Patti Giallanzo
NPI 1043715444 · Acute Care Nurse Practitioner · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Patti Giallanzo is a Acute Care Nurse Practitioner provider in Walnut Creek, CA (NPI 1043715444).
Provider details
- NPI number
- 1043715444
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 95007194 (CA)
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
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
574 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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 175 | $144 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 127 | $99 |
| Advance Care Planning, First 30 Minutes99497 | 125 | $63 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 64 | $65 |
| Prolonged Hospital Inpatient Or Observation Care Evaluation and Management Service(s) Beyond the Total Time for the Primary Service (when the Primary Service Has Been Selected Using Time on the Date of the Primary Service); Each Additional 15 Minutes By ThG0316 | 56 | $25 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-03-27
- Last updated
- 2019-10-14
Frequently asked questions
- What is Patti Giallanzo's NPI number?
- Patti Giallanzo's National Provider Identifier (NPI) is 1043715444, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Patti Giallanzo's specialty?
- Patti Giallanzo is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Patti Giallanzo located?
- Patti Giallanzo's practice location on file with NPPES is 1450 Treat Blvd # 120b, Walnut Creek, CA 94597-2168.
- What is Patti Giallanzo's phone number?
- The practice phone number listed in the NPPES registry for Patti Giallanzo is (925) 296-7352.
- Does Patti Giallanzo accept Medicare?
- Patti Giallanzo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Patti Giallanzo's NPI active?
- Yes — Patti Giallanzo's NPI (1043715444) is active in the NPPES registry as of the last update on 2019-10-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.