Ann Marie Ocallaghan, RN CRNA
NPI 1588850176 · Certified Registered Nurse Anesthetist · Marble Falls, TX
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ann Marie Ocallaghan, RN CRNA is a Certified Registered Nurse Anesthetist provider in Marble Falls, TX (NPI 1588850176).
Provider details
- NPI number
- 1588850176
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN CRNA
- Sex
- Female
- Sole proprietor
- No
- License
- AP115882 (TX)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
20 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 20 | $58 |
Typical Medicare-allowed amounts for these services range $58–$58 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 1515 Holcombe BlvdHouston, TX 77030-4000Phone: (713) 792-6161
Registry dates
- Enumerated
- 2007-09-18
- Last updated
- 2024-11-06
- Certified
- 2024-11-06
Frequently asked questions
- What is Ann Marie Ocallaghan's NPI number?
- Ann Marie Ocallaghan's National Provider Identifier (NPI) is 1588850176, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann Marie Ocallaghan's specialty?
- Ann Marie Ocallaghan is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ann Marie Ocallaghan located?
- Ann Marie Ocallaghan's practice location on file with NPPES is 810 W Highway 71, Marble Falls, TX 78654-8602.
- What is Ann Marie Ocallaghan's phone number?
- The practice phone number listed in the NPPES registry for Ann Marie Ocallaghan is (830) 201-8000.
- Does Ann Marie Ocallaghan accept Medicare?
- Ann Marie Ocallaghan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ann Marie Ocallaghan's NPI active?
- Yes — Ann Marie Ocallaghan's NPI (1588850176) is active in the NPPES registry as of the last update on 2024-11-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.