group
Rifle, CO 81650
- Reassigned Medicare billing, Colorado enrollment
- 93 clinicians in this Medicare group
New York, NY 10065
- Reassigned Medicare billing, New York enrollment
- 384 clinicians in this Medicare group
New York, NY 10028
- Reassigned Medicare billing, New York enrollment
- 140 clinicians in this Medicare group
Bronx, NY 10451
- Reassigned Medicare billing, New York enrollment
- 971 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
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78654 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.
MARBLE FALLS, TX 78654
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 Marie Ocallaghan's NPI number?
The NPI number for Ann Marie Ocallaghan is 1588850176. It was assigned to this individual provider in the NPPES registry on September 18, 2007.
Where is Ann Marie Ocallaghan located?
Ann Marie Ocallaghan practices at 810 W Highway 71, Marble Falls, TX 78654. The listed phone number is (830) 201-8000.
What is Ann Marie Ocallaghan's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Ann Marie Ocallaghan enrolled in Medicare?
Yes. Ann Marie Ocallaghan 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 Ann Marie Ocallaghan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ann Marie Ocallaghan reassigns Medicare benefits to 9 organizations: Scott & White Clinic (Pflugerville, TX), Northstar Anesthesia, PA (Arlington, TX), Texans Anesthesia Associates PLLC (Webster, TX), Durango Surgery Center LLC (Durango, CO), Novus Colorado Professional Corporation (Cortez, CO) and 4 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 Ann Marie Ocallaghan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ann Marie Ocallaghan accept?
Health plans from Blue Cross and Blue Shield of Texas list Ann Marie Ocallaghan 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.
When was this NPI record last updated?
The NPPES record for Ann Marie Ocallaghan was last updated on October 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Ann Marie S Ocallaghan, RN CRNA · NPI 1588850176
Nurse Anesthetist, Certified Registered physician in Marble Falls, Texas. Individual provider, active in the CMS NPPES registry since September 18, 2007.
## Identity
- **NPI:** 1588850176 (Entity type: Individual)
- **Enumerated:** September 18, 2007
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** AP115882 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 810 W HIGHWAY 71, Marble Falls, TX 78654-8602
- **Phone:** (830) 201-8000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 9 organizations under Medicare reassignment (form CMS-855R): Scott & White Clinic (NPI 1679691729, Pflugerville, TX); Northstar Anesthesia, PA (NPI 1912978610, Arlington, TX); Texans Anesthesia Associates PLLC (NPI 1275733982, Webster, TX); Durango Surgery Center LLC (NPI 1548870603, Durango, CO); Novus Colorado Professional Corporation (NPI 1437723640, Cortez, CO); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** October 7, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1588850176) · Data from the CMS NPPES public registry.