Libby Costello Gard, FNP
NPI 1326239195 · Family Nurse Practitioner · Missoula, MT
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Libby Costello Gard, FNP is a Family Nurse Practitioner provider in Missoula, MT (NPI 1326239195).
Provider details
- NPI number
- 1326239195
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 099007632RN (OR)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
549 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 172 | $70 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 143 | $79 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 116 | $24 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 106 | $9 |
| Administration of Influenza Virus VaccineG0008 | 12 | $32 |
Typical Medicare-allowed amounts for these services range $9–$79 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 64 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 180 | 48 |
| Atorvastatin Calcium | 121 | 34 |
| Losartan Potassium | 113 | 28 |
| Lisinopril | 86 | 25 |
| Hydrochlorothiazide | 60 | 15 |
| Meloxicam | 60 | 18 |
| Progesterone, Micronizedbrand: Progesterone | 53 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-08-07
- Last updated
- 2021-05-10
- Certified
- 2021-05-10
Frequently asked questions
- What is Libby Costello Gard's NPI number?
- Libby Costello Gard's National Provider Identifier (NPI) is 1326239195, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Libby Costello Gard's specialty?
- Libby Costello Gard is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Libby Costello Gard located?
- Libby Costello Gard's practice location on file with NPPES is 1211 S Reserve St Ste 101, Missoula, MT 59801-3103.
- What is Libby Costello Gard's phone number?
- The practice phone number listed in the NPPES registry for Libby Costello Gard is (406) 327-3057.
- Does Libby Costello Gard accept Medicare?
- Libby Costello Gard is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Libby Costello Gard's NPI active?
- Yes — Libby Costello Gard's NPI (1326239195) is active in the NPPES registry as of the last update on 2021-05-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.